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प्रश्न
Give functions.
Vacuole
उत्तर १
- To maintain the osmotic pressure of the cell.
- To store metabolic byproducts and end products. (Glycogen, proteins, water, etc).
- In animal cell, they store waste products and food, while in amoeba it stores food before digestion.
- In plant cell, vacuoles are full of cell sap and provide turgidity, rigidity to them.
उत्तर २
Functions of vacuoles:
- The main function of vacuoles is to store food in a cell.
- They also help in storing and expelling wastes and toxic by-products of metabolic reactions.
- They help in maintaining the turgidity and rigidity of a cell.
संबंधित प्रश्न
Complete the crossword with the help of clues given below.
Across
1. This is necessary for photosynthesis.
3. Term for component present in the cytoplasm.
6. The living substance in the cell.
8. Units of inheritance present on the chromosomes.
Down
1. Green plastids.
2. Formed by collection of tissues.
4. It separates the contents of the cell from the surrounding medium.
5. Empty structure in the cytoplasm.
7. A group of cells.
What are main functional regions of the cell?
Give functions.
Nucleus
Distinguish between the following pairs of science :
Cell wall and cell membrane
Name the plastid and pigment likely to be found in the cells of :
The cell membrane is called selectively permeable. Why?
Fill in the blanks:
Muscles cells are ______ and contractile.
Write true or false for each statement. Rewrite the false statements correctly:
A mitochondrion is bound by two membranes
Identify the cellular structure with the help of the following clue:
A non-living rigid layer surrounding the plasma membrane.
Identify the cellular structure with the help of the following clue:
It destroys foreign substances.
