Biology

Grana are stacks of thylakoid membranes within chloroplasts. Their primary function is to increase the surface area for light absorption. The thylakoid membranes contain chlorophyll and other pigments that are essential for capturing light energy during photosynthesis. By stacking the thylakoids into grana, the surface area of the thylakoid membranes is greatly increased. This provides more space for pigment molecules, allowing for more efficient light absorption and the initiation of the light - dependent reactions of photosynthesis.

The other options are incorrect:

Option B: Glucose is synthesized in the stroma d...