Biology · Plant Physiology - Mineral Nutrition
Assertion (A): Boron deficiency selectively damages meristematic tissues and causes failure of reproductive structures, while mature leaf tissue remains largely unaffected. Reason (R): Boron forms stable covalent complexes with cis-diol groups in pectin and is thus structurally immobile in the phloem, being unable to be redistributed from mature to young tissue.
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1A is false but R is true
- 2A is true but R is false
- 3Both A and R are true, but R is NOT the correct explanation of A
- 4Both A and R are true, and R is the correct explanation of A✓
Correct answer
Both A and R are true, and R is the correct explanation of A
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