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प्रश्न
Give functions.
Plasma membrane
उत्तर
Functions of the plasma membrane:
- It gives shape and support to the cell.
- It acts as a mechanical barrier to protect the internal contents of the cell.
- It separates the contents of the cell from its surrounding medium.
- It performs physical activities such as diffusion and osmosis.
संबंधित प्रश्न
Write short note on the following :
(a) Golgi apparatus
(b) Mitochondria
Who gives me the colour? (Select the correct option)
| a. Red tomato | 1. Chlorophyll |
| b. Green leaf | 2. Carotene |
| c. Carrot | 3. Anthocyanin |
| d. Violet | 4. Lycopene |
State whether the following statement is true (T) or False (F):
The cell wall is made of protein.
Fill in the blanks :
_______ are hereditary units.
Distinguish between the following pairs of terms :
Protoplasm and cytoplasm
Put a tick mark (✓) against the correct alternative in the following statement:
The vacuole contains:
The cell membrane is called selectively permeable. Why?
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:
A non-living rigid layer surrounding the plasma membrane.
Name the following:
The part of cytoplasm which is devoid of the organelles.
