Check sibling questions

(a) Draw a diagram to show spore formation in Rhizopus.

(b) With the help of an example differentiate between the process of Budding and Fragmentation.

(c) Why is vegetative propagation practiced for growing some type of plants?

 

Answer:

(a)

SPORE FORMATION IN RHIZOPUS - Teachoo.png

(b)

Budding

Fragmentation

It is an asexual method of reproduction in which a small part of the organism grows out as a bud , which then detaches and grows into a new organism.

It is an asexual method of reproduction in which the body of a simple multicellular organism breaks into two or more pieces upon maturing and each piece grows into a new organism.

Hydra reproduces by budding.

Organisms like Spirogyra and sea anemones reproduce by fragmentation.

REGENERATION IN HYDRA - Teachoo.png

FRAGMENTATION IN SPIROGYRA - Teachoo.png

(c) Vegetative propagation is practised for growing some types of plants because:

  • Plants that do not produce seeds can reproduce using this method.
  • The offspring are genetically identical to the parent plant.
  • It is a cheaper, easier and rapid method of reproduction in plants.
  • Because of the presence of vegetative reproductive parts such as tubers, corns, and bulbs, many plants are able to withstand unfavourable environmental conditions.

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Transcript

Fragmentation in Spirogyra Budding in Hydra

CA Maninder Singh's photo - Co-founder, Teachoo

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CA Maninder Singh

CA Maninder Singh is a Chartered Accountant for the past 12 years and a teacher from the past 16 years. He teaches Science, Economics, Accounting and English at Teachoo