Biology Cellular Respiration Neatly answer all questions completely for credit. Show all work.
|
|
- Rosalyn Terry
- 5 years ago
- Views:
Transcription
1 Teacher Notes Time: 45 minutes (plus 15 minutes for teacher preparation over two days) Student Difficult: moderate Purpose: Investigate cellular respiration in dormant and germinated seeds Overview: Students will compare the relative volume of oxygen used by dormant and germinated seeds. They will: prepare test-tube respirometers with dormant and germinated seeds measure the height of water that rises in the test tubes in response to the partial vacuum created by oxygen being consumed Lab Preparation: Use large, fresh seeds (peas or beans). Soak the seeds for hours. Lab Management: Remind students that respiration uses O 2 and forms CO 2. The pressure due to CO 2 might cancel out any change due to the take-up of O 2. To solve this problem, potassium hydroxide is added to combine with CO 2 to form insoluble potassium carbonate. Do not to remove the tubes from the beaker while measuring water height. Students should measure the height of the water in the tubes after inverting them and again the next day. Calculate any differences in height, if any. Setups should be stored at room temperature overnight. Post-Lab Discussion: Discuss the change in volume of gas in the tubes as indicative of the amount of O 2 consumed. Ask, Why did water move up into the tube? Water rises due to the partial vacuum created by oxygen consumption. Answers: Analyze and Conclude 1) A bar graph is best; check students work. 2) Oxygen consumption was measured by the height of the water in the tubes. Water level in the tube with germinated seeds was greater than that in the tube with dormant seeds. Dormant seeds respire very slowly. 3) Tube 3 is a control. It may show a slight rise in water level due to atmospheric pressure changes. 4) The volume of gas and corresponding air pressure in the test tubes decreased with increasing cellular respiration, that is, with increasing consumption of O 2. 5) Water level would be higher after one day. After one week, the germinated seeds may die because there is no CO 2 in the tube for photosynthesis. Cells and Energy 1 Overview of Cellular Respiration
2 Cellular Respiration Plant cells use cellular respiration to make ATP from the sugars they produce during photosynthesis. During cellular respiration, carbon dioxide (CO 2 ) is formed as oxygen (O 2 ) is used. In this experiment, you will compare cellular respiration rates in dormant (dry) and germinated (pre-soaked) seeds. Problem: How do respiration rates compare in dormant and germinated seeds? Process Skills: Materials: Procedure: Measuring Graphing Collecting Data Analyzing Data 3 test tubes marking pen 6 pre-soaked seeds 6 dry seeds 6 cotton plugs 1.5 teaspoons potassium hydroxide (KOH) powder rubber band 100-mL beaker 25-mL colored water metric ruler 1) Label the three test tubes as the following: a. Tube 1: pre-soaked seeds; Tube 2: dry seeds; Tube 3: no seeds 2) Layer into the test tubes the following materials. Be sure that the layers of materials are compact, but not too tight. a. Tube 1: pre-soaked seeds, cotton plug, 1/2 tsp. potassium hydroxide, cotton plug b. Tube 2: dry seeds, cotton plug, 1/2 tsp. potassium hydroxide, cotton plug c. Tube 3: cotton plug, 1/2 tsp. potassium hydroxide, cotton plug d. Caution: Potassium hydroxide is a strong base; avoid contact with eyes, skin, and clothing. 3) Use the rubber band to hold the three test tubes together. 4) Pour the 25 ml of colored water into the beaker. Cells and Energy 2 Overview of Cellular Respiration
3 5) Invert the tubes and place them in the beaker as shown below. Wait 15 minutes. 6) Using a ruler, measure the distance (in cm) that the colored water travels up each of the three test tubes. a. Record your results is the table below. TABLE 1. CELLULAR RESPIRATION IN DORMANT AND GERMINATED SEEDS Test Tube Distance Colored Water Travels (cm) 1. pre-soaked seeds 2. dry seeds 3. no seeds Cells and Energy 3 Overview of Cellular Respiration
