Question 1 — Differentiate between the following pairs - Questions at the end of the chapter - Chapter 2 - Cell: The Building Block of Life (Exploration)

Last updated at July 10, 2026 by

Q 1
Question

Differentiate between the following pairs of terms based on the clues given in parentheses: (i) Cell membrane and cell wall (permeability) (ii) RER and SER (structure) (iii) Chloroplasts and chromoplasts (pigments)

Image: A three-row comparison chart showing cell membrane versus cell wall, rough ER versus smooth ER, and chloroplast versus chromoplast, each pair side by side with their key differences highlighted.
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Answer
Each pair differs in permeability, structure or pigment.

Explanation

Pair (clue) First term Second term
Membrane vs wall (permeability) Selectively permeable. Permeable (lets water and minerals through).
RER vs SER (structure) Has ribosomes on its surface. No ribosomes; looks smooth.
Chloroplast vs chromoplast (pigments) Green pigment (chlorophyll). Yellow, orange or red pigments.
Permeability, ribosomes and pigments are the key differences.
Cell Membrane vs Cell Wall Cell Membrane Cell Wall Thin, in all cells. Thick, only in plant/fungi/bacteria. Selectively permeable. Fully permeable. Made of lipids + Made of cellulose. proteins.
← Back to concept: 2.2.1 Cell membrane
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