STANDARDBotany-Algae
STANDARD Botany Pyrenoids MCQ Question
Type: MCQ-conceptual-Medium
Pyrenoids are made up of
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
Correct Answer
Option C
Detailed 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 synthesized in the cytosol rather than in the chloroplast.
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