- A Thick cell walls with no living cytoplasm
- B Thin walls and living content at maturity
- C Dead cells with heavily lignified secondary walls
- D Tissue found mainly within xylem vessels and tracheids
Correct answer: B. Thin walls and living content at maturity
Explanation: Parenchyma cells are living, thin-walled cells that are loosely packed. They perform photosynthesis (when with chloroplasts = chlorenchyma), storage, and packing functions.
Concept context
Internal tissue organisation: meristems, permanent tissues (xylem, phloem, parenchyma), and secondary growth. Frequently tested in NEET.