OCN621: Biological Oceanography- Bioenergetics-II
|
|
- Lucas Reynolds
- 5 years ago
- Views:
Transcription
1 OCN621: Biological Oceanography- Bioenergetics-II Zackary Johnson MSB614 <
2 Chemosynthesis (Chemolithotrophy) Use of small inorganic molecules as an external energy source to power CO 2 reduction. Examples: 2 NH O 2 2 NO H H 2 O 2 NO 2- + O 2 2 NO 3-4 Fe 2+ + O 2 + 4H + 4 Fe H 2 O HS O 2 SO H + Shared characteristics: 1. Use energy from inorganic chemicals to generate ATP by electron transport phosphorylations with O 2 as terminal electron acceptor. 2. Use Calvin Cycle to fix CO 2 into glucose. 3. Reducing agent NADP has to be generated by utilization of some ATP not directly produced by the chemosynthetic process.
3 Anaerobic Chemosynthesis Some bacteria can live chemosynthetically without reducing O 2 and without assimilating CO 2 through the Calvin Cycle. Example: utilization of H 2 + CO 2 to produce methane 4 H 2 + CO 2 CH H 2 O The energy derived from this process is used to reduce CO 2 to organics.
4 Bacterial metabolism is exceptionally diverse. Many chemical substrates can serve as a source of energy for bacterial growth and production. Chemosynthesis (by bacteria) is generally not as important as photosynthesis in producing organic matter, but is clearly important in understanding elemental cycling in the oceans.
5 Definitions of nutritional modes AUTOTROPHIC - self-nourishing, organisms with the ability to synthesize organic molecules from CO 2. All photolithotrophic and chemolithotrophic organisms may be autotrophic, but many require small amounts of organic molecules - vitamins or essential amino acids which they cannot synthesize. These organisms are auxotrophic - requiring supplemental nourishment. HETEROTROPHIC - depend entirely on organic molecules synthesized by other organisms. Osmotrophic heterotrophs which take up organic compounds by absorption through cell membrane. Phagotrophic heterotrophs which ingest particulate food. MIXOTROPHIC - organisms with mixed mode of nutrition. Some bacteria (chemoorganotrophs) use energy from small organic molecules to reduce CO 2 to sugars. Other mixotrophic organisms (e.g., protozoans) consume particulate food, but also contain functional chloroplasts or endosymbionts. Note: Both autotrophic and heterotrophic organisms manage to get small organic molecules into their cells, but they require additional energy to do anything with them. All of energy from sunlight is used up in photosynthesis; assimilation by heterotrophs requires (does not yield) energy. In order to live, all organisms have to convert small organic molecules into chemical energy which can then be used to do work.
6 Extracting Energy from Organic Molecules GLYCOLYSIS - a "fermentation" reaction anaerobic decomposition of organics into "waste" product, lactic acid. The process involves about 11 steps & does not require a rigid organizational framework. C 6 H 12 O 6 2 C 3 H 4 O 3 2 C 3 H 6 O 3 glucose pyruvate lactate 2 ADP + 2 Pj 2 ATP 2 NAD re 2 NAD ox 2 NAD ox 2 NAD re If muscle tissue operates anaerobically (glycolysis) it builds up lactic acid and an oxygen deficit RESPIRATION - aerobic breakdown of food molecules yielding ATP. All basic organic constituents (sugars, fatty acids, amino acids) can be broken down in respiration, which begins where gylcolysis leaves off. Complex reaction system >100+ steps organized in mitochondria (cell "power plant") KREBS CYCLE (aka: Citric Acid or Tricarboxylic Acid Cycle) -Acetyl CoA (2 carbon molecule) oxidized to CO 2. Krebs Cycle intermediates return to initial state & generate NAD re from electrons liberated in the process.
7 Overview of Energy Extraction Chemoorganotrophy (autotrophs and heterotrophs)
8 Glycolysis (anaerobic)
9 Krebs Cycle (aerobic)
10 Respiratory Chain Phosphorylation Electron transfer ultimately reduces O 2 to H 2 O, but some of the energy liberated in the process is conserved as ATP (3 ATP produced per molecule of NAD re processed). Energy from the aerobic respiration of 1 glucose molecule: 2 ATP + 2 NADre 2 NADre 8 NADre 2 ATP + 12 NADre x3 ATP/NADre respiratory chain 2 ATP + 36ATP = 38 ATP/molecule glucose compare: 38 ATP/glucose - AEROBIC metabolism 2 ATP/glucose - ANAEROBIC metabolism Anaerobic organisms must process 19X more organic substrate to produce the same amount of ATP-energy as aerobic organisms. Aerobic organisms will operate efficiently at relatively dilute substrate levels. Anaerobic organisms have (by necessity) to be very simple and not very active to minimize energy expenditure (bacteria, yeast but also some protozoa, incl. endosymbiotic chemotrophic bacteria). Also inhabit environments with high substrate levels - e.g., decaying organic matter.
