Q: What consists of thylakoid membranes surrounded by stroma?


Read this paragraph and choose the correct option from the provided answers:

A chloroplast consists of thylakoid membranes surrounded by stroma. The thylakoid membranes contain molecules of the green pigment chlorophyll.

 Choices:

- a photon

- a nucleus

- a stem

- a chloroplast


A:
a chloroplast