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2017
Zoology(Major)
Paper : 5.3
(Endocrinology & Immunology)
Full Marks : 60
Time : 3 hours
1. Choose the ‘correct answer : 1x7=7
(a) Low levels of adrenal cortex hormones result in
(i) Addison’s disease
(ii) Cushing syndrome
(iii) tetany
(iv) goitre
(b) The stimulation of intestinal absorption of dietary Ca is.the principal biological role of
(i) thyroxine
(ii) parathyroid hormone
(iii) calcitonin
(iv) norepinephrine
(c) The hormone which acts through a nuclear receptor is .
(i) growth hormone
(ii) insulin
(iii) oxytocin
(iv) thyroid hormone
(d) HIV is a
(i) bacterium
(ii) retrovirus
(iii) modern virus
(iv) fungus
(e) What cells destroy pathogens by engulfing them?
(i) Cytotoxic T cells
(ii) Basophils
(iii) Eosinophils
(iv) Macrophages
(f) Which antibody is known to responsible for allergic reactions?
(i) IgM
(ii) IgA
(iii) IgE
(iv) IgD
(g) Active immunity may be gained by
(i) natural infection
(ii) vaccines
(iii) toxoids
(iv) All of the above
2. Distinguish between the following : 2x4=8
(a) Diabetes mellitus and Diabetes insipidus.
(b) Helper T cells and Cytotoxic T cells.
(c) Neurohormone and Neurohumor.
(d) Innate immunity and é Acquired immunity
3. Write short notes on any three of the following, : 5x3=15
(a) Biosynthesis of thyroxine
(b) Endocrine function of posterior pituitary
(c) Functions of MHC molecules
(d) Mineralocorticoids
(e) Autoimmune diseases