4 Analyze and Conclude 1) Analyze Choose the type of graph that best represents the data. Construct your graph. 2) Analyze Describe your observations and measurements of test tubes 1 and 2. What do the data show? Explain why differences between the two tubes might exist. Cells and Energy 4 Overview of Cellular Respiration
5 3) Evaluate What is the function of test tube 3 in the experiment? What do the measurements from this test tube demonstrate? 4) Infer Potassium hydroxide reacts with, and removes, carbon dioxide from the air. Why might cellular respiration be responsible for water rising into some of the test tubes? 5) Apply Suppose this experiment were allowed to run an additional day. What might you expect to encounter? What about after a week? Cells and Energy 5 Overview of Cellular Respiration
CarolinaTM Cell Respiration for AP Biology
Student Guide CarolinaTM Cell Respiration for AP Biology Background You are probably familiar with photosynthesis, the metabolic process that plants use to harness energy from the sun. But how do plants
More informationChapter 5 MITOCHONDRIA AND RESPIRATION 5-1
Chapter 5 MITOCHONDRIA AND RESPIRATION All organisms must transform energy. This energy is required to maintain a dynamic steady state, homeostasis, and to insure continued survival. As will be discussed
More informationObserving Respiration
Chapter 9 Cellular Respiration Design an Experiment Observing Respiration Introduction Cellular respiration occurs in all living things. During this process, animals take in oxygen and release carbon dioxide
More informationFig In the space below, indicate how these sub-units are joined in a molecule of ATP.
1 (a) Adenosine tri-phosphate (ATP) is an important product of respiration. The ATP molecule is made up of five sub-units, as shown in Fig. 5.1. adenine phosphates O ribose Fig. 5.1 (i) In the space below,
More information2 Answer all the questions. 1 (a) The control of blood glucose is a very important aspect of homeostasis [2]
2 Answer all the questions. 1 (a) The control of blood glucose is a very important aspect of homeostasis. Explain what is meant by the term homeostasis.... [2] Describe how negative feedback is used to
More informationObserving Osmosis Lab
Observing Osmosis Lab Background Information: Molecules are in constant motion, and tend to move from areas of higher concentrations to areas of lower concentrations. Diffusion is defined as the movement
More informationLab 6: Cellular Respiration
Lab 6: Cellular Respiration Metabolism is the sum of all chemical reactions in a living organism. These reactions can be catabolic or anabolic. Anabolic reactions use up energy to actually build complex
More informationOBJECTIVE INTRODUCTION. Biology 3A Laboratory CELLULAR RESPIRATION
Biology 3A Laboratory CELLULAR RESPIRATION OBJECTIVE To study anaerobic and aerobic respiration. To determine the amount of oxygen consumed during aerobic respiration. To determine the amount of carbon
More informationCellular Respiration and Photosynthesis Virtual Lab
Cellular Respiration and Photosynthesis Virtual Lab http://glencoe.mcgraw-hill.com/sites/0078695104/student_view0/unit2/chapter8/virtual_labs.html# 1. Go to the above website. 2. Read and follow the directions
More informationReview Guide for BIOL 150 Lab Exam 1 Montgomery College; Rockville Campus
Review Guide for BIOL 150 Lab Exam 1 Montgomery College; Rockville Campus Please note that questions in this document are a guide to prepare for Lab Exam 1. None of the questions are going to be copied
More informationcellular respiration
Name: Date: 1. The energy found in ATP molecules synthesized in animal cells comes directly from A. sunlight B. organic molecules C. minerals D. inorganic molecules 2. A green plant is kept in a brightly
More informationGCSE 4471/02 BIOLOGY 2 HIGHER TIER ADDITIONAL SCIENCE/BIOLOGY. P.M. TUESDAY, 12 May hour S PMT. Candidate Number.