11 Oxidation of Organic Matter with Different e - Acceptors REACTION ΔG o (kcal/mole) CH O 2 CO 2 + H 2 O CH 2 O + 4 NO 3-4 HCO 3- + CO H 2 O + 2 N CH 2 O + 3 CO 2 + H 2 O + 2 MnO 2 4 HCO Mn CH 2 O + 7 CO Fe(OH) 3 8 HC H 2 O + 4 Fe CH SO 4 2 HCO 3- + H 2 S -77 CH 2 0 CO 2 + CH 4-58 ΔG o (kcal/mole) = free energy released per mole of glucose oxidized CONCEPT: Some energetic transformations are more energetically favorable than others. These will usually occur first under natural conditions - i.e., the most energetically favorable terminal electron acceptor (O 2 ) will be used until itis no longer available, then the environment will favor organisms (bacteria) capable of utilizing alternative electron acceptor to oxidize organic matter.
12 Biological Utilization of Chemical Energy 1. Energy Currency ATP - Economic analogy for the transformation of energy in the cell - need for a "medium of exchange". Most biochemical reaction series requires elaborate cell machinery and organization, and many specific enzymes. It is not efficient, and not possible, for enzyme complexes to handle all possible combinations of substrates, intermediates, and sources of energy. METABOLIC processes (e.g, respiration) "oxidize" organic molecules, capturing some of their energy in a single molecule which is recognized as the "energy donor" or "medium of exchange" in all subsequent reactions. This molecule, ATP, is special because it carries a fixed amount of energy in an easily released form high energy phosphate bonds.
13 2. Active Transport: work of moving molecules &ions against concentration gradients According to the 2nd Law of Thermodynamics - everything in universe tends toward increased entropy (randomness). Therefore, energy must be expended to bring things (e.g, molecules) into a more organized and concentrated state. Functions of active transport: 1. Provides proper chemical environment for cellular processes (e.g., ph). 2. Brings needed substrates (glucose, amino acids) &essential minerals (nitrate, phosphate, & important ions K+ and Ca++) where they are needed. 3. Gets rid of waste products (H+, Na+, C02, lactic acid). Characteristics of active transport: 1. A given systems is specific for a particular molecule or ion. 2. Transport occurs in a specific direction across membrane. Transport is accomplished by enzymes at "active sites" - i.e., substrate specific with specific orientation (directionality) in cell membrane matrix. 3. Powered by ATP molecules which "fit" into an active sites and donates high energy phosphate bonds to the process. 4. Works against continuous back diffusion (which occurs at a slower rate because it is not enzyme aided). Active transport is generally a continuous process in living cells, concentrations on either side of the membrane are maintained in "dynamic equilibrium"
14 2. Active Transport (cont.)
Guangyi Wang. Chemosynthesis (Chemolithotrophy)
OCN621: Biological Oceanography- Bioenergetics-II Guangyi Wang POST 103B guangyi@hawaii.edu http://www.soest.hawaii.edu/oceanography/zij/education/ocn621/ Chemosynthesis (Chemolithotrophy) Use of small
More informationRespiration. Respiration. How Cells Harvest Energy. Chapter 7
How Cells Harvest Energy Chapter 7 Respiration Organisms can be classified based on how they obtain energy: autotrophs: are able to produce their own organic molecules through photosynthesis heterotrophs:
More informationHow Cells Harvest Energy. Chapter 7. Respiration
How Cells Harvest Energy Chapter 7 Respiration Organisms classified on how they obtain energy: autotrophs: produce their own organic molecules through photosynthesis heterotrophs: live on organic compounds
More informationRespiration. Respiration. Respiration. How Cells Harvest Energy. Chapter 7
How Cells Harvest Energy Chapter 7 Organisms can be classified based on how they obtain energy: autotrophs: are able to produce their own organic molecules through photosynthesis heterotrophs: live on
More informationCELLULAR RESPIRATION. Chapter 7
CELLULAR RESPIRATION Chapter 7 7.1 GLYCOLYSIS AND FERMENTATION If I have a $10.00 bill and a $10.00 check, which is better? ATP is like cash in the cell Glucose, NADH, FADH2 are like checks in a cell.
