Question

In plants, chlorophyll molecules are located within sacs called __________, which in turn are suspended in the __________ of the __________.

Answer 1

In plants, chlorophyll is located in the thylakoid membranes inside chloroplasts, which are suspended in the stroma, the chloroplast's internal fluid.

Step-by-step explanation:

In plants, chlorophyll molecules are located within sacs called thylakoid membranes, which in turn are suspended in the stroma of the chloroplast. Chloroplasts, found predominantly in the mesophyll cells of leaves, have a double membrane envelope and contain these thylakoid membranes. The thylakoids are arranged in stacks known as grana, and chlorophyll is embedded in the thylakoid membranes.

Photosynthesis begins with the absorption of light by chlorophyll in the thylakoid membranes. The energy absorbed from sunlight initiates the light-dependent reactions of photosynthesis. The space outside the thylakoid membranes, the stroma, contains enzymes that facilitate the Calvin cycle, which is the second phase of photosynthesis where energy captured by chlorophyll is used to produce glucose.