Characteristics of living organism
|
|
- Gwendolyn Burke
- 5 years ago
- Views:
Transcription
1 At a glance : Chapter 2 Nutrition in Animals Living organisms are bundles of cells that carry out specialized functions. 1. Life is uncertain because Organic Matter is born, it Organic / Biotic Matter grows, and it dies or comes to an end in its physical form. 2. All forms of life : plant, animal, birds, insects, humans, are Living or Organic matter on Earth. 3. Organism have movement or locomotion, and the ability to re-create its own kind. Animals and human bring up their young ones. 4. When a form of life will end or how it will react in various situations is uncertain. This is a basic feature of life. 3 Characteristics of living organism Respirat ion movement Growth and repair Life span and death Sensitivit y Nutrition Reproducti on Excretion Organis m Shape and size Maintaining internal conditions Cellular organizati on 9 10 x 10 Learning TM Page 1
2 Internal Growth Growth in Living Organisms Cellular organisation is internal Cells increase in size and number to cause internal growth Differential Growth Substances in food causes different parts of the body to grow in different proportions Food is converted into protoplasm to enable cells to absorb it easily Growth is Irreversible Growth in living organism cannot be reversed. The movement of growth is always forward and never backward. 10 Living organisms are bundles of cells carrying out specialized functions Feeding and Nutrition result From many steps In the cell activity Movement of The body is due Ability of the cells To contract and Expand back to Original shape Obtain energy from food and respire ( have oxidation) Show movement through internal life force Review : In Chapter 1 it was learnt that : Born, grow, reproduce, and die Through production of more Body substance and more Cell substance. Can self repair and self clean Made of cell structures Blood cells transport Oxygen and nutrition From digested food, Protect the body from diseases, absorb water, regulate body heat, and reproduce their own kind. Repair of cells Due to cell division x 10 Learning TM Page 2
3 1. Nutrition is the energy required to carry out the activities of life. All living organisms get this energy from Food. 2. Plants with leaves are the only organisms that make their own food. They need soil water, air, and sunlight for making their own food. 3. All other forms of living organisms depend on plants for their food. Now: Chapter 2 deals with Nutrition in Animals 1. What is included in Animal nutrition? 3. How is the food digested? Digestion means breaking down the food into simpler units. 3. Utilisatio n of food by the body 1. Nutritient requireme nt Animal Nutrition includes 1. WHAT? Points 2 and 3 = HOW? 2. Mode of intake of food 2. The process of Nutrition involves the following steps : a) Ingestion or taking the food into the body. b) Digestion, or breaking down the food in simpler substances c) Absorption or making the soluble food a part of the blood stream to be carried to all parts. d) Assimilation converting food into energy for use. e) Egestion transporting of waste material for throwing out of the body 3. What is digestion and why is it needed? 1. What does the animal eat? a) Herbivorous eat: Grass, shrub leaves, berries, plants, roots, tree leaves, fruits. b) Carnivorous eat other animals that they hunt. c) Scavengers eat dead animals and decaying matter and other small animals they can hunt. 2. How does it eat? By : Cutting, chewing, and swallowing; Capturing and swallowing, sucking, sponging, scrapping, picking, piercing and sucking. 10 x 10 Learning TM Page 3
4 Answer. The process of breaking down of complex food components, into simpler soluble forms, that are easier to be absorbed by the living organism, is called digestion. Digestion is needed to convert food into energy. Why the Digestive System is needed? 1. The food that is eaten, needs to be converted into soluble form that can be absorbed by the blood, for distribution as energy throughout the body. 2. The process of digestion includes any chemical change involving breaking down of food into simpler, soluble forms. This enables the soluble form of food to be absorbed through the living membranes of other systems in the body. Enzymes play an important role in digestion. 2 Main parts of the Human Digestive System 5. Egestion 4. Intestinal juices are added in the lower part of the Small intestines. 3. Pancreas is a gland that secretes pancreatic juices. These help to digest carbohydrates, proteins, mineral salts. 4. Small Intestines 5. Large Intestines 6. Anus. 3. Stomach 1. Buccal cavity in the mouth 2. Oesophagus or gullet linking throat to stomach Salivary Glands in the mouth, discharge saliva that is mixed with each morsel of food while chewing. 2. Liver is the largest gland that secretes a digestive juice called bile into the stomach. Bile is needed mainly for digesting fats. 10 x 10 Learning TM Page 4
