Refer to the given figures of bacteria cell and Nostoc and …

Biology Biological Classification Image Based Problems Single Correct MCQ

Published on: August 11, 2026

Refer to the given figures of bacteria cell and Nostoc and choose the option which shows correct label for the structures marked as A,B,C,D and E?

-cell wall, -cell wall, -Mucilagenous sheath, -cell membrane,

-cell membrane, -cell membrane, -Cell membrane, -cell wal,

-Heterocyst, -DNA, -DNA, -DNA,

-DNA,(E)-Mucilagenous sheath -Heterocyst, (E)-Mucilagenous sheath -Heterocyst, (E)-Cell wall -Heterocyst, (E)-Mucilagenous sheath

Text Solution

Verified by Experts

The correct answer is:

→ Mucilaginous sheath (outer protective layer)

→ Cell wall

→ DNA (nucleoid region)

→ Heterocyst (special nitrogen-fixing cell in Nostoc)

(E) → Cell membrane

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