Study Guide for Campbell Biology
11th Edition
ISBN: 9780134443775
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Jane B. Reece, Martha R. Taylor, Michael A. Pollock
Publisher: PEARSON
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Chapter 10, Problem 3TYK
The immediate product of the Calvin cycle is glyceraldehyde-3-phosphate (G3P), a three-carbon molecule. What is most of this G3P used for?
- a. It provides the energy required to synthesize ATP.
- b. It is used as the starting point for the synthesis of six-carbon sugars, such as glucose.
- c. It is used to regenerate the RuBP that is required for the Calvin cycle.
- d. It is combined with CO2 to produce four-carbon molecules such as oxaloacetate.
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Students have asked these similar questions
If 30 molecules of CO2 enter the Calvin Cycle,a. How many molecules of phosphoglycerate (PGA) will be produced?
b. How many molecules of glyceraldehyde phosphate (PGAL) leave the cycle?
c. How many molecules of ribulose bisphosphate (RuBP) will be produced?
d. How many molecules of ATP will be utilized?
In the carbon reduction phase of the Calvin cycle, electrons from NADPH are donated to a metabolic intermediate to form G3P molecules.
Which statement is NOT true regarding G3P?
A.
G3P molecules are involved in the regeneration of RuBP.
B.
G3P molecules affect the activity of the enzyme rubisco.
C.
G3P molecules have more potential energy than PGA molecules.
D.
G3P molecules are used to synthesize glucose and other sugars.
The end product(s) of the light independent reactions (Calvin cycle) of photosynthesis is glyceraldehyde-3-phosphate. Where (if any) can this product enter into catabolic metabolism to make ATP for the cell?
Select one:
a. the Kreb’s cycle since the end product is pyruvate
b. the energy investment stage (step 1) of glycolysis
c. the energy payoff stage of glycolysis
d. oxidative phosphorylation since the end product(s) are ATP and NADH
Chapter 10 Solutions
Study Guide for Campbell Biology
Ch. 10 - Prob. 1IQCh. 10 - Fill in the blanks in the following overview of...Ch. 10 - An action spectrum shows the relative rates of...Ch. 10 - Describe the components of a photosystem.Ch. 10 - Identify the components of linear electron flow in...Ch. 10 - a. On the diagram in Interactive Question 10.5,...Ch. 10 - a. In the light, the proton gradient across the...Ch. 10 - Label the three phases (a, b, and c) and key...Ch. 10 - What are two possible explanations for the...Ch. 10 - a. Where does the Calvin cycle take place in C4...
Ch. 10 - You have already filled in the blanks in several...Ch. 10 - Create a concept map to confirm your understanding...Ch. 10 - Which of the following processes or structures is...Ch. 10 - A plant is growing under bright lights in a sealed...Ch. 10 - The immediate product of the Calvin cycle is...Ch. 10 - A spectrophotometer can be used to measure the a....Ch. 10 - Accessory pigments within chloroplasts are...Ch. 10 - The following diagram is an absorption spectrum...Ch. 10 - Linear electron flow along with chemiosmosis in...Ch. 10 - The chlorophyll known as P680+ has its electron...Ch. 10 - The enzyme rubisco a. uses NADPH and ATP to make...Ch. 10 - In photosynthesis, the splitting of water a....Ch. 10 - The reactions of the Calvin cycle occur in the a....Ch. 10 - A difference between electron transport in...Ch. 10 - How does cyclic electron flow differ from linear...Ch. 10 - Prob. 14TYKCh. 10 - Prob. 15TYKCh. 10 - Prob. 16TYKCh. 10 - RuBP carboxylase-oxygenase is the enzyme that a....Ch. 10 - Prob. 18TYKCh. 10 - CAM plants avoid photorespiration by a. keeping...Ch. 10 - Prob. 20TYKCh. 10 - Prob. 21TYKCh. 10 - Prob. 22TYKCh. 10 - Prob. 23TYKCh. 10 - a. respiration b. photosynthesis c. both...Ch. 10 - a. respiration b. photosynthesis c. both...Ch. 10 - a. respiration b. photosynthesis c. both...
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- At 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_forwardWhich 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.arrow_forwardThe ultimate source of energy in our planet is sunlight. In the first stage of photosynthesis, light energy is captured in chlorophyll-containing reaction centers (PSII and PSI). What is the first step in the capture of light energy at PSII? a. The energy carriers ATP and NADPH + H+ are synthesized. b. CO2 reacts with the C5 sugar ribulose-1,5-bis-phosphate in the first step of the Calvin cycle. c. Starch is synthesized. d. H2O is photolyzed and its electrons are captured by special chlorophyll molecules. e. Sucrose is synthesized from glucose and fructose.arrow_forward
- Which 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_forwardWhich of the following terms regarding the Calvin cycle are mismatched? a.) rubisco and ATP production b.) PGAL and rearranged from glucose c.) carbon fixation and stromaarrow_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
- Explain briefly why the following ideas are false. a. Photosynthesis is the food-making process done by plants. b The Calvin cycle was called the dark reactions because it can only take place in the absence of light. c. Photosynthesis can only be powered by sunlight.arrow_forwardWhy is there a difference in the ATP that is being produced by the NADH molecule coming from Glycolysis which could be 4-6 for 2 NADH molecules? a.The conversion of reduction of NAD+ to NADH is a highly energetic process. b.Glycolysis uses 2 ATP for the production of NADH. c.NADH molecules from Glycolysis is not energetic enough to produce the 3 ATP. d.It will be dependent on the pathway that the NADH will be undergoing.arrow_forwardWhich of the following statements is TRUE? Select one: a. The immediate product of the light energy absorbed by the P680 reaction center is used to produce NADPH. b. In cyclic photophosphorylation, the chlorophyll is reduced by electrons liberated from water molecules. c. The O2 gas produced during photosynthesis is derived from CO2. d. In noncyclic photophosphorylation, electrons from water are used directly for the reduction of P700. e. All of the statements are false.arrow_forward
- You have discovered a novel peptide that, when administered to plant cells, spontaneously inserts into the thylakoid membranes and forms a channel that lets protons cross the membrane. You treat plant cells growing normally with your peptide. Which of the following statements correctly describes the effect on photosynthesis shortly after the addition of the peptide? Select all that are true. a. The rate of Glyceraldehyde 3-phosphate synthesis will decrease b. The rate of oxygen production will be unaffected c. The rate of Glyceraldehyde 3-phosphate synthesis will increase d. The rate of oxygen production will decrease e. The rate of oxygen production will increase f. The rate of Glyceraldehyde 3-phosphate synthesis will be unaffectedarrow_forwardIf 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_forwardCompare the light reaction with the calvin cycle of phosynthesis in plants,which of the following requires glucose? a. light reaction alone b. the calvin cycle alone c. both the ligh reaction and calvin cycle d. neither the light nor the calvin cyclearrow_forward
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