Question

Taste receptors of Ascaris are

• A. Phasmids
• B. Amphids
• C. Labial papillae
• D. Both B and C

Answer 1

The correct option is C Labial papillae

The sense organs of Ascaris are as follows: Labial papillae are gustoreceptors (or taste-receptors) and are present on three lips. Cervical papillae are tactile organs. Anal papillae are situated below the posterior end of male. There are 5 pairs of postanal genital papillae and 50 pairs of preanal papillae. They are tactile in function and help in copulation. Amphids, present on each lateroventral lip, are chemoreceptors. Phasmids are chemoreceptors that open one on either side of tail of female.

So, the correct answer is 'Labial papillae'.