HORTICULTURE

HORTICULTURE SCIENCE

CROP PHYSIOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Where do the light-dependent reactions occur?
A
thylakoid membrane
B
stroma
C
mesophyll
D
mitochondria
Explanation: 

Detailed explanation-1: -Light-dependent reactions happen in the thylakoid membrane of the chloroplasts and occur in the presence of sunlight. The sunlight is converted to chemical energy during these reactions.

Detailed explanation-2: -The light-dependent reactions take place in the thylakoid membranes in the granum (stack of thylakoids), within the chloroplast. Figure: The two stages of photosynthesis: Photosynthesis takes place in two stages: light-dependent reactions and the Calvin cycle (light-independent reactions).

Detailed explanation-3: -In eukaryotic cells, both the light and dark reactions of photosynthesis occur within chloroplasts-the light reactions in the thylakoid membrane and the dark reactions within the stroma.

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