Question

which of the following helps in cell division a.centrosome b.ribosome c.plasma membrane d.lysosome?​

Answer 1

Centrosome helps in cell division.

Option (a) centrosome is correct.

Explanation for correct option:

Centrosome:

• It is the smallest organelle consisting of two centrioles.
• It is found only in animal cells and presents very close to the nucleus.
• It helps in cell division.

Hence, option (a) Centrosome is correct.

Explanation for incorrect option:

Ribosomes:

These are small round structures and sites of protein synthesis.

Hence option (b) ribosome is incorrect.

Explanation for incorrect option:

Plasma membrane:

• A cell membrane is also called a 'plasma membrane.' It is a thin porous layer.
• It encloses and protects the cell.
• It also separates the cell from other cells.
• This membrane is selectively permeable, allowing only certain materials to pass through the cell while restricting other materials.

Hence option (c) plasma membrane is incorrect.

Explanation for incorrect option:

Lysosomes:

• These are the storehouse of digestive enzymes.
• They digest worn-out organelles, food particles, bacteria, and viruses trapped by the cells.
• They are capable of destroying the cell in which they are present and hence called the suicidal bags of the cells.

Hence option (d) lysosome is incorrect.

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Answer 2

Answer:

correct option is a

Explanation:

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