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

Question

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

Quizplus · Accepted Answer

Elevated concentrations of oxygen inhibit carbon fixation reactions in the chloroplast stroma, which is present only in cell II. Therefore, the correct answer is B.

Use the Following Figure to Answer the Question