53) What would be a likely consequence of a mutation in plants that results in a photorespiration deficiency?
A) Photosynthetic efficiency would be
... [Show More] reduced at low light intensities.
B) Cells would carry on the Calvin cycle at a much slower rate.
C) There would be more cellular damage from harmful products of the light reactions of photosynthesis.
D) Less oxygen would be produced by photosynthesis. Answer: C
Bloom's Taxonomy: Application/Analysis Section: 10.4
54) Compared to C3 plants, C4 plants .
A) can continue to fix CO2 even at lower CO2 concentrations and higher oxygen concentrations
B) have higher rates of photorespiration
C) do not use rubisco for carbon fixation
D) make a four-carbon compound, oxaloacetate, which is then delivered to the citric acid cycle in mitochondria
Answer: A
Bloom's Taxonomy: Application/Analysis Section: 10.4
18) Use the following figure to answer the question.
Which of the following statements is true concerning the accompanying figure?
A) It represents a C4 photosynthetic system.
B) It represents an adaptation that maximizes photorespiration.
C) It represents a C3 photosynthetic system.
D) It represents a CAM photosynthetic system. Answer: A
Bloom's Taxonomy: Knowledge/Comprehension Section: 10.4
19) Use the following figure to answer the question.
Referring to the accompanying figure, where would elevated concentrations of oxygen inhibit carbon fixation reactions?
A) cell I only
B) cell II only
C) neither cell I nor cell II
D) both cell I and cell II Answer: B
Bloom's Taxonomy: Application/Analysis Section: 10.4
57) Which of the following statements summarizes the metabolic results of photorespiration?
A) It produces ATP and consumes oxygen and carbon dioxide.
B) It produces carbon dioxide and consumes ATP and oxygen.
C) It produces oxygen and consumes ATP and carbon dioxide.
D) It produces oxygen and ATP and consumes carbon dioxide. Answer: B
Bloom's Taxonomy: Knowledge/Comprehension Section: 10.4 [Show Less]