Cellular Structure and Functions | NTS Sindh Mdcat Past MCQs with explanation | mosaicbro.com

Cellular Structure and Functions | NTS Sindh Mdcat Past MCQs with explanation

7 of 58 questions (Page 6 of 9)

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36 When a red stain is added to a culture containing both living and dead cells, only the dead cells take up the stain. Which structure (s) prevent (s) the stain entering the living cells? (dmc 2014)
Correct Answer: A
Explanation: The cell membrane selectively prevents stains from entering living cells.
37 Which of the following is not a difference that would allow one to distinguish between a prokaryotic and a eukaryotic cell? I. Presence or absence of the nucleus II. Presence or absence of the cell wall III. Membrane-bound versus no membrane-bound organelles (dmc 2013)
Correct Answer: B
Explanation: Presence or absence of a cell wall is not a reliable distinction, as some eukaryotes (e.g., plants) have cell walls.
38 Of the following, which is the incorrectly Paired one? (dmc 2013)
Correct Answer: A
Explanation: Robert Hooke discovered cells, not the cell wall.
39 The food reserved CO2 and H2O are stored in: (dmc 2008)
Correct Answer: A
Explanation: Plastids store food reserves like starch.
40 Which of the following is not an organelle? (lumhs 2007)
Correct Answer: D
Explanation: Chlorophyll is a pigment, not an organelle.
41 Which of the following is a correct association? (lumhs 2007)
Correct Answer: B
Explanation: Lysosomes contain digestive enzymes for intracellular digestion.
42 Which of the following is not the function of cell membrane? (jsmu 2018)
Correct Answer: C
Explanation: Protein synthesis is not a function of the cell membrane.
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