Question

(b) Write the main function of the following cell components.
1) Lysosomes
2) Ribosomes.
3) Nucleus
4) Plasma membrane.
5) Chloroplast​

Answer 1

Answer:

1) Lisosmes break down excess or worn-out cell parts. They may be used to destroy invading viruses and bacteria.

2) Ribosomes are a cell structure that makes protein. Protein is needed for many cell functions such as repairing damage or directing chemical processes.

3) Nucleus is responsible for storing the cell's hereditary material or the DNA. It is responsible for coordinating many of the important cellular activities such as protein synthesis, cell division, growth and a host of other important functions.

4) Plasma membrane or cytoplasm separates the content of cell from their external environment. It allows the materials from surrounding to enter and exit the cell. It also allows the movement of water in and out of the cell depending upon the concentration outside the cell by the process of osmosis.

5) Chloroplast synthesize food by the process of photosynthesis. Absorbs light energy and converts it into chemical energy.

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Answer 2

Answer: Functions of Lysosome- 1) They are called digestive bags. They destroy any foreign material which enter the cell such as bacteria and virus. 2)They remove worn out and poorly working cellular organelles by digesting them to make way for their new replacements. 3)They are called suicide bags of cell.

Functions of Ribosomes- 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.

Explanation: Functions of Nucleus- The nucleus has 2 primary functions: It is responsible for storing the cell's hereditary material or the DNA. It is responsible for coordinating many of the important cellular activities such as protein synthesis, cell division, growth and a host of other important functions.

Functions of Plasma membrane- Plasma membrane is the outermost layer in cells. It separates the content of cell from their external environment. It allows the materials from surrounding to enter and exit the cell. ... It also allows the movement of water in and out of the cell depending upon the concentration outside the cell by the process of osmosis.

Function of Chloroplast- The most important function of the chloroplast is to synthesize food by the process of photosynthesis. Absorbs light energy and converts it into chemical energy. Chloroplast has a structure called chlorophyll which functions by trapping the solar energy and used for the synthesis of food in all green plants.

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