Surname Centre Number Candidate Number Other Names 0 GCSE 4471/02 S15-4471-02 ADDITIONAL SCIENCE/BIOLOGY BIOLOGY 2 HIGHER TIER P.M. TUESDAY, 12 May 2015 1 hour For s use Question Maximum Mark Mark Awarded
More informationBurping Yeast: An Investigation of Cellular Respiration
Burping Yeast: An Investigation of Cellular Respiration Student Materials Introduction... 2 Lab Protocol... 4 Data Collection Worksheet... 6 Pre-Lab Questions... 7 Post-Lab Questions and Analysis... 8
More informationCandidate Name Centre Number Candidate Number. FOUNDATION TIER (Grades G-C)
GCSE in ADDITIONAL SCIENCE Specimen Assessment Materials 5 Candidate Name Centre Number Candidate Number 0 GCSE ADDITIONAL SCIENCE FOUNDATION TIER (Grades G-C) BIOLOGY 2 Cells and metabolism, digestion
More informationRevision Question Bank. MCQs [Practical Based Questions]
Revision Question Bank 1. What are phytohormones? 2. Name the part of hindbrain which takes part in regulation of respiration. 3. We suddenly pull our hand when a pin pricks. Name the type of response
More informationUNIVERSITY OF CAMBRIDGE INTERNATIONAL EXAMINATIONS International General Certificate of Secondary Education
*7531216271* UNIVERSITY OF CAMBRIDGE INTERNATIONAL EXAMINATIONS International General Certificate of Secondary Education COMBINED SCIENCE 0653/61 Paper 6 Alternative to Practical October/November 2012
More informationName: Teacher: Ms. Petrakos. Lesson #21 - Cell Transport Diffusion Review
Name: Teacher: Ms. Petrakos Lesson #21 - Cell Transport Diffusion Review Figure 1 Base your answer to the question on the diagram below and on your knowledge of biology. The diagram represents an experimental
More informationCell Biology Sub-Topic (1.6) Respiration
Cell Biology Sub-Topic (1.6) Respiration On completion of this subtopic I will be able to state that: Glucose is a source of energy in the cell. The chemical energy stored in glucose is released by a series
More informationspeed / km per hr (a) Compare the oxygen uptake when the athlete is walking and running at speeds from 6 to 10 km per hour. (3)
1 The graph shows the oxygen uptake for an athlete when walking and running. 80 60 walk run oxygen uptake in cm 3 /kg/min 40 20 0 0 4 8 12 16 20 speed / km per hr (a) Compare the oxygen uptake when the
More informationLAB: DIFFUSION ACROSS A SELECTIVELY PERMEABLE MEMBRANE
LAB: DIFFUSION ACROSS A SELECTIVELY PERMEABLE MEMBRANE NAME: PERIOD: DATE: Building Background Knowledge: 1) SELECTIVELY PERMEABLE MEMBRANE: Every cell is surrounded by a selectively permeable membrane
More informationDescribe how acetylcoenzyme A is formed in the link reaction
Q1.(a) On islands in the Caribbean, there are almost 150 species of lizards belonging to the genus Anolis. Scientists believe that these species evolved from two species found on mainland USA. Explain
More informationTeacher Demo/Student Activity: Limit to Cell Size
SNC2D/2P Tissues, Organs, and Systems of Living Things/Tissues, Organs and Systems Teacher Demo/Student Activity: Limit to Cell Size Topics cell cycle the importance of cell division Timing preparation:
More informationLAB: DIFFUSION ACROSS A SELECTIVELY PERMEABLE MEMBRANE
LAB: DIFFUSION ACROSS A SELECTIVELY PERMEABLE MEMBRANE NAME: PERIOD: DATE: Building Background Knowledge: 1) SELECTIVELY PERMEABLE MEMBRANE: Every cell is surrounded by a selectively permeable membrane
More informationDiffusion across a Selectively Permeable Membrane
Diffusion across a Selectively Permeable Membrane Each cell is surrounded by a selectively permeable cell membrane Cell Membrane which regulates what gets into and out of the cell. A selectively permeable
More informationBiology BLY3H Unit Biology B3 Written Paper Thursday 14 January am to 9.45 am For this paper you must have: Time allowed Instructions all
Centre Number Surname Candidate Number For Examiner s Use Other Names Candidate Signature Examiner s Initials Question Mark General Certificate of Secondary Education Higher Tier January 2010 1 2 Biology
More informationAim 19: Cellular Respiration
1. During the process of cellular respiration, energy is released from A) carbon dioxide B) oxygen atoms C) water molecules D) chemical bonds 2. The energy used to obtain, transfer, and transport materials
More informationThe Great Snail Race
Activity Background Photosynthesis is the process by which plants and other organisms convert light energy from the Sun or other light source into useable, chemical energy stored in a molecule called ATP.
