Question

Which is not an example of vegetative propagule in angiosperms

• A. Zoospores of Chlamydomonas
• B. Eyes of Potato
• C. Rhizome of Ginger
• D. Bulbil of Agave

Answer 1

The correct option is A Zoospores of Chlamydomonas

Chlamydomonas is biflagellate and reproduces asexually by zoospores. The zoospores are identical to the parent cell in structure but smaller in size. The zoospores simply enlarge to become mature Chlamydomonas. It is not a vegetative part.

Vegetative propagation is the method of propagation of plant by vegetative parts of the plant. Eyes of potato, rhizome of ginger, bulbil of agave is an example of vegetative propagation.

Tubers are the underground modification of stem which stores starch. It has buds on its surface which helps in the growth of new plant as these buds are meristematic in nature. The buds are also known as eye.

Ginger is multiplied vegetatively by rhizome. It is a underground modification of stem. It develops root and shoots from the nodes. The nodes are meristematic in nature which produces adventitious root and shoots. The plant uses the rhizome to store starch, proteins, and other nutrients.

Bulbils are small bulb like structure which is mainly present in the axil of leaf and stem. Agave bears bulbil which falls on the ground and form a new plant. It is present in the axil of bracts in agave. Bulbils are considered as modified vegetative and floral buds which stores food and also helps in vegetative propagation of the plants.

So, the correct answer is option A.