2023 · Q14
In the following simplified diagram of a plant cell, five parts/organelles are marked from 1 to 5: Which one of the following correctly represents the above parts/organelles?
General KnowledgeBiology
- A1 - cell membrane; 2 - cell wall; 3 - vacuole; 4 - endoplasmic reticulum; 5 - nucleus
- B1 - cell wall; 2 - cell membrane; 3 - endoplasmic reticulum; 4 - vacuole; 5 - nucleus
- C1 - cell wall; 2 - cell membrane; 3 - endoplasmic reticulum; 4 - nucleus; 5 - vacuole
- D1 - cell wall; 2 - cell membrane; 3 - vacuole; 4 - endoplasmic reticulum; 5 - nucleus
Explanation
In the labelled plant-cell diagram the outermost rigid layer is the cell wall (1), the selectively permeable layer just beneath it is the cell membrane (2), the membrane network is the endoplasmic reticulum (3), the dense controlling body is the nucleus (4), and the large fluid-filled sac is the vacuole (5). The diagram itself is not present in this text record, so the labelling follows the published key for this paper. Key disputed: verify against the official UPSC key.