More information1. Arrows A, B, and C in the diagram below represent the processes necessary to make the energy stored in food available for muscle activity.
1. Arrows A, B, and C in the diagram below represent the processes necessary to make the energy stored in food available for muscle activity. The correct sequence of processes represented by A, B, and
More informationA Scientific Investigation What types of food contain starch and protein?1
A Scientific Investigation What types of food contain starch and protein?1 In this activity you will learn about starch and proteins and investigate which types of food contain starch and which types contain
More informationTOXICOLOGY PROTOCOLS PROTOCOL 1. SERIAL DILUTIONS. Objective To make a serial dilution for use in dose/response bioassays.
TOXICOLOGY PROTOCOLS PROTOCOL 1. SERIAL DILUTIONS Objective To make a serial dilution for use in dose/response bioassays. Background The idea behind a bioassay is that the test organism will respond in
More informationBiology. Slide 1 of 39. End Show. Copyright Pearson Prentice Hall
Biology 1 of 39 EQ What is glycolysis? What are the results from the Krebs Cycle and Electron Transport? 2 of 39 9-1 Chemical Pathways Food serves as a source of raw materials for the cells in the body
More information(Figure revised from Johnson and Raven, 2004, Biology, Holt Rinehart and Winston, p. 110)
Alcoholic Fermentation in Yeast Adapted from Alcoholic Fermentation in Yeast Investigation in the School District of Philadelphia Biology Core Curriculum 2011 by Drs. Jennifer Doherty and Ingrid Waldron,
More informationBiology Cell Unit Homework Packet #3
Biology Cell Unit Homework Packet #3 Name DUE: Hour HW #5 Egg Demo Drawings Analysis HW #6 Elodea Drawings lab Analysis HW #7 Cell Questions Membrane and Transport HW #8 Questions / 5 possible points Homework
More informationDiffusion and Osmosis
Diffusion and Osmosis Introduction: In this exercise you will measure diffusion of small molecules through dialysis tubing, an example of a semi permeable membrane. The movement of a solute through a semi
More informationCellular Respiration. Biology Standard B-3.2
Cellular Respiration Biology Standard B-3.2 Warm-UP p. 100 Study for quiz on ATP and Photosynthesis. Agenda: Quiz Cellular Respiration Notes Cellular Respiration Lab Cellular respiration is a process that
More informationTaken From:
OSPI Sample Biology EOC Questions 2012 These are scenarios and items that are aligned with the K-12 Science Learning Standards. These items have not gone through the comprehensive review process that test
More informationEXERCISE Transport Mechanisms in the Body
EXERCISE Transport Mechanisms in the Body 2 OBJECTIVES After completing these activities, you should be able to: Understand the differences between passive and active processes of transport Define diffusion,
More information1st 9 Weeks Test Review Sheet
1st 9 Weeks Test Review Sheet 1. Which two are reactants of photosynthesis? a. glucose and water b. carbon dioxide and water c. glucose and oxygen d. sunlight and ATP energy 2. Photosynthesis makes which
More informationRadish Seed Dose Response Worksheet Teacher Key
Radish Seed Dose Response Worksheet Teacher Key Experiment 1: Radish Seed Dose Response My Calculations: Make a 50% chemical mixture Using dilutions to make all three dilutions (50%, 25%, 12.5%) Hint make
More informationCellular Transport Worksheet
Cellular Transport Worksheet Name Section A: Cell Membrane Structure 1. Label the cell membrane diagram. You ll need to draw lines to some of the structures. **Draw cholesterol molecules in the membrane.**
More informationOCR. Respiration Questions
OCR Respiration Questions 12 4 (a) The first stage in respiration involves the conversion of one molecule of glucose into two molecules of a 3C compound that can enter mitochondria when oxygen is
More informationBiochemical Analysis of Plant Enzymes
EDVOTEK P.O. Box 1232 West Bethesda, MD 20827-1232 The Biotechnology Biochemical Analysis of Plant Enzymes 904 EDVO-Kit # Storage: Store entire experiment in the refrigerator. Experiment Objective: In
More informationThe content assessed by the examination papers and the type of questions are unchanged.
