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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 :
(a) Golgi apparatus
(b) Mitochondria
What are centrioles? Write about their functions.
Who am I?
I am single layered, but maintain cellular osmotic pressure.
What would have happened? If.........
Plants lacked anthocyanin.
Name the part of the cell concerned with the following :
Initiation of cell division
Name the plastid and pigment likely to be found in the cells of :
Write true or false for each statement. Rewrite the false statements correctly:
Ribosomes are the sites of respiration in a cell
Give one main function of the following:
Chromosomes
Identify the cellular structure with the help of the following clue:
It consists of cisternae, vesicles and vacuoles.
Identify the cellular structure with the help of the following clue:
It is made up of DNA threads.
