Differentiate between the following :(a) Pollen tube and style(b) Fission in Amoeba and Plasmodium(c) Fragmentation and regeneration(d) Bud of Hydra and bud of Bryophyllum(e) Vegetative propagation and spore formation
Answers
(a) pollen tube:
pollen tube grows out of the pollen grain which take male gamete to the ovary.
style:
style is the tube which connects stigma to the ovary.
(b) fission in amoeba and plasmodium:
•amoeba reproduce through binary fission while plasmodium reproduce through multiple fission.
•amoeba splits into two daughter amoebae while plasmodium splits into many daughter cells.
(c) fragmentation and regeneration:
In fragmentation,the body of a simple multicellular organism breaks into two or more pieces on maturing, each of which subsequently grows to form a complete new organism.
Eg-Spirogyra
Regeneration is the process of getting back a full organism from its body parts.
Eg-Planaria.
(d) Bud of hydra and bud of Bryophyllum.
•Bud of hydra is an example of the process of budding while bud of Bryophyllum is an example of the process of vegetative propagation.
•Bud of hydra is a part of its body while bud of bryophyllum is the plantlet on its leaf.
(e)Vegetative propagation and Spore formation.
In vegetative propagation,new plants are obtained from the parts of old plants without the help of any reproductive organs.
Eg-Potato
In spore formation, the parent plant produces hundreds of microscopic reproductive units called spores. These sporesbursts and spread into air and lands on food and germinate under favourable conditions and produce new plants.
Eg-Rhizopus.
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(d) Bud of hydra and bud o Bryophyllum.
Bud of hydra is an example of the process of budding while bud of Bryophyllum is an example of the process of vegetative propagation.
•Bud of hydra is a part of its body while bud of bryophyllum is the plantlet on its leaf.
(e) Vegetative propagation and Spore formation.
In vegetative propagation,new plants are obtained from the parts of old plants without the help of any reproductive organs.
Eg-Potato
In vegetative propagation,new plants are obtained from the parts of old plants without the help of any reproductive organs.
Eg-Potato
In spore formation, the parent plant produces hundreds of microscopic reproductive units called spores. These sporesbursts and spread into air and lands on food and germinate under favourable conditions and produce new plants.
Eg-Rhizopus.
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