Question

3.
Which of the following structures is not present in all cells?
(a) Plastids
(b) Cytoplasm
(c) Nucleus
(d) Cell membrane
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Answer 1

Answer:

Answer is : (a) plastids.

Answer 2

Answer:

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(c)nucleus

Explanation:

Nucleus is not present in all cells. They are only present in eukaryotic cells and absent in prokaryotes. Other components like cell membrane, cytoplasm etc.25-