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प्रश्न
Draw a well labelled diagram of animal cell and mention one function of the main cell organelles.
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उत्तर
Following are the main cell organelles:
(i) Nucleus: It controls all the metabolic activities of a cell and regulates the cell cycle.
(ii) Endoplasmic reticulum: They provide skeletal framework to the cell and are concerned with the production of lipids and proteins.
(iii) Ribosomes: They play an important role in protein synthesis.
(iv) Mitochondria: They are the powerhouse of the cell as they provide energy to the cell by performing cellular respiration.
(v) Golgi apparatus: It is involved in the synthesis of cell wall, plasma membrane, and lysosomes.
(vi) Lysosomes: They are the cellular housekeepers and form a kind of garbage disposal system of the cell by removing worn out or damaged cellular organelles.
(vii) Vacuoles: They help in maintaining the osmotic pressure in the cell. and also in storing excess nutrients and molecules.
(viii) Peroxisomes: They carry out certain oxidative reactions (detoxification) and remove the toxic substances from the cell.
(ix) Centrosome: It helps in cell division in animal cell.
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संबंधित प्रश्न
Write short note on the following:
Golgi apparatus
Who am I?
I am chemical factory of the cell.
Name the part of the cell concerned with the following :
Initiation of cell division
How many chromosome pairs are found in human cells?
________ is surrounded by microtubules, located near the nucleus.
Fill in the blanks :
_______ are hereditary units.
State the major function of the following :
Plasma membrane
Fill in the blanks:
The jelly-like fluid that surrounds the nucleus of a cell is called ______.
Identify the cellular structure with the help of the following clue:
It destroys foreign substances.
Identify the cellular structure with the help of the following clue:
It gives turgidity to the plant cells.
