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प्रश्न
Briefly describe the three essential basic parts of a cell
उत्तर
The essential basic parts of a cell are:
- Cell membrane
- Cytoplasm
- Nucleus
1. Cell membrane: It is a very thin, delicate and flexible membrane which surrounds each cell. It is also called plasma membrane. It consists of fine pores which allow only certain molecules to pass through it and prohibit the others and therefore, due to its function, also called selectively permeable membrane.
2. Cytoplasm: This is the living portion of the cell which is a semi-liquid, translucent and colourless liquid. It is the portion of the cell where major functions of the cell are carried out through various finer parts of the cell. The finer structures which are contained in this are called the cell organelles.
3. Nucleus: The small spherical dark coloured body usually located in the centre of the cell. It is the most important part of the cell which regulates and co-ordinates various life processes. Its major role is during cell division. It contains hereditary factors called the genes.
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संबंधित प्रश्न
Name the Following :(A) Smallest Cell Organelle
What would have happened? If.........
Plasma membrane had not been selectively permeable.
Fill in the blanks :
More than a thousand chromosomes are found in the nucleus of certain _______.
What is the difference between an organ and an organelle?
Fill in the blanks:
The jelly-like fluid that surrounds the nucleus of a cell is called ______.
Fill in the blanks:
The ______ contains a network of thread-like structures called chromatin network.
Write true or false for each statement. Rewrite the false statements correctly:
Ribosomes are the sites of respiration in a cell
Write true or false for each statement. Rewrite the false statements correctly:
Vacuoles are filled with a fluid called nucleoplasm
Give one main function of the following:
Chromosomes
Identify the cellular structure with the help of the following clue:
It is made up of DNA threads.