Location Entry Codes As part of CIE s continual commitment to maintaining best practice in assessment, CIE has begun to use different variants of some question papers for our most popular assessments with
More informationTHURSDAY, 5 JANUARY 2017 MORNING 1 hour
Surname Centre Number Candidate Number Other Names 0 GCSE LEGACY 4471/01 W17-4471-01 ADDITIONAL SCIENCE/BIOLOGY BIOLOGY 2 FOUNDATION TIER THURSDAY, 5 JANUARY 2017 MORNING 1 hour For s use Question Maximum
More informationEgg-speriment With a Cell
Name Date Class Cell Structure and Function Standards Investigation Overview S 7.1.a Standards Investigation Egg-speriment With a Cell One of the cell structures you will be learning about is the cell
More informationName: Per. Date: / 71 points MACROMOLECULE LAB: Testing for the Presence of Macromolecules
Name: Per. Date: / 71 points MACROMOLECULE LAB: Testing for the Presence of Macromolecules Introduction: There are four broad classes of macromolecules that can be found in living systems. Each type of
More informationScience Lab List
2010-2011 Science Lab List Science 600 2010 Glynlyon, Inc Released 6-1-10 Table of Contents SCIENCE 600 (2010): UNIT 1 PLANTS... 1 EXPERIMENT: ANACHARIS... 1 EXPERIMENT: SEEDS... 1 EXPERIMENT: DIGESTIVE
More informationDIFFUSON AND OSMOSIS INTRODUCTION diffusion concentration gradient. net osmosis water potential active transport
DIFFUSON AND OSMOSIS NAME DATE INTRODUCTION The life of a cell is dependent on efficiently moving material into and out of the cell across the cell membrane. Raw materials such as oxygen and sugars needed
More informationAdditional Science. Biology BLY2H. (Jan10bly2H01) General Certificate of Secondary Education Higher Tier January Unit Biology B2.
Centre Number Surname Candidate Number For Examiner s Use Other Names Candidate Signature Examiner s Initials Additional Science General Certificate of Secondary Education Higher Tier January 2010 BLY2H
More informationGCSE BIOLOGY. Materials For this paper you must have: a ruler a scientific calculator. Please write clearly in block capitals. Surname.
Please write clearly in block capitals. Centre number Candidate number Surname Forename(s) Candidate signature GCSE BIOLOGY Foundation Tier Paper 1F F Specimen 2018 (set 2) Time allowed: 1 hour 45 minutes
More informationLab 5: Cell Respiration Multiple Choice Questions
Lab 5: Cell Respiration Multiple Choice Questions 1. Within the cell, many chemical reactions that, by themselves, require energy input (have a positive free-energy change) can occur because the reactions
More informationKULLEĠĠ SAN BENEDITTU Secondary School, Kirkop
KULLEĠĠ SAN BENEDITTU Secondary School, Kirkop Mark HALF YEARLY EXAMINATION 2014/2015 Trk 3 FORM 4 BIOLOGY TIME: 1h 30min 4 5 Global Question 1 2 3 4 5 6 7 1 2 3 Mark Max. Mark 6 7 5 12 8 7 10 15 15 15
More informationPomPom SHOOTER. Activity Background: Common Obstructive Lung Disorders:
CAUTION: Students with asthma or other respiratory problems should NOT perform the breathing exercises in this activity because they involve repeated maximal inhalations and exhalations and use of a breathing
More informationCell Diffusion & Permeability: See-Through Eggs Teacher Version
Cell Diffusion & Permeability: See-Through Eggs Teacher Version In this lab, students will learn about the permeability of the cell membrane. By studying the ability of a shell-less egg to absorb various
More information3. Which of the following cannot increase metabolic rate? A. Reading B. Sleeping C. Talking D. Jogging
Topic 4: Enzymes and metabolism 1. An is only required in a small amount because A. its shape is specific. B. it speeds up both forward and backward reactions. C. it is made of proteins. D. it is not consumed
More informationGCSE (9 1) Biology A (Gateway Science) J247/01 Paper 1 (Foundation Tier) Sample Question Paper SPECIMEN
GCSE (9 1) Biology A (Gateway Science) J247/01 Paper 1 (Foundation Tier) Sample Question Paper F Date Morning/Afternoon Time allowed: 1 hour 45 minutes You may use: a scientific or graphical calculator
More information8 LIFE PROCESSES NUTRITION TRANSPORT REGULATION SYNTHESIS EXCRETION GROWTH REPRODUCTION RESPIRATION
8 LIFE PROCESSES NUTRITION REGULATION EXCRETION REPRODUCTION TRANSPORT SYNTHESIS GROWTH RESPIRATION LIFE PROCESSES Nutrition (ingestion, digestion, egestion) 1- Nutrients are used by all living things
More informationWhat are the similarities between this equation for burning glucose and the equation for cellular respiration of glucose when oxygen is available?
