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Which of the Following is Correct - Biology

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ConceptCell Theory

Question

Which of the following is correct:

(a) Cells of all living organisms have a nucleus.

(b) Both animal and plant cells have a well defined cell wall.

(c) In prokaryotes, there are no membrane bound organelles.

(d) Cells are formed de novo from abiotic materials.

Solution

Membrane-bound organelles are organelles surrounded by a double membrane. Nucleus, mitochondria, chloroplasts, etc., are examples of such organelles. These cell organelles are absent from prokaryotes.

(a) Only eukaryotic cells have nuclei. They are absent from prokaryotes.

(b) Cell walls are only present in plant cells. They are absent from all animal cells.

(d) All cells arise from pre-existing cells.

  Is there an error in this question or solution?

APPEARS IN

 NCERT Solution for Biology Textbook for Class 11 (2018 to Current)
Chapter 8: Cell: The Unit of Life
Q: 4 | Page no. 141

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Solution Which of the Following is Correct Concept: Cell Theory.
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