BIO NMDCAT CELL STRUCTURE & FUNCTION

nmdcat.online July 3, 2026

65. The structure that forms a structural bridge between the cytoplasm of neighboring plant cells, crossing through the plasmodesmata channel, is the

A. Desmosome line

B. Desmotubule (derived from smooth ER)

✓

C. Contractile actin ring

D. Lignified pore ring

📝 Explanation

A desmotubule is a continuous tube of specialized endoplasmic reticulum that runs through the center of a plasmodesmatal channel.

📖 Additional Information

Desmosome line
Desmotubule (derived from smooth ER)
Contractile actin ring
Lignified pore ring

A desmotubule is a continuous tube of specialized endoplasmic reticulum that runs through the center of a plasmodesmatal channel.

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