Cellular Respiration in Yeast Adapted from Alcoholic Fermentation in Yeast Investigation in the School District of Philadelphia Biology Core Curriculum 2008 by Jennifer Doherty and Dr. Ingrid Waldron,
More informationPassive Transport Lab: Diffusion and Osmosis
Name Date Period Passive Transport Lab: Diffusion and Osmosis OBJECTIVE: Apply your understanding of the processes of diffusion and osmosis to explain observational data. PART A: Starch and Iodine MATERIALS
More informationGCSE 4471/02 BIOLOGY 2 HIGHER TIER ADDITIONAL SCIENCE/BIOLOGY. A.M. TUESDAY, 13 May hour. Candidate Number. Centre Number. Surname.
Surname Centre Number Candidate Number Other Names 0 GCSE 4471/02 ADDITIONAL SCIENCE/BIOLOGY BIOLOGY 2 HIGHER TIER A.M. TUESDAY, 13 May 2014 1 hour For s use Question Maximum Mark Mark Awarded 1. 7 2.
More informationTesting the capacity of biological buffer systems to resist changes in ph By P. H. Meter
Testing the capacity of biological buffer systems to resist changes in ph By P. H. Meter Personal Engagement and Exploration Research Question: How do plant and animal tissues respond to changes in ph?
More informationLiving Environment. Scientific Inquiry Exam
Name: Class: 1. Which elements are present in all organic compounds? 1) nitrogen and carbon 3) hydrogen and oxygen 2) nitrogen and oxygen 4) hydrogen and carbon 2. Which substances are inorganic compounds?
More informationPage 1. Name: 1) State one factor that influences which molecules can pass through the cell membrane of a human cell.
Name: 1) State one factor that influences which molecules can pass through the cell membrane of a human cell. 7670-1 - Page 1 2) Molecules A and B are both organic molecules found in many cells. When tested,
More information1. All cells have a that acts as a between the outside and inside of the cell.
https://www.youtube.com/watch?v=cnbzdcibegy 1. All cells have a that acts as a between the outside and inside of the cell. 1 2. Cell membranes are primarily made of which are large molecules. 3. It is
More informationBiology Cell Unit Homework Packet #3
Biology Cell Unit Homework Packet #3 Name DUE: Hour HW #5 Egg Demo Drawings Analysis HW #6 Elodea Drawings lab Analysis HW #7 Cell Questions Membrane and Transport HW #8 Questions / 5 possible points Homework
More information1 Motion. What is motion? Focus Questions: How do we measure it? How do we show it? Name: pd date
1 Motion Name: pd date Quick Write Focus Question: draw motion use words to describe motion (do not use move, movement, etc) Motion Notes definition symbol formula motion position initial position final
More informationTo design procedures for testing whether each indicator solution is a good test for starch or for protein, answer questions 2 and 3. Be specific.
A Scientific Investigation What types of food contain starch and protein? by Dr. Ingrid Waldron, Department of Biology, University of Pennsylvania, 2013, http://serendip.brynmawr.edu/sci_edu/waldron/#starch
More informationSCIENTIFIC INVESTIGATION AND PROCESS
SCIENTIFIC INVESTIGATION AND PROCESS Open up to Scientific Process NOTE BLANKS 1) Read the introduction 2) Fill in the Scientific Process Skills using the reading 3) Complete the flow chart on page 2 using
More informationEnvironmental Literacy Carbon Assessment: --- High School Level, Form A ---
Environmental Literacy Carbon Assessment: --- High School Level, Form A --- Science is easier to understand if you can make connections between what you know now and the new ideas that you are studying.
