Question

Question:--

Describe the function of the following :-
• Cell wall
• Cell membrane
• Nucleus
• Ribosomes
• Lysosomes ​

Answer 1

Answer:

◆The cell wall is the protective, semi-permeable outer layer of a plant cell. A major function of the cell wall is to give the cell strength and structure, and to filter molecules that pass in and out of the cell.

◆Cell membrane gives shape to the cell. It separates cells from one another and also the cell from the surrounding medium.

◆Nucleus, in addition to its role inheritance, acts as control centre of the activities of the cell.

◆Ribosomes are a cell structure that makes protein. Protein is needed for many cell functions such as repairing damage or directing chemical processes. Ribosomes can be found floating within the cytoplasm or attached to the endoplasmic reticulum.

◆Inside a cell, numerous organelles function to remove wastes. One of the key organelles involved in digestion and waste removal is the lysosome. Lysosomes are organelles that contain digestive enzymes. They digest excess or worn out organelles, food particles, and engulfed viruses or bacteria.

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Answer 2

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• Cell wall

Cell wall is situated outside the cell.

It is a think wall made up of cellulose .

The cell wall supports and protects the cell.

• Cell membrane

The thin outer covering of the cell is called cell membrane.

It separates the outside and inside of the cell.

It gives Shape to the cell .

• Nucleus

It is a dark, generally spherical structure.

It is found in the cytoplasm

It regulates the process which go inside the cell.

• Ribosomes

They are particles that occur in the cytoplasm and on certain membrane.

They manufacture protein.

• Lysosomes

They are small packets that contain destructive enzymes .

They protect the cell.

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