Question

The gravid proglottids having fertilized eggs in the uterus of tapeworm are regularly detached, the process is known as
(A) Apolysis
(B) Proliferation
(C) Strobilation
(D) None of the above

Answer 1

Hint: The gravid proglottids are found at the end of the strobila. It encloses the fully mature uterus enormous of eggs. The branched uterine pattern in the gravid proglottids is often used as the major model for the label of the organism to the species level. eggs may be collected from gravid or mature proglottids.

Complete answer: Option (A)Apolysis
The shedding of gravid proglottids is named apolysis. Small associations of gravid proglottids annually separate from the posterior end of the strobila and go out with the host's waste. The two main objectives of apolysis are;
(a) It administers to transport the evolving embryos to the exterior, where they can be consumed by the secondary host.
(b) It restricts the size of the body which may contrarily achieve tremendous length due to continual proliferation in the neck region.
Tapeworms are parasitic worms. They are flat and have a segmented body. It resides in the intestine of some organisms. E.g. humans. Eating contaminated food containing tapeworm eggs is one of the sources via which the worm makes an entry into the body. Tapeworms have a three-stage life cycle: egg, an immature stage called a larva and an adult stage produces eggs.
Thus, the correct answer is option A.

Note: In Taenia solium, gravid proglottids are annually separated from the back end of strobila and are emitted out with the waste of the host. Apolysis is beneficial to the parasite in governing the length of the body and promoting the transporting of gravid proglottids to the intermediate host.