Question
Which one of the following tissues in plants is usually without protoplast and regarded as dead cells?
NDA
General Ability
General Science
2026
NDA 2026 (Phase 1)
NDA General Ability Question (2026) — Solution
Options
- A. Collenchyma
- B. Parenchyma
- C. Sclerenchyma
- D. Xylem parenchyma
Answer
C. Sclerenchyma
Step-by-step solution
Sclerenchyma consists of long, narrow cells with thick and lignified cell walls having a few or numerous pits. They are usually dead and without protoplasts. Parenchyma and collenchyma are living tissues. Xylem parenchyma is the only living component of xylem. Answer: Sclerenchyma
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