Biology · Plant Physiology
Assertion (A): In plant cells, cellulose microfibrils in the primary cell wall are oriented perpendicular to the axis of cell elongation, allowing cells to elongate preferentially along their main axis. Reason (R): Cellulose microfibrils are synthesised by rosette terminal complexes (RTCs) in the plasma membrane that move along cortical microtubule tracks, depositing microfibrils in the direction of microtubule orientation.
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Both A and R are true, and R is the correct explanation of A✓
- 2Both A and R are true, but R is NOT the correct explanation of A
- 3A is true but R is false
- 4A is false but R is true
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Both A and R are true, and R is the correct explanation of A
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