Chapter 161 of 2363 min read
Tissues and tissue systems
Why this is asked: Living versus dead at maturity is the axis NEET tests: collenchyma stays alive and can keep dividing, giving flexible support to organs still growing, while sclerenchyma is dead and uniformly lignified, giving rigid support wherever growth has already stopped — options like to swap "living" and "dead" between the two.
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- •Given below are two statements: Statement I: Parenchyma is living but collenchyma is dead tissue. Statement II: Gymnosperms lack xylem vessels but the presence of xylem vessels is characteristic of angiosperms. In the light of the above statements, choose the correct answer from the options given below:
- •In the given figure, which component has thin outer walls and highly thickened inner walls?
Open this in the full syllabus view · Botany