First slide

Plant-Water Relations

Question

Movement of micromolecules inside or outside the plant cell is governed by

Easy

A

Cell wall and Cell membrane
B

Cell wall and Tonoplast
C

Tonoplast and Cell membrane
D

Tonoplast alone

Solution

Cell wall is freely permeable to micromolecules, therefore cannot regulate the movement of micromolecules inside or outside the cell. Cell wall provides barrier to undesirable macromolecules.
Cell membrane and tonoplast are differentially- or selectively permeable in nature, therefore can regulate movement of substances inside or outside the cell.

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