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Question
How is reproduction in Hydra different from that in Amoeba?
How is reproduction in Hydra different from that in Amoeba?
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Solution
Hydra:
- A genus of tiny, freshwater animals belonging to the phylum Cnidaria and class Hydrozoa is called Hydra.
- They are indigenous to both tropical and temperate climates.
Amoeba:
A type of cell or unicellular organism known as an amoeba, also known as an amoeboid, has the capacity to change its shape, primarily through extending and retracting pseudopods.
Asexual reproduction and Binary fission
- Asexual reproduction is the mode of reproduction in which organisms produce offspring that are identical to themselves without the involvement of gametes.
- Binary fission is such a type of reproduction, that the parent cell divides into 2 equal parts each containing a nucleus.
Differences between reproduction in Amoeba and Hydra:
Binary fission in Amoeba: Budding in Hydra: 1. Amoeba is a unicellular protist. It produces asexually through binary fission. 1. Hydra is a freshwater organism that belongs to the phylum Cnidaria. Hydra reproduces asexually through budding. 2. Amoeba develops a structure called pseudopodia which initially gets retrieved. 2. In hydra, the process of budding results in the development of a small bud from the parent hydra through numerous rounds of mitosis. 3. After which the amoeboid body gets coiled and becomes round. 3. Hydra uses regenerative cells for reproduction. 4. The cell division takes place in Amoeba and amitosis is observed with the division of the nucleus and splitting of cytoplasm. 4. It develops an outgrowth due to repeated cell division at a particular site, which is called a bud. 5. When the cell body of Amoeba starts dividing, a constriction develops which becomes deeper and the cell divides into daughter cells. 5. After maturation, these buds detach from the parent body and form new individuals. 6. Figure showing binary fission in Amoeba:
6. Figure showing budding in Hydra:
Hydra:
- A genus of tiny, freshwater animals belonging to the phylum Cnidaria and class Hydrozoa is called Hydra.
- They are indigenous to both tropical and temperate climates.
Amoeba:
A type of cell or unicellular organism known as an amoeba, also known as an amoeboid, has the capacity to change its shape, primarily through extending and retracting pseudopods.
Asexual reproduction and Binary fission
- Asexual reproduction is the mode of reproduction in which organisms produce offspring that are identical to themselves without the involvement of gametes.
- Binary fission is such a type of reproduction, that the parent cell divides into 2 equal parts each containing a nucleus.
Differences between reproduction in Amoeba and Hydra:
| Binary fission in Amoeba: | Budding in Hydra: |
| 1. Amoeba is a unicellular protist. It produces asexually through binary fission. | 1. Hydra is a freshwater organism that belongs to the phylum Cnidaria. Hydra reproduces asexually through budding. |
| 2. Amoeba develops a structure called pseudopodia which initially gets retrieved. | 2. In hydra, the process of budding results in the development of a small bud from the parent hydra through numerous rounds of mitosis. |
| 3. After which the amoeboid body gets coiled and becomes round. | 3. Hydra uses regenerative cells for reproduction. |
| 4. The cell division takes place in Amoeba and amitosis is observed with the division of the nucleus and splitting of cytoplasm. | 4. It develops an outgrowth due to repeated cell division at a particular site, which is called a bud. |
| 5. When the cell body of Amoeba starts dividing, a constriction develops which becomes deeper and the cell divides into daughter cells. | 5. After maturation, these buds detach from the parent body and form new individuals. |
6. Figure showing binary fission in Amoeba:
| 6. Figure showing budding in Hydra:
|
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