More informationCellular Respiration. Cellular Respiration. C 6 H 12 O 6 + 6O > 6CO 2 + 6H energy. Heat + ATP. You need to know this!
Cellular Respiration LISA Biology Cellular Respiration C 6 H 12 O 6 + 6O 2 - - - - - > 6CO 2 + 6H 2 0 + energy You need to know this! Heat + ATP 1 Did that equation look familiar? * The equation for cellular
More informationHow Cells Release Chemical Energy. Chapter 7
How Cells Release Chemical Energy Chapter 7 7.1 Overview of Carbohydrate Breakdown Pathways All organisms (including photoautotrophs) convert chemical energy of organic compounds to chemical energy of
More informationName Class Date. 1. Cellular respiration is the process by which the of "food"
Name Class Date Cell Respiration Introduction Cellular respiration is the process by which the chemical energy of "food" molecules is released and partially captured in the form of ATP. Carbohydrates,
More informationFARM MICROBIOLOGY 2008 PART 3: BASIC METABOLISM & NUTRITION OF BACTERIA I. General Overview of Microbial Metabolism and Nutritional Requirements.
FARM MICROBIOLOGY 2008 PART 3: BASIC METABOLISM & NUTRITION OF BACTERIA I. General Overview of Microbial Metabolism and Nutritional Requirements. Under the right physical conditions, every microorganism
More informationChemical Energy. Valencia College
9 Pathways that Harvest Chemical Energy Valencia College 9 Pathways that Harvest Chemical Energy Chapter objectives: How Does Glucose Oxidation Release Chemical Energy? What Are the Aerobic Pathways of
More informationAP Biology Review: Theme 3- Energy
AP Biology Review: Theme 3- Energy 3.1: All living systems require constant input of free energy. 3.2: Interactions between molecules affect their structure and function. 3.3: Organisms capture and store
More informationLife is based on redox
Life is based on redox All energy generation in biological systems is due to redox (reduction-oxidation) reactions Aerobic Respiration: C 6 H 12 O 6 + 6 H 2 O ==> 6 CO 2 + 24 H + +24 e - oxidation electron
More informationCh 9: Cellular Respiration
Ch 9: Cellular Respiration Cellular Respiration An overview Exergonic reactions and catabolic pathway Energy stored in bonds of food molecules is transferred to ATP Cellular respiration provides the energy
More information3.1: All living systems require constant input of free energy. 1. BIOENERGETIC THEORY
Domain 3: Energy 3.1: All living systems require constant input of free energy. 1. BIOENERGETIC THEORY The First Law of Thermodynamics Energy cannot be created or destroyed, only transformed. Living systems
More informationTable of Contents. Section 1 Glycolysis and Fermentation. Section 2 Aerobic Respiration
Table of Contents Section 1 Glycolysis and Fermentation Section 2 Aerobic Respiration Objectives Identify the two major steps of cellular respiration. Describe the major events in glycolysis. Compare lactic
More informationHarvesting energy: photosynthesis & cellular respiration part 1I
Harvesting energy: photosynthesis & cellular respiration part 1I Agenda I. Overview (Big Pictures) of Photosynthesis & Cellular Respiration II. Making Glucose - Photosynthesis III. Making ATP - Cellular
More informationReleasing Food Energy
Releasing Food Energy All food is broken down by the body into small molecules through digestion. By the time food reaches your, bloodstream it has been broken down into nutrient rich molecules that can
More informationUnit 2 Cellular Respiration
Metabolism Unit 2 Cellular Respiration Living organisms must continually to carry out the functions of life. Without energy, comes to an end. The breakdown of complex substances are the result of. The
More informationHow Did Energy-Releasing Pathways Evolve? (cont d.)
How Did Energy-Releasing Pathways Evolve? (cont d.) 7.1 How Do Cells Access the Chemical Energy in Sugars? In order to use the energy stored in sugars, cells must first transfer it to ATP The energy transfer
More informationAP BIOLOGY Chapter 7 Cellular Respiration =
1 AP BIOLOGY Chapter 7 Cellular Respiration = Day 1 p. I. Overview A. Cellular Respiration 1. Respiration breathing, exchange of O 2 for CO 2 2. Cellular respiration aerobic harvesting of energy from food
More information3.7.1 Define cell respiration [Cell respiration is the controlled release of energy from organic compounds in cells to form ATP]
3.7 Cell respiration ( Chapter 9 in Campbell's book) 3.7.1 Define cell respiration [Cell respiration is the controlled release of energy from organic compounds in cells to form ATP] Organic compounds store
More informationOVERVIEW OF RESPIRATION AND LOOSE ENDS. What agents? What war?