5 The digestive system 2.2 Liver is the largest gland in the body, located in upper right side of abdomen. It secretes Bile into the stomach through the bile duct. 2.3 Pancreas is another digestive gland located to the left side of the liver. It secretes pancreatic juice. This juice has three enzymes Amylopsin, Trypsin, Steapsin. 1.1 Mouth: lips, tongue and salivary glands Teeth: Incisors, Canine, Premolars, Molars. 20 milk teeth; 28 till 30years of age. 32 thereafter. (1) Alimentary canal is 9 metres long, highly coiled in small intestines. (2) Digestive glands Saliva: is a solvent that stimulates the taste buds, and moistens and lubricates food to help in swallowing Food particles are formed as bolus for swallowing in a mass Stomach is the muscular bag part of the Alimentary canal, at the end of the oesophagus tube, and opens below in to the small intestines.. Enzyme ptyalin converts starch into Maltos 1.3 Oesophagus is the tube connecting the mouth to the stomach. Peristalisis is a wave of constriction caused by the circular muscles of the gut pushing the food along the Oesophagus. 2.1 Three salivary glands : (a) parotid below each ear; (b sub mandibular in lower jaw; (c) sublingual : below the tongue Structure of tooth: a) Crown above the gum and neck. Crown is made of Enamel, and neck and below is made of Dentine. Cement fixes the tooth, and Pulp is the central space in the tooth. 4 Exercises at the end of Chapter 2 1. Fill in the blanks: 1.1 The main steps of nutrition in humans are ingestion, digestion, absorption, assimilation and egestion. 1.2 The largest gland in the human body is the Liver. 1.3 The stomach releases hydrochloric acid and digestive juices which act on food. 1.4 The inner wall of the small intestine has many finger like outgrowths called villi. 1.5 Amoeba digests its food in the food vocuole. 2. Mark T if the statement is true and F if it is false: (a) Digestion of starch starts in the stomach. (False) (b) The tongue helps in mixing food with saliva. (True) (c) The gall bladder temporarily stores bile. (True) (d) The ruminants bring back swallowed grass into their mouth and chew it for some time. (True ) 10 x 10 Learning TM Page 5
6 3. Tick mark the correct answer in each of the following: Here the correct answer is indicated in colour a) Fat is completely digested in the (i) stomach (ii) mouth (iii) small intestine (iv) large intestine b) Water from the undigested food is absorbed mainly in the (i) stomach (ii) food pipe (iii) small intestine (iv) large intestine 4. Match the items of Column I with those given in Column II: Answer: The correct match is as follows: Column I Food components Carbohydrates Proteins Fats Column II Product(s) of digestion Sugar Amino acids Fatty acids and glycerol 5. What are villi? What is their location and function? Answer: Villi are finger like outgrowth in the inner lining of the small intestines. Their function is to increase the surface area of intestines, and to absorb the digested food into the blood stream. 6. Where is the bile produced? Which component of the food does it help to digest? Answer. The bile is produced in the liver. It helps in the digestion of fats in the food. 7. Name the type of carbohydrate that can be digested by ruminants but not by humans. Give the reason also. Answer. Cellulose is a type of carbohydrate found only in grass. Humans cannot digest it as their digestive system does not have the special bacteria that helps to digest cellulose. 10 x 10 Learning TM Page 6
7 Only ruminants have the bacteria and the special sac like structure called Rumen. The grass grazed by the ruminants is partially chewed. It gets collected in the rumen. There digested further by the special bacteria and turned into cud. Later the cud returns to the mouth and is chewed further by the ruminant. Then it goes to the small intestine to be absorbed. 8. Why do we get instant energy from glucose? Answer. Glucose is similar to fruit sugar found in fruits. It is absorbed quickly in to the blood stream after very little digestion, because it is in simple form and needs no breaking up into simpler units. Therefore, it is able to provide instant energy. 9. Which part of the digestive canal is involved in: a) absorption of food = Small intestines. b) chewing of food = bucca cavity. c) killing of bacteria = stomach. d) complete digestion of food = Small intestines. e) formation of faeces = Large intestines. 10. Write one similarity and one difference between the nutrition in amoeba and human beings. Answer. The nutrition in amoeba and human beings is similar in the process that the food is broken into simpler form and absorbed, and the undigested residue is egested. One difference is that humans have a formal structure of glands and body parts that are involved in the process of nutrition. The amoeba has no such structure. Whenever a food particle comes near it, it extends out a pseudopodia around the particle to engulf it. Therefore, it is informal in its nutrition structure. 11. Match the items of Column I with suitable items in Column II Column I Column II Salivary gland Stomach Saliva secretion Acid release 10 x 10 Learning TM Page 7
8 Liver Rectum Small intestine Large intestine Bile juice secretion Release of faeces Digestion is completed Storage of undigested food 10 x 10 Learning TM Page 8
2 NUTRITION IN ANIMALS
2 NUTRITION IN ANIMALS TEXTBOOK QUESTIONS AND THEIR ANSWERS Q.1. You have studied in class VI that food consists of many components. Try to recall and list them below : Ans. 1. Carbohydrates 2. Fats 3.
