Question

1. the stacks of thylakoids are called

a. grana
b. stroma
c. chlorophyll
d. inner membrane

Explanation:

Thylakoids are membrane - bound compartments inside chloroplasts. Stacks of thylakoids are known as grana. Stroma is the fluid - filled space surrounding the grana. Chlorophyll is the pigment present in the thylakoid membranes. The inner membrane is one of the two membranes of the chloroplast envelope.

Answer:

A. Grana