Direction: Choose the appropriate answer from the options given below :
______ is the rigid and protective layer around the plasma membrane which provides the mechanical support to the plant cell.
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Plasmadesmata
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Lamella
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Cell wall
-
Unit membrane
C
Correct answer
Explanation
The cell wall is the rigid outer layer made of cellulose in plant cells that provides structural support and protection. It lies outside the plasma membrane. Plasmodesmata are channels connecting cells. Lamella is the middle lamella between cells. Unit membrane refers to the membrane structure itself.