More information2 NUTRITION IN ANIMALS
2 NUTRITION IN ANIMALS Q.1. You have studied in class VI that food consists of many components. Try to recall and list them below : Ans. 1. Carbohydrates 2. Fats 3. Proteins 4. Minerals 5. Vitamins 6.
More informationB4 NUTRITION 4.3 Animal Nutrition
B4 NUTRITION 4.3 Animal Nutrition 1. State the term balanced diet & describe how balanced diet is related to age, sex & activity of an individual. Balanced diet: A diet that contains all the main nutrients
More informationHUMAN NUTRITION 08 MAY 2013
HUMAN NUTRITION 08 MAY 2013 Lesson Description In this lesson, we: Study the structure of the human digestive system Look at the processes used in the human digestive system Look at the two different types
More informationHuman Nutrition (IGCSE Biology Syllabus )
Human Nutrition (IGCSE Biology Syllabus 2016-2018) o Balanced diet: getting all the right nutrients in correct proportions o Diet related to: - Age - Gender - Activity - Pregnant women o Malnutrition:
More informationCIE Biology GCSE 7: Human nutrition
CIE Biology GCSE 7: Human nutrition Notes Humans need many different nutrients to survive. To receive these nutrients in the correct quantities, a balanced diet must be eaten. A balanced diet includes
More informationEnamel Dentine Pulp cavity nerves & blood vessels Gums & Bone Crown & root. Tooth type and job. Why do humans have more than one type of tooth?
Tooth type and job Enamel Dentine Pulp cavity nerves & blood vessels Gums & Bone Crown & root Be able to sketch & label this Tooth type and job Why do humans have more than one type of tooth? Omnivores
More informationUnit 6L.4: Teeth and Eating
Unit 6L.4: Teeth and Eating Types of teeth Preventing tooth decay Dentition of other animals Digestive system By the end of this unit you should: Know the structure, function and care of the human teeth.
More informationDigestion. I. What is digestion? II. Enzymes involved in digestion
Digestion I. What is digestion? Digestion is the breakdown of large, insoluble food molecules into small, soluble food molecules so that they can be absorbed into the bloodstream. Large food molecules
More informationCh 7 Nutrition in humans
Ch 7 Nutrition in humans Think about (Ch 7, p.2) 1. The stomach churns food into smaller pieces physically. The stomach wall secretes proteases to chemically digest proteins. It also releases hydrochloric
More information2.1 DIFFERENT WAYS OF TAKING FOOD
2 Nutrition in Animals You have learnt in Chapter 1 that plants can prepare their own food by the process of photosynthesis but animals cannot. Animals get their food from plants, either directly by eating
More informationYou have learnt in Chapter 1 that
2 Nutrition in Animals You have learnt in Chapter 1 that plants can prepare their own food by the process of photosynthesis but animals cannot. Animals get their food from plants, either directly by eating
More informationThe Digestive System
The Digestive System Key words Pharynx oesophagus stomach intestine epiglottis gall bladder Pancreas peristalsis liver enzyme rectum sphincter Pyloric duodenum jejunum ileum bile lipase Amylase trypsin
More informationHuman Digestion. Junior Science
Human Digestion Junior Science True or False The word stomach comes from the Greek meaning Throat. Butterflies in the stomach have nothing to do with the stomach. It is possible to live without your stomach.
More information7.4 Digestion. Highlight the definition of mechanical digestion.
7.4 Digestion Digestion is the breakdown of large, insoluble food molecules into small, water-soluble food molecules so that they can be absorbed into the bloodstream. The large food molecules are starch,
More informationName Date Class. 2. Is the following sentence true or false? Food is required for the body to. maintain homeostasis, keeping a steady internal state.
CHAPTER 11 FOOD AND DIGESTION SECTION 11 1 Food and Energy (pages 370-380) This section tells about the six nutrients needed by the body. It also describes the Food Guide Pyramid and how to read labels
More informationDigestive System. Why do we need to eat? Growth Maintenance (repair tissue) Energy
Digestive System Why do we need to eat? Growth Maintenance (repair tissue) Energy Nutrients Nutrient = chemical that must be obtained by an organism from it s environment in order to survive; nutrients
More informationThe Digestive System. Prepares food for use by all body cells.
