Campbell Biology
12th Edition
ISBN: 9780135188743
Author: Urry
Publisher: PEARSON
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Textbook Question
Chapter 10, Problem 3TYU
How is photosynthesis similar in C4 plants and CAM plants?
(A) In both cases, only photosystem I is used.
(B) Both types of plants make sugar without the Calvin cycle.
(C) In both cases, rubisco is not used to fix carbon initially.
(D) Both types of plants make most of their sugar in the dark.
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43) Which of the following is false?
A) C3, C4, and CAM plants use the light dependent reactions to harvest energy from
the sun and light independent reactions to turn that energy into sugar.
B) C3 plants use photorespiration (as opposed to the Calvin Cycle) when CO2 is low
) C4 plants utilize a specialized carbon fixation enzyme and a unique cell structure
to reduce the problems of photorespiration
D) CẢM plants perform all of the steps of photosynthesis at night to avoid e
photorespiration
Which best describes cyclic photophosphorylation?
(a) it uses two photosystems (b) it produces water as a waste product (c) it produces oxygen as a waste product (d) it utilizes a single photosystem
(e) it uses substrate level phosphorylation to produce ATP
Plants have evolved by developing mechanisms that promote entry of CO, into the Calvin Cycle (CC) to limit
photorespiration when environmental conditions tend to favor the latter. This is because photorespiration 1) is
energetically inefficient (consuming more ATP than the CC alone) and 2) it does not produce any sugars that
can be "fed" into cellular respiration to produce lots more ATP.
A) Under what environmental conditions does photorespiration "outcompete" that of the CC? Specifically, what
mechanism is responsible for committing the cell to photorespiration and what type of plant does not have any
"safeguards" to ensure that the CC is performed rather than photorespiration?
B) Describe the mechanisms employed by two types of plants to minimize photorespiration and ensure that the
CC is carried out even when environmental conditions are not in their favor. Be sure to identify 1) the type of
plant, 2) its natural environment and how it affects the plant's ability to perform the CC,…
Chapter 10 Solutions
Campbell Biology
Ch. 10.1 - Prob. 1CCCh. 10.1 - Prob. 2CCCh. 10.2 - Prob. 1CCCh. 10.2 - Prob. 2CCCh. 10.2 - Prob. 3CCCh. 10.3 - Prob. 1CCCh. 10.3 - Prob. 2CCCh. 10.3 - Prob. 3CCCh. 10.4 - Prob. 1CCCh. 10.4 - Prob. 2CC
Ch. 10.4 - Prob. 3CCCh. 10.4 - Prob. 4CCCh. 10.4 - Prob. 5CCCh. 10.5 - Prob. 1CCCh. 10.5 - Prob. 2CCCh. 10.5 - Prob. 3CCCh. 10.5 - Prob. 4CCCh. 10.6 - Prob. 1CCCh. 10 - Prob. 10.1CRCh. 10 - Prob. 10.2CRCh. 10 - Prob. 10.3CRCh. 10 - Prob. 10.4CRCh. 10 - Prob. 10.5CRCh. 10 - Prob. 10.6CRCh. 10 - The light reactions of photosynthesis supply the...Ch. 10 - Which of the following sequences correctly...Ch. 10 - How is photosynthesis similar in C4 plants and CAM...Ch. 10 - Prob. 4TYUCh. 10 - Prob. 5TYUCh. 10 - In mechanism, photophosphorylation is most similar...Ch. 10 - Prob. 7TYUCh. 10 - Prob. 8TYUCh. 10 - EVOLUTION CONNECTION Photorespiration can decrease...Ch. 10 - SCIENTIFIC INQUIRY MAKE CONNECTIONS The following...Ch. 10 - Prob. 11TYUCh. 10 - SYNTHESIZE YOUR KNOWLEDGE Watennelon snow in...
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