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प्रश्न
What is a contractile vacoule? State its function in amoeba.
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उत्तर
Excess of water from the body of the amoeba is collected in the contractile vacuole. Ammonia is soluble in water. Hence, sometimes ammonia is expelled out along with the water from the contractile vacuole.
Function: The contractile vacuole expands when there is water in it and shrinks when the water is released into the surrounding.
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संबंधित प्रश्न
Tick (✓) the appropriate answer :
Amoeba belongs to :
Mention seven categories of hierarchical classification.
Explain the nutrition in fungi.
Match the items in Column I with as many as possible and even repeatedly from column II.
|
Column I |
Column II |
|
1.Pine |
(i) Fungi |
|
2. Earthworm |
(ii) Monera |
|
3. Bread mould |
(iii) Prokaryote |
|
4. Amoeba |
(iv) Gymnosperm |
|
5. Moss |
(v) Plantae |
|
6.Bacteria |
(vi) Animalia |
|
(vii) Protista |
|
|
(viii) Bryophyta |
Name the five kingdoms according to the new classification.
Give two examples of bryophyta
On what facts was the five kingdom system of classification based?
Write true (T) or false (F)
Whittaker proposed five kingdom classification.
List two demerits of five kingdom systems of classification.
How can you differentiate a Prokaryotic cell from a Eukaryotic cell?