The Digestive System Prepares food for use by all body cells. Digestion The chemical breakdown of complex biological molecules into their component parts. Lipids to fatty acids Proteins to individual amino
More informationHuman Biology. Digestive System
Human Biology Digestive System Digestion - Defined Prepares food for use by all body cells The physical and/or chemical breakdown of food Did you know: the average person eats more than 500kg of food per
More informationThe Digestive Process Begins
Name Date Class The Digestive Process Begins This section explains what the digestive system does and describes the functions of the mouth, the esophagus, and the stomach. Use Target Reading Skills Before
More informationThe process by which nutrient molecules pass through the wall of your digestive system into your blood. ABSORPTION AS RELATED TO DIGESTION
ABSORPTION AS RELATED TO DIGESTION The process by which nutrient molecules pass through the wall of your digestive system into your blood. 3 FUNCTIONS OF DIGESTION Breaks down food into molecules the body
More informationDigestion & The Alimentary Canal
For more awesome GSE and level resources, visit us at www.savemyexams.co.uk/ igestion & The limentary anal Question Paper Level Subject Exam oard Topic Sub Topic ooklet O Level iology ambridge International
More informationHuman Digestive System
3.3.4 Human Digestive System Need to know The functions of the main parts of the alimentary canal and the associated glands Function of teeth. The human dental formula Role of mechanical digestion and
More informationDigestive System. How your body obtains nutrients. Wednesday, March 2, 16
Digestive System How your body obtains nutrients Vocabulary Ingestion: food enters the system Physical and enzymatic breakdown begins Digestion: Further breakdown Chemical/enzymatic Vocabulary Absorption:
More informationNutrition. Why do humans need food? How do some animals get their food? ROUGHAGE NUTRIENTS. Animals make energy available using:
Nutrition the activities by which organisms Why do humans need food? Animals make energy available using: obtain and process material needed for energy, growth, repair, and to maintain homeostasis humans
More informationChapter 21 NUTRITION AND DIGESTION
Chapter 21 NUTRITION AND DIGESTION Stages of Food Processing 1. Ingestion: The act of eating. Usually involves placing food in mouth or oral cavity. 2. Digestion: Macromolecules in food (fats, proteins,
More informationAssessment Schedule 2015 Demonstrate understanding of biological ideas relating to a mammal(s) as a consumer(s) (90929)
NCEA Level 1 Biology (90929) 2015 page 1 of 7 Assessment Schedule 2015 Demonstrate understanding of biological relating to a mammal(s) as a consumer(s) (90929) Evidence Statement ONE NØ N1 N2 A3 A4 M5
More informationUNIT 3. DIGESTIVE AND RESPIRATORY SYSTEM.
1 UNIT 3. DIGESTIVE AND RESPIRATORY SYSTEM. 2 1. DIGESTIVE SYSTEM 1) Which are the relationships between cellular respiration and the systems that perform nutrition in human body? Digestive system processes
More informationHOLIDAY HOMEWORK - CLASS VII BIOLOGY
HOLIDAY HOMEWORK - CLASS VII Respiratory System Vocabulary BIOLOGY Instructions: Use the word bank to complete each statement about the respiratory system. Word Bank: alveoli; bronchiole; carbon dioxide;
More informationTHE DIGESTIVE SYSTEM
THE DIGESTIVE SYSTEM Composed of two parts: 1. 2. There are 4 main parts of digestion: 1. Ingestion: 2. Digestion: a. Mechanical Digestion: Example: b. Chemical Digestion: Example: 3. Absorption: 4. Egestion:
More informationAFTER mechanical digestion, the pieces of food are still to be used by. broken down. the cells. They MUST be EVEN MORE!!!!!!
Chemical Digestion ***ANSWERS**** Name Period Date AFTER mechanical digestion, the pieces of food are still to be used by the cells. They MUST be EVEN MORE!!!!!! Special
More informationBiology 20: Digestive System Did you get it? Questions and Answers
Biology 20: Digestive System Did you get it? Questions and Answers Mouth 1. What is the purpose of chewing? a. break food into smaller pieces so there is a greater SA for chemicals to work on. 2. Salivary
More informationAll organisms must obtain and process essential nutrients (food) *** Exception: Venus Fly Traps undergo photosynthesis but needs source of nitrogen
All organisms must obtain and process essential nutrients (food) AUTOTROPHS self feeder makes their own food eg. Plants do not require a digestive tract *** Exception: Venus Fly Traps undergo photosynthesis
More informationKRISHNA TEJA PHARMACY COLLEGE HUMAN ANATOMY AND PHYSIOLOGY. DIGESTIVE SYSTEM Dr.B.Jyothi
KRISHNA TEJA PHARMACY COLLEGE HUMAN ANATOMY AND PHYSIOLOGY DIGESTIVE SYSTEM Dr.B.Jyothi Prof, Dept. Of Pharmacology KTPC The Digestive System Food undergoes six major processes: 1. Ingestion : process
More informationTopic 6: Human Physiology
Topic 6: Human Physiology 6.1 Digestion and Absorption D.1 Human Nutrition D.2 Digestion Essential Understandings: The structure of the digestive system allows it to move, digest, and absorb food. A balanced
More informationDigestive System. Digestive System. Digestion is the process of reducing food to small molecules that can be absorbed into the body.
