Multiple Choice Questions

Advertisement

Which of the following enzyme digest protein in stomach?

  • Trypsin

  • Pepsin

  • Crepsin

  • None of these


B.

Pepsin

Pepsin is an endopeptidase enzyme or protein digesting enzyme. It is produced in the stomach. It breaks down proteins into smaller peptides. It acts in acidic medium, i.e. pH 2.

Trypsin is a serin protease. It hydrolzes proteins in the digestive system of many vertebrates. It is formed in the small intestine.


Advertisement

Haemocoel is found in :

  • Hydra and Aurelia

  • Taenia and Ascaris

  • cockroach and Pila

  • Balanoglossus and Herdmania


The group of anamniota includes:

  • reptiles and birds

  • birds and mammals

  • fishes and amphibians

  • reptiles, and mammals


The enzyme, which combines with non-protein part to form a functional enzyme known as :

  • co-enzyme

  • holoenzyme

  • apoenzyme

  • prosthetic group


The slime moulds are characterized by the presence of :

  • elaters

  • pseudoelaters

  • capillitium

  • capitulum


Advertisement

Ecdysone is secreted from:

  • insecta

  • trematoda

  • nematoda

  • polycheta


The excretory material of bony fish is:

  • urea

  • protein

  • ammonia

  • amino acid


Different colours of frog skin are controlled by:

  • hormones

  • melanocytes

  • nervous system

  • both 'a' and 'c'


Passive food ingestion in Amoeba is known as :

  • import

  • invagination

  • circumfluence

  • circumvallation


Advertisement

Blastula of frog has :

  • blastopore

  • blastocoel

  • arahenteron

  • gastropore