Two very small organisms X and Y both reproduce by the method of budding. Organism X is industrially very important because it is used in making alcohol from sugar. It is also used in making bread. Organism Y Lives in freshwater. If organism Y gets cut into a number of parts accidently, each cut part can grow to form complete organism.
(a) What are organisms X and Y?
(b) What is the name of the process in which X converts sugar into alcohol?
(c) To which class of organisms does X belong?
(d) Name an important body feature of organism Y.
(e) Which organism is multicellular and which one is unicellular?

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Solution

(a) The organism X is yeast and organism Y is Hydra.
(b) The process by which the organism X converts sugar into alcohol is fermentation.
(c) Organism X is a fungus; hence, it belongs to the category of non-green plants.
(d) Organism Y is a multicellular organism and comprises tentacles at one end.
(e) Organism X is unicellular, and the organism Y is multicellular.

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