Digestive System Digestion is the process of reducing food to small molecules that can be absorbed into the body. 2 Types of Digestion Mechanical digestion physical breakdown of food into small particles
More informationDigestion is a process in which the complex food we eat is broken down in to simple, soluble, substances which our body is able to use.
KEY POINTS We eat different kinds of food to get energy and to grow well. The food we eat cannot be used by the body as it is. It has to be broken down in to simpler and soluble from that the body can
More informationDigestive System. Unit 6.11 (6 th Edition) Chapter 7.11 (7 th Edition)
Digestive System Unit 6.11 (6 th Edition) Chapter 7.11 (7 th Edition) 1 Learning Objectives Identify the major organs of the digestive system. Explain the locations and functions of three organs in the
More informationChapter 8: Digestion. Structure and Functions of Digestive Organs Macronutrients Digestive Enzymes
Chapter 8: Digestion Structure and Functions of Digestive Organs Macronutrients Digestive Enzymes What organisms need Digestion? Heterotrophs - rely on ingestion of organic molecules for production of
More informationORGANS OF THE DIGESTIVE SYSTEM
ORGANS OF THE DIGESTIVE SYSTEM OBJECTIVES: 1. List and describe the major activities of the digestive system. 2. Identify and give the functions of the organs in and along the digestive tract. MAJOR ACTIVITIES
More informationDIGESTION SBI 3C: NOVEMBER 2010
DIGESTION SBI 3C: NOVEMBER 2010 DIAGRAM OF DIGESTIVE SYSTEM: Mouth Esophagus Liver Gallbladder Large Intestine Appendix Stomach Pancreas Small Intestine Rectum Anus STAGES OF DIGESTION: 1. INGESTION Taking
More informationWhat is Digestion? The break down of food into molecules that are small enough to be absorbed and used by the body
Digestive System What is Digestion? The break down of food into molecules that are small enough to be absorbed and used by the body What is Digestion? This involves: Ingestion and propulsion of food along
More informationAssessment Schedule 2017 Biology: Demonstrate understanding of biological ideas relating to a mammal(s) as a consumer(s) (90929)
NCEA Level 1 Biology (90929) 2017 page 1 of 6 Assessment Schedule 2017 Biology: Demonstrate understanding of biological ideas relating to a mammal(s) as a consumer(s) (90929) Evidence Statement QUESTION
More information1 ANIMALS Digestive System Oral Cavity and Esophagus.notebook January 06, 2016
The Human Digestive System 1 The Human Digestive System 2 You are a tube inside a tube 3 The Digestive System The Four Stages of Food Processing 1. Ingestion the taking in or eating of food 2. Digestion
More information1. Three Main Functions. Chapter 19: 2. Two Groups of digestive organs. 2. Two Groups of digestive organs. 1. The Teeth 5/18/2015
1. Three Main Functions Chapter 19: General Structure and Function of the Digestive System Digestion-breakdown of food into small particles for transport to blood Absorption- into bloodstream to take to
More informationObjective 4- Digestion
Objective 4- Digestion 1. Describe why cells require nutrients Supply energy for metabolism (cell activities), matter for synthesis of new materials, cell reproduction, secretion and to regulate cell processes
More informationLesson Overview The Digestive System
30.3 THINK ABOUT IT The only system in the body that food actually enters is the digestive system. So how does food get to the rest of the body after the process of digestion? Functions of the Digestive
More informationPPL2O Human Digestion The human digestive system is a complex process that consists of breaking down large organic masses into smaller particles that
PPL2O Human Digestion The human digestive system is a complex process that consists of breaking down large organic masses into smaller particles that the body can absorb and use. The breakdown of the nutrients
More informationDigestive System. Science 7 HMS 2015
Digestive System Science 7 HMS 2015 ??? What is the role of the digestive system? 1. Breaks down food into molecules the body can use 2. Molecules are absorbed into the blood stream to be carried to the
More informationChapter 15 Food and Digestion
Chapter 15 Food and Digestion 15.1A Food and Energy Functions of Nutrients 1. 2. 3. 4. Calories = amt. of energy in food RDA depends on age, gender, size and activity level Types of Nutrients (includes
More informationDigestive System. Physical and breakdown begins. : Further breakdown, chemical/enzymatic
SBI 3C Digestive System : food enters the system Physical and breakdown begins : Further breakdown, chemical/enzymatic : Nutrients enter system, delivered to tissues of the body Elimination of Waste (
More informationThe Digestive System. 1. The Mouth. 2. Epiglottis and Esophagus. 3. The Stomach. 4. The Small Intestine
The Digestive System Name: The digestive system has 3 main functions. First, it breaks down food into smaller nutrients that the body can use. Secondly, these nutrients are absorbed into the blood. Thirdly,
More information1 The Digestive System
CHAPTER 24 1 The Digestive System SECTION The Digestive and Urinary Systems BEFORE YOU READ After you read this section, you should be able to answer these questions: What are the parts of the digestive
More information>>> FOCUS. Context. Digestion. The human digestive system
Context All living organisms need nutrients, which provide materials and energy for survival. These nutrients need to be broken down before they can be used by cells. Plants make their own food using energy
More informationMonday, October Pick up a little man from the front table. Color and glue it into your journal on the next available page.
