Pyrenoids are made up of

Options

A. Core of starch surrounded by sheath of protein
B. Core of protein surrounded by fatty sheath
C. Proteinaceous centre and starchy sheath
D. Core of nucleic acid surrounded by protein sheath

Answer

C

Explanation

Pyrenoids are sub-cellular micro-compartments found in chloroplasts of many algae, and in a single group of land plants, the hornworts. A starch sheath is often formed or deposited at the periphery of pyrenoids, even when that starch is synthesised in the cytosol rather than in the chloroplast.