Biology
5th Edition
ISBN: 9781260487947
Author: BROOKER
Publisher: MCG
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Chapter 8, Problem 5TY
Summary Introduction
Introduction: RuBP is a five-carbon compound that is used in the Calvin cycle to produce glucose. The Calvin cycle is a light-independent reaction that utilizes RuBP as a substrate to generate ATP and NADPH along with carbohydrate, glucose.
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How is the difference made up in the Calvin cycle when more ATP is used than NADPH?
A. The Calvin cycle occurs half as often as the light-dependent reaction
B. The cyclic pathway creates more ATP
C. Additional ATP is created from glucose
D. Excess NADPH is reused in the light reaction
Typically the CO2 necessary for photosynthesis enters through the stomata of the plant leaves suppose petroleum jelly was used to coat the leaves out of this tomato blocked or closed
a) what effect will this have on the light reactions in these leaf cells
b) what effect will this have on the Calvin cycle in these leaf cells
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.
Chapter 8 Solutions
Biology
Ch. 8.1 - Core Skill: Modeling The goal of this modeling...Ch. 8.1 - Prob. 2CSCh. 8.1 - Can the Calvin cycle occur in the dark?Ch. 8.2 - Prob. 1CCCh. 8.2 - Prob. 2CCCh. 8.2 - Prob. 3CCCh. 8.2 - Prob. 4CCCh. 8.2 - Why does cyclic photophosphorylation provide an...Ch. 8.2 - Prob. 6CCCh. 8.3 - Prob. 1CC
Ch. 8.4 - Prob. 1CCCh. 8.4 - Prob. 1EQCh. 8.4 - Prob. 2EQCh. 8.4 - Prob. 3EQCh. 8.5 - Prob. 1CCCh. 8.5 - Prob. 2CCCh. 8 - The water necessary for photosynthesis a. is split...Ch. 8 - In PSII, P68o differs from the pigment molecules...Ch. 8 - Prob. 3TYCh. 8 - Prob. 4TYCh. 8 - Prob. 5TYCh. 8 - Prob. 6TYCh. 8 - Prob. 7TYCh. 8 - Prob. 8TYCh. 8 - Prob. 9TYCh. 8 - Prob. 10TYCh. 8 - Prob. 1CQCh. 8 - Prob. 2CQCh. 8 - Prob. 3CQCh. 8 - Discuss the advantages and disadvantages of being...Ch. 8 - Biotechnologists are trying to genetically modify...
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- Carbon dioxide is required for which of the following processes in photosynthesis? a) the Calvin cycle b) the splitting of water c) the absorption of water d) the production of ATP e) the light reactionarrow_forwardExplain 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_forwardThrough light reductions, ADP is phosphorylated into ATP via chemiosmosis. What is this process called? a. Reduction b. Calvin Cycle c. Photophosphorylation d. Photosynthesisarrow_forward
- Compare the light reaction with the calvin cycle of phosynthesis in plants,which of the following requires NADPH? a. light reaction alone b. the calvin cycle alone c. both light reaction and calvin cycle d. neither the light nor the calvinarrow_forwardWhich of the following questions is most relevant to understanding the Calvin cycle? A How does chlorophyll capture light? B How is ATP used in the formation of 3-carbon carbohydrates? C How is NADP+ reduced to NADPH? D How is ATP produced in chemiosmosis?arrow_forwardIn the photosynthetic formation of ATP, the enzyme ATP synthase couples the synthesis of ATP to: A. the diffusion of protons B. the reduction of NADP+ C. the excitation of chlorophyll D. the reduction of chlorophyll E. CO2 fixationarrow_forward
- What is the difference between the cyclic and noncyclic pathways of photosynthesis? a The cyclic pathway uses electron transport. b The cyclic pathway is light-dependent. c The noncyclic pathway produces NAPDH. d The noncyclic pathway produces ATP.arrow_forwardPhotorespiration is avoided in C4 plants becausea. these plants separate the formation of a four-carbon molecule fromthe rest of the Calvin cycle in different cells.b. these plants carry out only anaerobic respiration.c. the enzyme PEP carboxylase functions to maintain high CO2concentrations in the bundle-sheath cells.d. all of the above.e. a and c onlyarrow_forwardWhich 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_forward
- Cooperation of the two photosystems is required for (a) ATP synthesis (b) reduction of NADP+ (c) cyclic photophosphorylation (d) generation of a proton-motive force (e) all of the abovearrow_forwardDraw a pathway diagram showing the involvement of Rubisco in the Calvin cycle andphotorespiration How is photooxidation affected by higher temperaturesarrow_forwardIf ribulose bisphosphate were removed from a chloroplast, which of the following statements would BEST describe the immediate result? b)ATP could not be produced in the thylakoid a) CO2 could not enter the Calvin cycle d) Light energy could not be trapped in the grana c) 02 could not enter the Calvin Cyclearrow_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