JUNE 2021
B. Sc. (IV Semester) Examination
ZOOLOGY
Paper: ZOO/T4/241
(Physiology and Developmental Biology)
Full Marks : 50
Pass Marks : 35%
Time : Two Hours
Notes: (i) Answer all questions as stated.
(ii) The figures in the margin indicate full marks for the questions.
1. Answer all questions: 2x5= 10
(a) Name two proteolytic enzymes.
(b) Name two neurotransmitters.
(c) Name two hormones secreted by the pancreas.
(d) Define cleavage.
(e) Name two insect hormones.
2. Answer any four of the following: 4x4= 16
(a) Describe the process of digestion of carbohydrate in mammals.
(b) Describe the structure of a neuron with the help of a diagram.
(c) Elaborate the functions of hormones.
(d) Describe the process of spermatogenesis.
(e) Describe the structural change during metamorphosis in amphibians.
(f) Explain ABO system of blood grouping.
3. Answer any three of the following: 8x3= 24
(a) Explain the process of blood coagulation.
(b) Describe the physiology of muscle contraction.
(c) Describe the functions of anterior pituitary hormones.
(d) With the help of diagram describe the process of fertilization.
(e) Describe the concept of in-vitro fertilization.