5.19.06 OVERVIEW OF RESPIRATION AND LOOSE ENDS What agents? What war? 1 Ubiquinone or Coenzyme Q: small hydrophobic molecule that can pick up or donate electrons The respiratory chain contains 3 large
More informationChapter 9: Cellular Respiration
Chapter 9: Cellular Respiration Breaking down glucose a little at a time.. It s like turning a five pound bag of sugar into several tiny sugar packets worth of energy in the form of ATP. Remember the carbon
More informationCellular Respiration. Objectives
Lecture 07 Objectives At the end of this series of lectures, you should be able to: Define terms. Compare the processes and locations of cellular respiration and photosynthesis. Explain how breathing and
More informationLiving organisms obtain energy by breaking down organic molecules during cellular respiration.
Section 3: Living organisms obtain energy by breaking down organic molecules during cellular respiration. K What I Know W What I Want to Find Out L What I Learned Essential Questions What are the stages
More informationCellular Respiration: Obtaining Energy from Food
Chapter 6 Cellular Respiration: Obtaining Energy from Food Lectures by Chris C. Romero, updated by Edward J. Zalisko PowerPoint Lectures for Campbell Essential Biology, Fourth Edition Eric Simon, Jane
More informationCell Respiration Ch 7. Both autotrophs and heterotrophs use cellular respiration to make CO2 and water from
Cell Respiration Ch 7 Objectives: Identify the 2 major steps of cellular respiration Describe the major events in glycolysis Compare lactic acid fermentation with alcoholic fermentation Calculate the efficiency
More informationReleasing Chemical Energy
Releasing Chemical Energy Ø Energy From Carbohydrates Ø Aerobic Respiration/ Stages Ø Fermentation Ø Food as a Source of Energy How Do Cells Access the Chemical Energy in Carbohydrayes? Aerobic Respiration
More informationCELLULAR RESPIRATION
CELLULAR RESPIRATION LEARNING OBJECTIVES 1. Describe the general flow of energy and food in living cells 2. Describe the organization of the mitochondria 3. Explain the main purpose and events of aerobic
More informationEnergy is stored in the form of ATP!! ADP after ATP is broken down
Cellular Respiration Cellular respiration is the process in which plants and animals convert FOOD into ENERGY (ATP!) in their cells. This occurs in the Mitochondria! Energy is stored in the form of ATP!!
More informationChapter 9 Cellular Respiration
Chapter 9 Cellular Respiration Biology and Society: Marathoners versus Sprinters Sprinters do not usually compete at short and long distances. Natural differences in the muscles of these athletes favor
More informationChapter 7 Cellular Respiration and Fermentation*
Chapter 7 Cellular Respiration and Fermentation* *Lecture notes are to be used as a study guide only and do not represent the comprehensive information you will need to know for the exams. Life Is Work
More informationEnzymes what are they?
Topic 11 (ch8) Microbial Metabolism Topics Metabolism Energy Pathways Biosynthesis 1 Catabolism Anabolism Enzymes Metabolism 2 Metabolic balancing act Catabolism Enzymes involved in breakdown of complex
More informationChapter 5-7, 10. Read P , , and
Chapter 5-7, 10 Read P. 75-82, 91-100, 107-117 and 173-185 Introduction to Metabolism and Enzymes Catabolic reactions (also called catabolism ) break down larger, more complex molecules into smaller molecules
More informationMULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.
Respiration Practice Name MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) Which of the following statements describes NAD+? A) NAD+ can donate
More informationIntroduction. Living is work. To perform their many tasks, cells must bring in energy from outside sources.
Introduction Living is work. To perform their many tasks, cells must bring in energy from outside sources. In most ecosystems, energy enters as sunlight. Light energy trapped in organic molecules is available
More informationI. ATP: Energy In A Molecule
I. ATP: Energy In A Molecule All food is broken down by the body into small molecules through digestion By the time food reaches your bloodstream, it has been broken down into nutrient molecules that can
More informationChapter 7 How Cells Release Chemical Energy
Chapter 7 How Cells Release Chemical Energy 7.1 Mighty Mitochondria More than forty disorders related to defective mitochondria are known (such as Friedreich s ataxia); many of those afflicted die young
More informationChapter 6 Cellular Respiration: Obtaining Energy from Food
Chapter 6 Cellular Respiration: Obtaining Energy from Food PowerPoint Lectures for Campbell Essential Biology, Fifth Edition, and Campbell Essential Biology with Physiology, Fourth Edition Eric J. Simon,
More informationReading Assignments. A. Energy and Energy Conversions. Lecture Series 9 Cellular Pathways That Harvest Chemical Energy. gasoline) or elevated mass.