1. Pick up a little man from the front table. Color and glue it into your journal on the next available page. 2. Answer the following question on the same page: How do proteins, lipids and carbs impact
More informationThe Digestive System
Digestive System 1 Name The Digestive System Purpose: To describe how food moves through the digestive system. To identify the parts of the digestive system. Background Information: Food provides us with
More informationDigestive System Lecture Notes Read Ch 14; review questions start on page 477 S/A # 4, 5, 7, 8, 10, 11, 12, 13, 16, 17, 19, 20, 21, 22, 26, 35
The PRINCIPLE structure of the digestive system is the Alimentary Canal (Gastrointestinal Tract) = hollow tube much like a hallway in a home. I. Functions of the Digestive System a. Ingestion: Putting
More informationDigestive System 7/15/2015. Outline Digestive System. Digestive System
Digestive System Biology 105 Lecture 18 Chapter 15 Outline Digestive System I. Functions II. Layers of the GI tract III. Major parts: mouth, pharynx, esophagus, stomach, small intestine, large intestine,
More informationUnderstanding Food and Nutrition
Understanding Food and Nutrition Dr Joan Webster-Gandy Published by Family Doctor Publications Limited in association with the British Medical Association IMPORTANT NOTICE This book is intended not as
More informationBiology 12 - The Digestive System - Chapter Notes
Biology 12 - The Digestive System - Chapter Notes In a nutshell... The body uses a variety of small molecules (amino acids, fatty acids, glucose) for its metabolic needs. Food is mechanically and chemically
More informationAt the end of this lesson, you should be able to:
Digestion Learning Objectives At the end of this lesson, you should be able to: Enzymes Explain enzyme action in terms of the lock and key hypothesis Explain the effects of temperature and ph on the rate
More informationChapter 15 Food and Digestion
Chapter 15 Food and Digestion Activity: Use Qualitative Observations (5 senses) to describe: What happens when you see candy? How does it smell? How do you chomp it into smaller pieces or swallow candy
More informationTopic 10: Nutrition & Digestion Ch. 41. Nutritional Requirements pp Essential Amino Acids p.939. Essential Fatty Acids p.
Topic 10: Nutrition & Digestion Ch. 41 Nutritional Requirements pp.939-941 Diets for animals must satisfy three needs : 1. Metabolic fuel Energy needed to do cellular work. E.g. glucose 2. Materials for
More informationThe digestion system and nutrient requirements
Principles of nutrition 1 TechNote 1 The digestion system and nutrient requirements IN THIS TECHNOTE 1.1 Functions of the ruminant digestive system 1.2 Requirements of the dairy cow 1.3 Further reading
More informationAFTER mechanical digestion, the pieces of food are still to be used by broken down. the cells. They MUST be EVEN MORE!!!!!!
Chemical Digestion Name Period Date AFTER mechanical digestion, the pieces of food are still to be used by broken down the cells. They MUST be EVEN MORE!!!!!! Special
More information10/23/2013 ANIMAL NUTRITION ANIMAL NUTRITION ESSENTIAL NUTRIENTS AN ANIMAL S DIET MUST STUPPLY: AMINO ACIDS
ANIMAL NUTRITION Food is taken in, taken apart, and taken up in the process of animal nutrition In general, animals fall into three categories: Herbivores Carnivores Omnivores ANIMAL NUTRITION Chapter
More informationANATOMY & PHYSIOLOGY ONLINE COURSE - SESSION 13 THE DIGESTIVE SYSTEM
ANATOMY & PHYSIOLOGY ONLINE COURSE - SESSION 13 THE DIGESTIVE SYSTEM The digestive system also known as the alimentary canal or gastrointestinal tract consists of a series of hollow organs joined in a
More informationThe Digestive System (11.1 and 11.2) Mar 27 9:53 AM. Section 11.1 The chemical Foundation of Digestion
Chapter 11 The Digestive System (11.1 and 11.2) Biology 2201 Section 11.1 The chemical Foundation of Digestion All organisms need food, and all foods contain nutrients. Nutrients are the substances that
More informationNutrition, part 2. Because 1 part isn t enough!
