Question

Identify A and B from the below figure.

(a) A – Lumen; B – Thylakoids

(b) A – Thylakoids; B – Lumen

(c) A – Stroma; B – Grana

(d) A – Grana; B – Stroma

Answer 1

Correct answer is (b) A – Thylakoids; B – Lumen

For explanation I would say: Thylakoids resemble the structure of a coin, a stack of thylakoids looks like a stack of coins known as grana. The lumen is a connection between two or more grana.