Lecture Series 9 Cellular Pathways That Harvest Chemical Energy Reading Assignments Review Chapter 3 Energy, Catalysis, & Biosynthesis Read Chapter 13 How Cells obtain Energy from Food Read Chapter 14
More information14 BACTERIAL METABOLISM
14 BACTERIAL METABOLISM 14.1. ENERGY-GENERATING METABOLISM The term metabolism refers to the sum of the biochemical reactions required for energy generation and the use of energy to synthesize cell material
More informationChapter 6 Cellular Respiration: Obtaining Energy from Food
Chapter 6 Cellular Respiration: Obtaining Energy from Food PowerPoint Lectures for Campbell Essential Biology, Fifth Edition, and Campbell Essential Biology with Physiology, Fourth Edition Eric J. Simon,
More informationAP Bio Photosynthesis & Respiration
AP Bio Photosynthesis & Respiration Multiple Choice Identify the letter of the choice that best completes the statement or answers the question. 1. What is the term used for the metabolic pathway in which
More informationEnergy storing Compounds
Chapter 4 ENERGY!!! Energy storing Compounds Adenosine Triphosphate ATP. Energy is stored in between the phosphate bonds. AMP- little energy, ADP some energy, ATP the most energy ATP is used by all living
More information10/31/2016 CHAPTER 9 RESPIRATION I. RESPIRATION II. ENERGY FOR LIFE A. DEFINITION-THE TOTAL CHEMICAL BREAK DOWN OF GLUCOSE WITH OXYGEN
CHAPTER 9 RESPIRATION KENNEDY BIOL. 1AB I. RESPIRATION A. DEFINITION-THE TOTAL CHEMICAL BREAK DOWN OF GLUCOSE WITH OXYGEN II. ENERGY FOR LIFE ALL THE ENERGY FOR LIFE COMES FROM THE METABOLISM OF GLUCOSE
More informationMIDDLETOWN HIGH SCHOOL SOUTH BIOLOGY
MIDDLETOWN HIGH SCHOOL SOUTH BIOLOGY BOOKLET 10 NAME: CLASS: 1 S.Tagore Middletown South High School March 2013 LEARNING OUTCOMES The role and production of ATP (a) Importance, role and structure of ATP
More informationIII. 6. Test. Respiració cel lular
III. 6. Test. Respiració cel lular Chapter Questions 1) What is the term for metabolic pathways that release stored energy by breaking down complex molecules? A) anabolic pathways B) catabolic pathways
More informationCHAPTER 5 MICROBIAL METABOLISM
CHAPTER 5 MICROBIAL METABOLISM I. Catabolic and Anabolic Reactions A. Metabolism - The sum of all chemical reactions within a living cell either releasing or requiring energy. (Overhead) Fig 5.1 1. Catabolism
More informationStructure of the Mitochondrion. Cell Respiration. Cellular Respiration. Catabolic Pathways. Photosynthesis vs. Cell Respiration ATP 10/14/2014
Structure of the Mitochondrion Cellular Respiration Chapter 9 Pgs. 163 183 Enclosed by a double membrane Outer membrane is smooth Inner, or cristae, membrane is folded - this divides the mitochondrion
More informationChapter 5. Microbial Metabolism
Chapter 5 Microbial Metabolism Metabolism Collection of controlled biochemical reactions that take place within a microbe Ultimate function of metabolism is to reproduce the organism Metabolic Processes
More informationChapter 8. An Introduction to Microbial Metabolism
Chapter 8 An Introduction to Microbial Metabolism The metabolism of microbes Metabolism sum of all chemical reactions that help cells function Two types of chemical reactions: Catabolism -degradative;
More informationCell Respiration - 1
Cell Respiration - 1 All cells must do work to stay alive and maintain their cellular environment. The energy needed for cell work comes from the bonds of ATP. Cells obtain their ATP by oxidizing organic
More informationHarvesting energy: photosynthesis & cellular respiration
Harvesting energy: photosynthesis & cellular respiration Learning Objectives Know the relationship between photosynthesis & cellular respiration Know the formulae of the chemical reactions for photosynthesis
More informationCellular Respiration: Obtaining Energy from Food
Chapter 6 Cellular Respiration: Obtaining Energy from Food PowerPoint Lectures for Campbell Essential Biology, Fourth Edition Eric Simon, Jane Reece, and Jean Dickey Campbell Essential Biology with Physiology,
More informationCellular Respiration Notes. Biology - Mrs. Kaye
Cellular Respiration Notes Biology - Mrs. Kaye Energy Transfer In cellular respiration, chemical energy is converted into usable energy which is converted into heat energy. ATP and ADP ATP acts as an energy
More informationWhat is Respiration? The process of respiration is where organisms convert chemical energy into cellular energy, which is known as ATP. Adenine Ribose P P P Cellular Respiration high energy sugar low energy
More informationBell Work. b. is wrong because combining two glucose molecules requires energy, it does not release energy
Bell Work How is energy made available to the cell to move large starch molecules across the cell membrane through the process of endocytosis? a. removing a phosphate from ATP b. combining two glucose
More informationGeneral Biology 1004 Chapter 6 Lecture Handout, Summer 2005 Dr. Frisby
Slide 1 CHAPTER 6 Cellular Respiration: Harvesting Chemical Energy PowerPoint Lecture Slides for Essential Biology, Second Edition & Essential Biology with Physiology Presentation prepared by Chris C.