Nutrition, part 2 Because 1 part isn t enough! 4. Calories and Caloric Intake Calories per gram of our Macro and Micro nutrients Macro Carbohydrates: 4 cal/g Fats: 9 cal/g Proteins: 4 cal/g Micro Vitamins:
More informationChapter 11 The Digestive System. Biology 2201
Chapter 11 The Digestive System Biology 2201 Section 11.1 The chemical Foundation of Digestion All organisms need food, and all foods contain nutrients. Nutrients are the substances that provide the energy
More informationPrimary Function. 1. Ingestion: food enters the system
Digestive System Primary Function 1. Ingestion: food enters the system - Physical and enzymatic breakdown begins 2. Digestion: Further breakdown - Chemical/enzymatic 3. Absorption: Nutrients enter circulatory
More information4/8/16. Digestive System. When you are hungry it is because your brain receives a signal from your cells that they need energy
When you are hungry it is because your brain receives a signal from your cells that they need energy Section 1 Digestive System A group of organs that work together to digest food so that it can be used
More informationBiology: 4. The Digestive System
Biology: 4. The Digestive System Please remember to photocopy 4 pages onto one sheet by going A3 A4 and using back to back on the photocopier OB6 OB7 OB8 Syllabus Identify and locate the major parts of
More informationNURSE-UP DIGESTIVE SYSTEM AKA G.I. SYSTEM
NURSE-UP DIGESTIVE SYSTEM AKA G.I. SYSTEM The digestive system is used for breaking down food into nutrients which then pass into the circulatory system and are taken to where they are needed in the body.
More informationSNC4M The Digestive System
SNC4M The Digestive System What is digestion? Chemical and mechanical breakdown of organic molecules into units small enough for the body to absorb These molecules provide: 1. Energy resources 2. Essential
More information11/1/2008. The Digestive System. April 2008
Chapter 11 The Digestive System Biology 2201 April 2008 Section 11.1 The chemical Foundation of Digestion All organisms need food, and all foods contain nutrients. Nutrients are the substances that provide
More informationThe Human Digestive Tract
The Human Digestive Tract The Mouth salivary glands (parotid, sublingual, submaxillary) - produces saliva --->lubricate food ---> dissolves food particles ---> allows us to taste food --->contains amylase
More informationDigestive System. 1) Learn about the major organs in the digestive system. 2) Learn the locations of the major organs in the digestive system
Digestive System 1) Learn about the major organs in the digestive system 2) Learn the locations of the major organs in the digestive system Teachers' notes Subject Topic Title Grade(s) Cross curricular
More informationTHE HUMAN DIGESTIVE SYSTEM
THE HUMAN DIGESTIVE SYSTEM The Human Digestive System We will divide the Human Digestive System into two main topics: 1. Nutrition and what our body needs 2. How the human body breaks down food and makes
More information10/18/2017 ANIMAL NUTRITION ANIMAL NUTRITION ESSENTIAL NUTRIENTS AN ANIMAL S DIET MUST STUPPLY: AMINO ACIDS
ANIMAL NUTRITION Food is taken in, taken apart, and taken up in the process of animal nutrition In general, animals fall into three categories: Herbivores Carnivores Omnivores ANIMAL NUTRITION Chapter
More informationUnit Title: Digestive Systems. Instructor: Ms. Hutchinson. Objectives: After completion of this unit of instruction, students will:
Course: Livestock Production TEKS: 130.3(c)(5)(a) Unit Title: Digestive Systems Instructor: Ms. Hutchinson Objectives: After completion of this unit of instruction, students will: A. Define what a digestive
More informationThe Digestive System and Body Metabolism
14 PART C The Digestive System and Body Metabolism PowerPoint Lecture Slide Presentation by Jerry L. Cook, Sam Houston University ESSENTIALS OF HUMAN ANATOMY & PHYSIOLOGY EIGHTH EDITION ELAINE N. MARIEB
More informationDigestive System. Science 7 HMS 2016
Digestive System Science 7 HMS 2016 ??? What is the role of the digestive system? 1. Breaks down food into molecules the body can use 2. Molecules are absorbed into the blood stream to be carried to the
More informationThe Digestive System: Basics. WedNesday October 24th All organisms need energy to survive. > Use energy to reproduce, grow, and repair
WedNesday October 24th 2012 QU: What would happen if an organism stopped eating? OBJ: Digestive System Notes All about hydrolysis and surface area Digestive System All organisms need energy to survive
More informationDigestive System Practice Test