More informationSPINE ROAD HIGH SCHOOL
SPINE ROAD HIGH SCHOOL VIA AD SUCCESSORUM LIFE SCIENCES GRADE 11 CONTROL TEST 1-2017 TIME: 1½ hours MARKS: 80 INSTRUCTIONS: Read the following instructions carefully before answering the questions. 1.
More informationFigure 2. Figure 1. Name: Bio AP Lab Organic Molecules
Name: Bio AP Lab Organic Molecules BACKGROUND: A cell is a living chemistry laboratory in which most functions take the form of interactions between organic molecules. Most organic molecules found in living
More informationVisit for Videos, Questions and Revision Notes. Describe how acetylcoenzyme A is formed in the link reaction
Q1.(a) Describe how acetylcoenzyme A is formed in the link reaction. (b) In the Krebs cycle, acetylcoenzyme A combines with four-carbon oxaloacetate to form six-carbon citrate. This reaction is catalysed
More informationCellular Respiration. Release of Energy From Food (glucose)!
Cellular Respiration Release of Energy From Food (glucose)! Energy needs of life Animals are energy consumers What do we need energy for? synthesis (building for growth) reproduction active transport movement
More informationPage 1. Name:
Name: 5021-1 - Page 1 1) A student measures his pulse rate while he is watching television and records it. Next, he walks to a friend's house nearby and when he arrives, measures and records his pulse
More informationClass 10 Science - Sample Paper Set I
Time allowed: 3 hours; Maximum marks: 90 General Instructions: a) All Questions are compulsory b) The Question Paper consists of 42 Questions divided in to four sections A, B, C and D c) Section- A comprises
More informationName Date Class. To complete the following sentences, choose the correct term from each pair of terms listed, and write the term in the blank.
CHAPTER 2 IT S ALIVE!! OR, IS IT? Chapter 2 Test USING VOCABULARY To complete the following sentences, choose the correct term from each pair of terms listed, and write the term in the blank. 1. In the
More informationBiology *P51855A0116* P51855A. Unit: 4BI0 Paper: 2B. Pearson Edexcel International GCSE. Monday 15 January 2018 Afternoon Time: 1 hour.
Write your name here Surname Other names Pearson Edexcel International GCSE Biology Unit: 4BI0 Paper: 2B Centre Number Candidate Number Monday 15 January 2018 Afternoon Time: 1 hour You must have: Calculator
More informationINVESTIGATION 13 ENZYME ACTIVITY
INVESTIGATION 13 ENZYME ACTIVITY BACKGROUND Enzymes are the catalysts of biological systems. They speed up chemical reactions in biological systems by lowering the activation energy, the energy needed
More informationTopic 4: Enzymes and metabolism
Topic 4: Enzymes and metabolism 1. An is a living molecule produced by glands to digest food in the alimentary canal. living molecule produced by cells to synthesise complex molecules from simpler ones.
More information250-mL beakers. iodine solution metric ruler. 10-mL graduated cylinders pipettes. (Read the Procedure first to answer the Questions)
Detecting Diffusion Introduction A cell membrane is a selectively permeable barrier. Some particles can pass through the cell membrane while other particles are held back. Solutes that can move across
More informationEnzymes. Chapter Enzymes and catalysts. Vital mistake. What is an enzyme?