More informationCellular Respiration. Unit 5: Plants, Photosynthesis, and Cellular Respiration
Cellular Respiration Unit 5: Plants, Photosynthesis, and Cellular Respiration Overview! Organisms obtain energy (ATP) by breaking down (catabolic pathway, exergonic reaction) organic molecules (glucose)
More informationObjective: You will be able to construct an explanation for how each phase of respiration captures and stores free energy.
Objective: You will be able to construct an explanation for how each phase of respiration captures and stores free energy. Do Now: Compare and contrast the three black equations below ADP + P + Energy
More informationCH 9 CELLULAR RESPIRATION. 9-1 Chemical Pathways 9-2 The Krebs Cycle and Electron Transport
CH 9 CELLULAR RESPIRATION 9-1 Chemical Pathways 9-2 The Krebs Cycle and Electron Transport Chemical Energy and Food Energy source = food = ATP A calorie is the unit for the amount of energy needed to raise
More informationChapter 6 Cellular Respiration: Obtaining Energy from Food Biology and Society: Marathoners versus Sprinters
Chapter 6 Cellular Respiration: Obtaining Energy from Food Biology and Society: Marathoners versus Sprinters Sprinters do not usually compete at short and long distances. Natural differences in the muscles
More informationHow Cells Harvest Chemical Energy
How Cells Harvest Chemical Energy Chapter 6 Introduction: How Is a Marathoner Different from a Sprinter? Individuals inherit various percentages of the two main types of muscle fibers, slow and fast The
More informationNOTES: Ch 9 Cellular Respiration: Harvesting Chemical Energy Part 1: The Overview
NOTES: Ch 9 Cellular Respiration: Harvesting Chemical Energy Part 1: The Overview Overview: Life Is Work Living cells require energy from outside sources Some animals, such as the giant panda, obtain energy
More information4. Which step shows a split of one molecule into two smaller molecules? a. 2. d. 5
1. Which of the following statements about NAD + is false? a. NAD + is reduced to NADH during both glycolysis and the citric acid cycle. b. NAD + has more chemical energy than NADH. c. NAD + is reduced
More informationBiology Chapter-7 Cellular Respiration
Biology-1406 Chapter-7 Cellular Respiration Energy is stored in Chemicals Catabolism- the breaking down of complex molecules, such as glucose, to release their stored energy. Catabolism may or may not
More informationChapter 9 Notes. Cellular Respiration and Fermentation
Chapter 9 Notes Cellular Respiration and Fermentation Objectives Distinguish between fermentation and anaerobic respiration. Name the three stages of cellular respiration and state the region of the cell
More informationChapter 6 Cellular Respiration: Obtaining Energy from Food
Chapter 6 Cellular Respiration: Obtaining Energy from Food PowerPoint Lectures for Campbell Essential Biology, Fifth Edition, and Campbell Essential Biology with Physiology, Fourth Edition Eric J. Simon,
More informationCellular Pathways That Harvest Chemical Energy. Cellular Pathways That Harvest Chemical Energy. Cellular Pathways In General
Cellular Pathways That Harvest Chemical Energy A. Obtaining Energy and Electrons from Glucose Lecture Series 12 Cellular Pathways That Harvest Chemical Energy B. An Overview: Releasing Energy from Glucose
More informationMetabolism. Chapter 8 Microbial Metabolism. Metabolic balancing act. Catabolism Anabolism Enzymes. Topics. Metabolism Energy Pathways Biosynthesis
Chapter 8 Microbial Metabolism Topics Metabolism Energy Pathways Biosynthesis Catabolism Anabolism Enzymes Metabolism 1 2 Metabolic balancing act Catabolism and anabolism simple model Catabolism Enzymes
More informationChapter Seven (Cellular Respiration)
Chapter Seven (Cellular Respiration) 1 SECTION ONE: GLYCOLYSIS AND FERMENTATION HARVESTING CHEMICAL ENERGY Cellular respiration is the process in which cells make adenosine triphosphate (ATP) by breaking
More informationEnergy Production In A Cell (Chapter 25 Metabolism)
Energy Production In A Cell (Chapter 25 Metabolism) Large food molecules contain a lot of potential energy in the form of chemical bonds but it requires a lot of work to liberate the energy. Cells need
More informationCellular Respiration: Obtaining Energy from Food
