17
QuizMultiple Choice

Cellular Respiration — Unit test

Question 17 • First Semester Biology

Which statement best describes what a thylakoid does during photosynthesis?

Answer
A
surrounds the grana and keeps them moist
B
enables the light-dependent reactions to occur
C
combines carbon dioxide and water to make sugar
D
helps the light-independent reactions to occur

Explanation

Thylakoids are flattened membrane sacs inside chloroplasts. Their membranes contain chlorophyll and other components that capture light energy and carry out the light-dependent reactions, so “enables the light-dependent reactions to occur” is the best description. Sugar is made during the light-independent reactions, not by the thylakoid itself.

AI-written and checked against the verified answer.

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