Biology: The Dynamic Science (MindTap Course List)
4th Edition
ISBN: 9781305389892
Author: Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher: Cengage Learning
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Chapter 8, Problem 7TYK
Summary Introduction
Introduction:
Photosynthesis leads to the production of glucose and oxygen, which comes from the reduction of carbon dioxide and oxidation of water respectively. Carbon fixation that takes place during the Calvin cycle, which proceeds in the absence of light.
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Which of the following is not true regarding the Calvin cycle?
A. water is used during the reactions
B. RuBP is regenerated
C. the product of the cycle is G3P
D. glucose is ultimately produced by the reactions
E. ATP is used during the reactions
Which of the following statements about the Calvin-Benson cycle is TRUE?
Select one:
a. Blocking light causes 3PG to accumulate.
b. All the statements are false.
c. Rubisco catalyzes the formation of RuBP.
d. ATP and NADPH + H+ are required to regenerate RuBP.
e. More molecules of NADPH than ATP are required per cycle.
How many times does a calvin cycle need to be run through in order to produce on glucose? (assume three co2 are included with each turn)
a. two
b. four
c. six
d. one
e. none of the above
Chapter 8 Solutions
Biology: The Dynamic Science (MindTap Course List)
Ch. 8.1 - What are the two stages of photosynthesis?Ch. 8.1 - In which organelle does photosynthesis take place...Ch. 8.2 - What is the difference in function between the...Ch. 8.2 - Prob. 2SBCh. 8.2 - What is the difference between the linear electron...Ch. 8.3 - What is the reaction that rubisco catalyzes? Why...Ch. 8.3 - How many molecules of carbon dioxide must enter...Ch. 8.4 - Prob. 1SBCh. 8.4 - Prob. 2SBCh. 8.4 - How are carbon fixation and the Calvin cycle...
Ch. 8.5 - How are the reactants and products of...Ch. 8 - An organism exists for long periods by using only...Ch. 8 - Prob. 2TYKCh. 8 - Which of the following is a correct step in the...Ch. 8 - Prob. 4TYKCh. 8 - Prob. 5TYKCh. 8 - Which of the following statements about the C4...Ch. 8 - Prob. 7TYKCh. 8 - The oxygen released by photosynthesis comes from:...Ch. 8 - You bite into a spinach leaf. Which one of the...Ch. 8 - Animal metabolism and plant metabolism are related...Ch. 8 - Discuss Concepts Suppose a garden in your...Ch. 8 - Prob. 12TYKCh. 8 - Discuss Concepts Like other accessory pigments,...Ch. 8 - Prob. 14TYKCh. 8 - Prob. 15TYKCh. 8 - Prob. 16TYKCh. 8 - Photosynthesis directly opposes respiration in...Ch. 8 - Prob. 2ITDCh. 8 - Prob. 3ITDCh. 8 - Prob. 4ITD
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- If an enzyme in the Calvin cycle were knocked out, then a the light-dependent reactions would increase. b the light-dependent reactions would stop. c the light-dependent reactions would diminish. d the light-dependent reactions would be unaffected.arrow_forwardWhich of the following is an incorrect statement about the Calvin cycle? A.The main inputs to the reactions are NADPH, ATP, and CO2. B.The main outputs of the reactions are NADP+ , ADP, and sugar. C.More NADPH is used than ATP during the Calvin cycle. D.Carbon fixation is the first step of the processarrow_forwardAt the end of the calvin cycle, this molecule is regenergated: Select one: a. a five carbon molecule, ribulose bis-phosphate b. a six carbon molecule, glucose c. a polymer, cellulose d. a three carbon molecule, glyceraldehyde-3-phosphate e. a four carbon molecule, malatearrow_forward
- Phosphofructokinase (PFK) catalyzes a regulatory step in respiration. PFK is inhibited by high level of which of the following molecules? Select one: A. AMP and ATP B. citrate and CO2 O C. ATP and citrate D. glucose and NAD+ E. AMParrow_forwardThe G3P produced during the Calvin Cycle Reactions can be used by plants to make all of the following except?A. amino acidsB. glycerolC. fatty acidsD. starchE. waterarrow_forwardAlthough the Calvin cycle does not depend on light, it generally does not occur during night. What is the reason for this? Select one: a. The Calvin cycle cannot proceed because the products of light reaction are insufficient. b. Enzymes do not function normally due to the low temperature. c. Carbon cannot be fixed because of the low concentration of carbon dioxide. d. Energy is not provided because the electron transport chain is used for respiration. e. Carbon dioxide is not available because the stomata is closed.arrow_forward
- Which of the following descriptions about photorespiration is not correct? Select one: a. Rubisco binds O2 instead of CO2. b. Carbon dioxide is released without producing ATP. c. It limits damaging products of light reactions that build up in the absence of the Calvin cycle at low CO2 concentrations. d. Peroxisomes and mitochondria rearrange and split the compound made by rubisco to fix CO2. e. It occurs in hot and dry conditions.arrow_forwardWhat catalyzes the rate-limiting step of the Calvin Cycle?a. ribulose phosphate isomeraseb. RuBisCOc. phosphoglycerate kinased. PEP carboxylasearrow_forwardNADH (Select all choices that apply) A. is an oxidized molecule B. is the reduced form of NAD+ C. is produced in photosynthesis non-cyclic reactions D. is responsible for allowing more ATP production than FADH2 E. plays a role in glycolysis, transition, Krebs cycle and the ETSarrow_forward
- Ten glyceraldehyde-3-phosphate (G3P) produced by the Calvin cycle is used to produce 5 glucose. a. b. 6 RuBP. C. 10 bisphosphoglycerate All of these. None of these. b e. d C aarrow_forwardPut the following pathways in the order they occurduring aerobic respiration.a. electron transfer phosphorylationb. acetyl–CoA formationc. citric acid cycled. glycolysisarrow_forwardWhich of the following statements concerning ATP synthesis is NOT true? a. The open conformation of the ATP synthase is for releasing ATP. b. The gamma subunit in the stalk responds to the flow of H+ and rotates the assembly counterclockwise and thus change the conformations of the active site to synthesize ATP. c. The tight conformation of the ATP synthase is for converting ADP and phosphate to ATP. d. The loose conformation of the ATP synthase is for binding ADP and phosphate. e. Ten protons are required to catalyze the rotation of the subunits so that one ATP is synthesized. Clear my choicearrow_forward
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Photosynthesis & Respiration | Reactions | Chemistry | FuseSchool; Author: FuseSchool - Global Education;https://www.youtube.com/watch?v=3XIyweZg6Sw;License: Standard YouTube License, CC-BY