Chapter 6 Cellular Respiration: Obtaining Energy from Food Lectures by Chris C. Romero, updated by Edward J. Zalisko PowerPoint Lectures for Campbell Essential Biology, Fourth Edition Eric Simon, Jane
More informationRespiration. Organisms can be classified based on how they obtain energy: Autotrophs
Respiration rganisms can be classified based on how they obtain energy: Autotrophs Able to produce their own organic molecules through photosynthesis Heterotrophs Live on organic compounds produced by
More informationCellular Respiration
Cellular Respiration C 6 H 12 O 6 + 6O 2 -----> 6CO 2 + 6H 2 0 + energy (heat and ATP) 1. Energy Capacity to move or change matter Forms of energy are important to life include Chemical, radiant (heat
More informationCellular Respiration
Cellular Respiration The breakdown of glucose for cellular energy. happens in all living cells. is exothermic H atoms and e are removed from glucose (oxidization) and added to oxygen (reduction) excess
More informationClass XI Chapter 14 Respiration in Plants Biology. 1. It is a biochemical process. 1. It is a physiochemical process.
Question 1: Differentiate between (a) Respiration and Combustion (b) Glycolysis and Krebs cycle (c) Aerobic respiration and Fermentation (a) Respiration and combustion Respiration Combustion 1. It is a
More informationCellular Respiration an overview Section 9.1
Cellular Respiration an overview Section 9.1 Where do organisms get their energy? Unit calories 1 calorie = amount of energy required to increase 1 gram of water by 1 degrees Celsius 1000 calories 1 Calorie
More informationCellular Respiration: Harvesting Chemical Energy
Chapter 9 Cellular Respiration: Harvesting Chemical Energy PowerPoint Lecture Presentations for Biology Eighth Edition Neil Campbell and Jane Reece Lectures by Chris Romero, updated by Erin Barley with
More informationCellular Respiration- -conversion of stored energy in glucose to usable energy for the cell -energy in cells is stored in the form of ATP
Cellular Respiration Notes Chapter 7 How Cells Make ATP Energy Releasing Pathways Cellular Respiration- -conversion of stored energy in glucose to usable energy for the cell -energy in cells is stored
More informationChapter 9 Cellular Respiration. Copyright Pearson Prentice Hall
Chapter 9 Cellular Respiration Copyright Pearson Prentice Hall 9-1 Chemical Pathways Both plant and animal cells carry out the final stages of cellular respiration in the mitochondria. Animal Cells Animal
More informationOAT Biology - Problem Drill 03: Cell Processes - Metabolism and Cellular Respiration
OAT Biology - Problem Drill 03: Cell Processes - Metabolism and Cellular Respiration Question No. 1 of 10 1. What is the final electron acceptor in aerobic respiration? Question #01 (A) NADH (B) Mitochondria
More informationCellular Respiration Guided Notes
Respiration After you hear word 'respiration', you may now think about breathing. During breathing, the is entered with each inhale and is released with each exhale. You may have noticed that breathing
More informationMetabolism. Topic 11&12 (ch8) Microbial Metabolism. Metabolic Balancing Act. Topics. Catabolism Anabolism Enzymes
Topic 11&12 (ch8) Microbial Metabolism Topics Metabolism Energy Pathways Biosynthesis 1 Catabolism Anabolism Enzymes Metabolism 2 Metabolic Balancing Act Catabolism Enzymes involved in breakdown of complex
More informationCellular Respiration and Fermentation
LECTURE PRESENTATIONS For CAMPBELL BIOLOGY, NINTH EDITION Jane B. Reece, Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Robert B. Jackson Chapter 9 Cellular Respiration and Fermentation
More informationQuestion 1: Differentiate between (a) Respiration and Combustion (b) Glycolysis and Krebs cycle (c) Aerobic respiration and Fermentation (a) Respiration and combustion Respiration Combustion 1. It is a
More informationCellular Respiration and Fermentation
Cellular Respiration and Fermentation How do plants and animals obtain the glucose they need? Plants: Animals: Cellular Respiration the process that releases energy from food in the presence of oxygen
More informationCellular Respiration. Energy and oxygen
Cellular Respiration Energy and oxygen REview Energy is: The ability to do work Organelles that produces energy Mitochondria and chloroplasts Where do organisms get energy? All organisms need energy Plants
More informationBIOLOGY - CLUTCH CH.9 - RESPIRATION.
