Biology: Concepts and Investigations
5th Edition
ISBN: 9781260259049
Author: Hoefnagels
Publisher: MCG
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Chapter 6, Problem 11WIO
Summary Introduction
To compare:
The number of ATP molecules required to produce one glucose molecule in photosynthesis with the number of ATP molecules generated per glucose in aerobic respiration. Also, explain how these numbers compares to the ATP yield from fermentation.
Introduction:
The chemical process in which energy required for cellular functions is synthesized using oxygen is known as aerobic
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For the theoretical maximum yield of ATP per glucose molecule oxidized by aerobic respiration, we will assume that for each pair of electrons transferred to the electron transport chain by NADH, 3 ATP will be generated; for each electron pair transferred by FADH2, 2 ATP will be generated. If NADH is produced in the cytoplasm, it will only generate 2 ATP but NADH produced in the mitochondria will release 3 ATP.
How many molecules of ATP are produced when 10 molecules of NADH formed during the Krebs cycle enter the electron transport chain?
For the theoretical maximum yield of ATP per glucose molecule oxidized by aerobic respiration, we will assume that for each pair of electrons transferred to the electron transport chain by NADH, 3 ATP will be generated; for each electron pair transferred by FADH2, 2 ATP will be generated. If NADH is produced in the cytoplasm, it will only generate 2 ATP but NADH produced in the mitochondria will release 3 ATP.
How many molecules of ATP are produced when 10 molecules of FADH2 enter the electron transport chain?
For the theoretical maximum yield of ATP per glucose molecule oxidized by aerobic respiration, we will assume that for each pair of electrons transferred to the electron transport chain by NADH, 3 ATP will be generated; for each electron pair transferred by FADH2, 2 ATP will be generated. If NADH is produced in the cytoplasm, it will only generate 2 ATP but NADH produced in the mitochondria will release 3 ATP.
How many molecules of ATP may be produced when 8 molecules of NADH from glycolysis enter the electron transport chain? *
Chapter 6 Solutions
Biology: Concepts and Investigations
Ch. 6.1 - Why do all organisms need ATP?Ch. 6.1 - What are the three general ways to generate ATP...Ch. 6.1 - Prob. 3MCCh. 6.1 - Prob. 4MCCh. 6.2 - Prob. 1MCCh. 6.2 - What occurs in each of the three stages of...Ch. 6.3 - Prob. 1MCCh. 6.3 - Prob. 2MCCh. 6.4 - Prob. 1MCCh. 6.4 - Prob. 2MC
Ch. 6.4 - Prob. 3MCCh. 6.5 - Prob. 1MCCh. 6.5 - Prob. 2MCCh. 6.5 - Prob. 3MCCh. 6.5 - Prob. 4MCCh. 6.6 - Prob. 1MCCh. 6.6 - How does the actual ATP yield compare to the...Ch. 6.7 - Prob. 1MCCh. 6.7 - Prob. 2MCCh. 6.8 - Prob. 1MCCh. 6.8 - Prob. 2MCCh. 6.8 - Prob. 3MCCh. 6.9 - Prob. 1MCCh. 6.9 - Why must the first metabolic pathways have been...Ch. 6.9 - What is the evidence that photosynthesis may have...Ch. 6.10 - What hypothesis were the researchers testing, and...Ch. 6.10 - Prob. 2MCCh. 6 - Which of the following best describes aerobic...Ch. 6 - Which stage in cellular respiration produces the...Ch. 6 - What is the role of ATP synthase? a. It uses ATP...Ch. 6 - Prob. 4MCQCh. 6 - Prob. 5MCQCh. 6 - What is endosymbiosis? a. A type of fermentation...Ch. 6 - Respiration contains the Latin word root spiro,...Ch. 6 - All steps of cellular respiration are closely...Ch. 6 - How might a mitochondrion's double membrane make...Ch. 6 - Health-food stores sell a product called pyruvate...Ch. 6 - At what point does O2 enter the energy pathways of...Ch. 6 - Describe the energy pathways that are available...Ch. 6 - Prob. 7WIOCh. 6 - Describe how aerobic respiration occurs in...Ch. 6 - Prob. 9WIOCh. 6 - Explain the fact that species as diverse as humans...Ch. 6 - Prob. 11WIOCh. 6 - Prob. 1PITCh. 6 - Prob. 2PITCh. 6 - Prob. 3PITCh. 6 - Where would fermentation, anaerobic respiration,...
