NEET BIOLOGY

Detailed explanation-1: -Paramecium has around 4, 000 motile cilia on its surface arranged in longitudinal rows, beating in waves to ensure movement and feeding. As with cilia in other model organisms, direction and speed of Paramecium ciliary beating is under bioelectric control of ciliary ion channels.

Detailed explanation-2: -Paramecium swims in fresh water by beating its thousands of cilia, and feeds on smaller microorganisms such as bacteria and algae. It is a prey for other microorganisms such as Didinium.

Detailed explanation-3: -Cilia have various kinds of important functions in the cells of Paramecium, such as sexual-cell recognition in conjugation, food uptake and cell locomotion. The expression of sexual activity, called mating reactivity, has been found to be deteriorative in clonal aging.

Detailed explanation-4: -Paramecium: a group of protozoa, or single-celled organisms. Paramecium move with cilia, so they are called ciliates.

Detailed explanation-5: -Answer and Explanation: Amoeba move by amoeboid movements with the help of its false-feet protrusions called pseudopodia. A Paramecium performs its movement by whiplash movements of its cilia.