Chapter 3 Enzymes Vital mistake We may not be able to see them, but enzymes are absolutely crucial to the lives of ourselves and all other living organisms. The Quarter Horse (Figure 3.1) is a breed of
More informationLab: Organic Compounds
Lab: Organic Compounds Name(s) Date Period Benchmark: SC.912.L.18.1: Describe the basic molecular structures and primary functions of the four major categories of biological macromolecules. Background:
More informationCellular Respiration. Honors Biology I
Cellular Respiration Honors Biology I Anaerobic vs. Aerobic 1) Respiration vs. Cellular respiration 2) When you run, you re using respiration to make energy in the form of ATP to allow your muscles to
More informationEnzyme Action: Testing Catalase Activity
Enzyme Action: Testing Catalase Activity LabQuest 6A Many organisms can decompose hydrogen peroxide (H 2 O 2 ) enzymatically. Enzymes are globular proteins, responsible for most of the chemical activities
More informationBio 111 Study Guide Chapter 7 Cellular Respiration & Fermentation
Bio 111 Study Guide Chapter 7 Cellular Respiration & Fermentation BEFORE CLASS: Reading: Read the whole chapter from pp. 141-158. In Concept 7.1, pay special attention to oxidation & reduction and the
More informationCycling of Organic and Inorganic Matter
Cycling of Matter Build your Own Notes: Use these topics as guidelines to create your own notes from the page given udy Notes/Questions Cycling of Organic and Inorganic Matter Organic matter always contains
More informationWritten Response #1: True/False
Written Response #1: True/False 1. Osmosis means to absorb something. 2. Cells are able to excrete waste. 3. Cells obtain energy by gaining nutrition from food. 4. Plants use sunlight for food. 5. Plants
More informationCatalytic Activity of Enzymes
Catalytic Activity of Enzymes Introduction Enzymes are biological molecules that catalyze (speed up) chemical reactions. You could call enzymes the Builders and Do-ers in the cell; without them, life could
More information2 Answer all the questions.... [1] (b) Fig. 1.1 is an electron micrograph of the junction between two neurones.
2 Answer all the questions. 1 (a) The cells of the body need to communicate with one another. State the name given to this process of communication.... [1] (b) Fig. 1.1 is an electron micrograph of the
More informationthe contents of the cell from the environment.
Name: Date: Period: Living Environment Unit 3: Cellular Processes Study Guide Due Date: Test Date: Unit 3 Important Topics: I. Aim # 14 Cell Membrane II. Aim # 15 NYS Diffusion Lab III. Aim # 16 Photosynthesis
More informationIdentification of Organic Compounds Lab
Identification of Organic Compounds Lab Introduction All organic compounds contain the element carbon (C). Organic compounds usually also contain oxygen (O) or hydrogen (H) or both. They may also contain
More informationPre-lab Homework Lab 6: Photosynthesis & Cellular Respiration
Lab Section: Name: Pre-lab Homework After reading over the lab and the topics of photosynthesis and cellular respiration from your textbook, answer these questions to be turned in at the beginning of the
More informationCore practical 14: Investigate the effect of gibberellin on the production of amylase in germinating cereals using a starch agar assay
Core practical 14 Teacher sheet Core practical 14: Investigate the effect of gibberellin on the production of amylase in germinating cereals using a starch agar assay Objectives To investigate the effect
More informationANIMAL, PLANT & SOIL SCIENCE D3-6 CHARACTERISTICS AND SOURCES OF PHOSPHORUS AND POTASSIUM
ANIMAL, PLANT & SOIL SCIENCE D3-6 CHARACTERISTICS AND SOURCES OF PHOSPHORUS AND POTASSIUM INTEREST APPROACH Show images of plants suffering from phosphorus and potassium deficiencies. Ask students if they
More information10. The diagram below shows two different kinds of substances, A and B, entering a cell.
1. In the binomial system of nomenclature, which two classification groups provide the scientific name of an organism? A) kingdom and phylum B) phylum and species C) kingdom and genus D) genus and species
More informationYEAR 10 PRACTICE EXAM 1: 2014
YEAR 10 PRACTICE EXAM 1: 2014 Question One [5 marks] Hazard symbols are used instead of words to warn about the dangers of chemicals. (a) Give one reason why hazard symbols are used instead of words. [1]
More informationI B Biology IA Handbook
I B Biology IA Handbook E L S E G A P P M A S COPY MASTERS (For use with the IB Diploma programme) (Third edition) Author: Chris Talbot Series editor: David Greig Table of Contents Chapter 1 - Personal
More informationProblem: What would happen to enzyme activity if enzymes are placed outside their normal conditions? Hypothesis:
Name: Date: Period: Honors Biology: Enzyme Lab Background information What would happen to your cells if they made a poisonous chemical? You might think that they would die. In fact, your cells are always
More informationBIO 12 UNIT 04: The Cell Membrane BCLN Rev. July, 2015
Project 1: Osmosis Lab Name: Potential Credits: /50 Project Goals: to gain and demonstrate a better understanding of osmosis Instructions Please read through the Unit 4 Lessons, paying particular attention
More information