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- For the theoretical maximum yield of ATP per glucose molecule oxidized by aerobic respiration, we will assume that for each pair of electrons transferred to the electron transport chain by NADH, 3 ATP will be generated; for each electron pair transferred by FADH2, 2 ATP will be generated. If NADH is produced in the cytoplasm, it will only generate 2 ATP but NADH produced in the mitochondria will release 3 ATP. 1. How many molecules of ATP are produced when 10 molecules of FADH2 enter the electron transport chain? 2. How many molecules of ATP may be produced when 8 molecules of NADH from glycolysis enter the electron transport chain? 3. How many molecules of ATP are produced when 10 molecules of NADH formed during the Krebs cycle enter the electron transport chain? 4. n a molecule of glucose, how many molecules of FADH2 will be produced? 5. n a complete breakdown of a molecule of glucose, how many molecules of NADH had been produced?arrow_forwardFor many years, the total number of molecules of ATP produced for each molecule of glucose in aerobic respiration was given as 38. Later, it was estimated to be closer to 36, and now it is believed tobe closer to 30. What factors must be considered in estimating the yield of ATP molecules? Why are the recent numbers considered to be approximate values?arrow_forwardConsider a cell with ATP synthase deficiency (Assume that the deficiency is isolated and will not influence the function of other respiration components). In these cells/tissues, determine the following from the catabolism of the 2.5 moles of the disaccharide lactose (will be hydrolyzed first to yield glucose and galactose). Net ATP from glycolysis ATP from oxidative decarboxylation (if applicable) ATP formed from Krebs cycle (if applicable) Total net ATParrow_forward
- Briefly explain the mechanism by which ATP synthase produces ATP.List three locations in which ATP synthases are found.arrow_forwardUse drawings, flow charts, or a table to compare and contrast the energy inputs and outputs during each phase of aerobic respiration vs. fermentation. Be sure to directly discuss inputs and outputs of BOTH processes. Include all phosphorylated compounds and high-energy electron carriers, and briefly EXPLAIN HOW these are produced at each stage of respiration. WHERE does each stage happen? Explain HOW energy from high energy electron carriers is converted to ATP during respiration in mitochondria or aerobic bacteria.arrow_forwardFor the theoretical maximum yield of ATP per glucose molecule oxidized by aerobic respiration, we will assume that for each pair of electrons transferred to the electron transport chain by NADH, 3 ATP will be generated; for each electron pair transferred by FADH2, 2 ATP will be generated. If NADH is produced in the cytoplasm, it will only generate 2 ATP but NADH produced in the mitochondria will release 3 ATP. In a complete breakdown of a molecule of glucose, how many molecules of NADH had been produced?arrow_forward
- For the theoretical maximum yield of ATP per glucose molecule oxidized by aerobic respiration, we will assume that for each pair of electrons transferred to the electron transport chain by NADH, 3 ATP will be generated; for each electron pair transferred by FADH2, 2 ATP will be generated. If NADH is produced in the cytoplasm, it will only generate 2 ATP but NADH produced in the mitochondria will release 3 ATP. In a molecule of glucose, how many molecules of FADH2 will be produced? *arrow_forwardThe graph shows how the free‑energy change for the hydrolysis of ATP varies as a function of Mg2+ concentration. Note that pMg = –log[Mg2+]. What does the graph tell you about the relationship between Mg2+ concentration and ATP hydrolysis? What is the mechanism that explains the relationship between Mg2+ concentration and ATP hydrolysis?arrow_forwardCalculate the total ATP produced in the catabolism of glucose. Follow the table provided below. If NADH = 3 ATP, If NADH = 2.5 АТР, FADH, 1.5 FADH, = 2 ATP ATP Glycolysis Pyruvate shuttle Krebs cycle ETC TOTAL If NADH = 3 ATP, If NADH = 2.5 %3D FADH2 = 2 ATP ATP, FADH2 = 1.5 ATP Alcohol Fermentation Lactic acid fermentationarrow_forward
- DCCD (diocyclohexylcarbodiimide) inhibits oxidative phosphorylation when the substrate is mitochondrial NADH. DCCD is a drug that binds to ATP synthase and blocks proton transport through the ion channel. a) Explain what the consequences of DCCD on cellular energy production are. b) Suggest at least one other cellular effect of DCCD and explain this effect.arrow_forward*Determine the ATP yield from the metabolism of one molecule of glucose under the following conditions: a) b) c) in a mammalian muscle cell carrying out anaerobic glycolysis. in Escherichia coli, an aerobic prokaryote in a mammalian brown fat cell, in which electron transport occurs without producing ATParrow_forwardA new ATP-producing protein is discovered that couples ATP production to the oxidation of NADPH by oxidative phosphorylation. Assume that the value of ΔGo for ATP synthesis is 30 kJ•mol−1. If this protein only produces 1 molecule of ATP per reaction that consumes one NADPH: a. How much free energy is wasted, under standard conditions?b. How many more ATP molecules could be created by a perfectly efficient electron transport chain from one NADPH?arrow_forward
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