chapter 8 quiz

Question 1

The reactions of the Calvin cycle take place in which of the following regions of the chloroplast?

Answer 1

stroma of the chloroplast

Question 2

Which of the following statements best explains why CAM plants can keep stomata closed in the daytime, thus reducing water loss?

Answer 2

They fix CO2 into organic acids during the night when temperatures are cooler.

Question 3

Where is the electron transport chain associated with photophosphorylation located in plant cells?

Answer 3

thylakoid membranes of chloroplasts

Question 4

If plant cells are treated with a fluorescent molecule that specifically binds to ATP synthase complexes, where would you expect to observe fluorescence in the labeled cells?

Answer 4

thylakoid membranes and inner mitochondrial membranes

Question 5

Which of the following molecules are products of the light reactions of photosynthesis that are utilized in the Calvin cycle?

Answer 5

ATP and NADPH

Question 6

In chemiosmosis in mitochondria, protons flow from the intermembrane space into the matrix. In what direction do protons flow during chemiosmosis in chloroplasts?

Answer 6

from the thylakoid space to into the stroma

Question 7

Which type of organism listed below is capable of performing photosynthesis?

Answer 7

autotrophs

Question 8

Photorespiration occurs when rubisco combines RuBP with which of the following molecules?

Answer 8

O2

Question 9

Which statement below best summarizes the role of the Calvin cycle in photosynthesis?

Answer 9

production of sugar from carbon dioxide