!! www.clutchprep.com CONCEPT: REDOX REACTIONS Redox reaction a chemical reaction that involves the transfer of electrons from one atom to another Oxidation loss of electrons Reduction gain of electrons
More informationChapter 9: Cellular Respiration: Harvesting Chemical Energy
AP Biology Reading Guide Name: Date: Period Chapter 9: Cellular Respiration: Harvesting Chemical Energy Overview: Before getting involved with the details of cellular respiration and photosynthesis, take
More informationLesson Overview. Cellular Respiration: An Overview. Lesson Overview. 9.1 Cellular Respiration: An Overview
9.1 Cellular Respiration: An Overview Chemical Energy and Food Food provides living things with the chemical building blocks they need to grow and reproduce. Food molecules contain chemical energy that
More informationCellular Respiration. Chapter 9
Cellular Respiration Chapter 9 1.A)Explain where organisms get the energy needed for life processes. Organisms get the energy they need from food. Energy stored in food is expressed as calories. Calorie
More information2/9/15 CONCEPTS OF BIOLOGY BIOSC 10 ANNOUNCEMENTS 2/9 CHAPTER 3 REVIEW. Review Q3 (chapter 3- notes allowed!)
BIOSC 10 ANNOUNCEMENTS /9 Review Q3 (chapter 3- notes allowed!) Lecture: chapter 4 Wed: Quiz covering chapters 3-4 Next Wed (/18)- Exam 1 (chapters 1-4) Extra Credit: answer all study guide Q s (guide
More informationCh. 9 Cell Respiration. Title: Oct 15 3:24 PM (1 of 53)
Ch. 9 Cell Respiration Title: Oct 15 3:24 PM (1 of 53) Essential question: How do cells use stored chemical energy in organic molecules and to generate ATP? Title: Oct 15 3:28 PM (2 of 53) Title: Oct 19
More informationChapter 5: Major Metabolic Pathways
Chapter 5: Major Metabolic Pathways David Shonnard Department of Chemical Engineering 1 Presentation Outline: Introduction to Metabolism Glucose Metabolism Glycolysis, Kreb s Cycle, Respiration Biosysthesis
More information2: Describe glycolysis in general terms, including the molecules that exist at its start and end and some intermediates
1 Life 20 - Glycolysis Raven & Johnson Chapter 9 (parts) Objectives 1: Know the location of glycolysis in a eukaryotic cell 2: Describe glycolysis in general terms, including the molecules that exist at
More information7 Cellular Respiration and Fermentation
CAMPBELL BIOLOGY IN FOCUS URRY CAIN WASSERMAN MINORSKY REECE 7 Cellular Respiration and Fermentation Lecture Presentations by Kathleen Fitzpatrick and Nicole Tunbridge, Simon Fraser University SECOND EDITION
More informationBIO16 Mapua Institute of Technology
BIO16 Mapua Institute of Technology The Marathon If somebody challenged you to a run a race, how should you prepare to win? 1. Practice 2. Eat the right foods 3. Drink the right liquids Energy All living
More informationCellular Respiration: Harvesting Chemical Energy
Chapter 9 Cellular Respiration: Harvesting Chemical Energy You should be able to: 1. Explain how redox reactions are involved in energy exchanges. Name and describe the three stages of cellular respiration;
More informationChapter 9. Cellular Respiration and Fermentation
Chapter 9 Cellular Respiration and Fermentation Energy flows into an ecosystem as sunlight and leaves as heat Photosynthesis generates O 2 and organic molecules, which are used in cellular respiration
More information