Name: Class Period: Section 1: Digestive System Practice Test Directions: Match the items in Column B to the definitions or explanations offered in Column A. Write the matching letter, on the line provided
More information3/16/2016. Food--mixture of carbohydrates, proteins, and lipids
Food--mixture of carbohydrates, proteins, and lipids Food being broken down into small molecules Takes place in the alimentary canal Complete digestive system 4 layers of tissue (in book) Lumen 1) MECHANICAL/PHYSICAL--
More informationThe Digestive System. Parts and Functions
The Digestive System Parts and Functions Mechanical Digestion A process of digestion in which food is cut, torn, mashed, and churned into smaller bits. This process starts in the mouth and ends in the
More informationDigestion and Absorption. Food:
Digestion and Absorption Food: Food is a basic requirement of all living beings. Food provides energy for different activities in the body. Food also provides organic materials for growth and repair. Carbohydrates,
More informatione. Undigested material is compacted and stored until the colon is full. When the colon is full, a signal to empty it is sent by sensors in the walls
Digestive System 1. General a. Animals obtain energy by breaking food molecules into smaller pieces. b. The basic fuel molecules are amino acids, lipids and sugars c. Digestion is the chemical breakdown
More informationPurpose To reduce the size of large pieces of food to small molecules that can be absorbed into the blood stream and eventually into cells.
Purpose To reduce the size of large pieces of food to small molecules that can be absorbed into the blood stream and eventually into cells. Cells are then able to maintain homeostasis 6 main components
More informationTwo main groups Alimentary canal continuous coiled hollow tube Accessory digestive organs
Digestion Breakdown of ingested food Absorption of nutrients into the blood Metabolism Production of cellular energy (ATP) Constructive and degradative cellular activities Two main groups Alimentary canal
More informationAnimal Nutrition Human Digestion
Animal Nutrition Human Digestion 2006-2007 What do animals need to live? Animals make energy using: u food food u oxygen Animals build bodies using: u food for raw materials amino acids, sugars, O fats,
More informationChapter 2: Human Body Systems Work Independently and Together
Chapter 2: Human Body Systems Work Independently and Together 2.1 Body Systems Body systems Are made up of parts that work together as a whole Are connected to one or more other Will not function well
More informationNutrition. Autotrophs. plants, some protists & bacteria producers
Nutrition Autotrophs plants, some protists & bacteria producers Nutrition Heterotrophs animals, fungi, some protists & bacteria consumers Animal Nutrition Most obtain food by ingestion take in their food
More informationLecture 2 Digestive System &Nutrition Lecture 3 1. Introduction 2. Digestive System 3. Nutrition Basics
Lecture 2 Digestive System &Nutrition 1 Lecture 3 1. Introduction 2. Digestive System 3. Nutrition Basics 2 1 Introduction Some Ecology 3 Mr. Sun 4 2 Nuclear Fusion 5 Light energy from Sun radiates across
More informationANIMAL NUTRITION 24 APRIL 2013
ANIMAL NUTRITION 24 APRIL 2013 Lesson Description In this lesson, we: Look at nutrition in various animals o Herbivores, Carnivores and Omnivores Study the structure of the human digestive system Look
More informationLearning Targets. The Gastrointestinal (GI) Tract. Also known as the alimentary canal. Hollow series of organs that food passes through
Digestion the multistep process of breaking down food into molecules the body can use Learning Targets Describe the path food takes through the digestive system. Identify the major organs of the digestive
More information* Produces various chemicals to break. down the food. * Filters out harmful substances * Gets rid of solid wastes
* * Produces various chemicals to break down the food * Filters out harmful substances * Gets rid of solid wastes * *Mouth *Pharynx *Oesophagus *Stomach *Small and large intestines * *Changes the physical
More informationWebsite: websites.rcc.edu/halama Lecture 2 Digestive System &Nutrition
Website: websites.rcc.edu/halama Lecture 2 Digestive System &Nutrition 2 1 Lecture 3 1. Introduction 2. Digestive System 3. Nutrition Basics 3 Introduction Some Ecology 4 2 Mr. Sun 5 Nuclear Fusion 6 3
More informationAngel International School - Manipay 2 nd Term Examination March, 2018 Biology
Grade 07 Angel International School - Manipay 2 nd Term Examination March, 2018 Duration: 2.00 Hours 1) Underline the correct answer: Part 1 1) Given below are some adapative features of plants: (i) It
More information