2018 JULY Improvement (+1)
ZOOLOGY: ANSWERS
2. Serum
3. Tapeworm.
4. a) TSH: Thyroid Stimulating Hormone
b)
ACTH: Adrenocorticotrophic Hormone.
c) ANF: Atrial Natriuretic factor.
d)
FSH: Follicle Stimulating Hormone.
5. (a) A- Cartilage, B- Bone
(b) A- Chondrocytes, B- Osteocytes.
6. (a) Diphyodont
(b) Thecodont.
7. Granulocytes: Neutrophils, Eosinophils.
Agranulocytes: Monocytes, Lymphocytes.
8. Jelly fish. It is a cnidarian
(not fish). Others are fishes.
9. a) Oxygen-Hb dissociation
curve.
b) PO2, PCO2, H+
concentration, Temperature.
10. a) Ureamia.
b) For kidney failure: Haemodialysis.
For acute kidney
failure: Kidney transplantation.
11. a) Arthritis
b) Osteoporosis
c) Gout
d) Tetany
12. a) Mollusca
b) Ctenophora
c) Annelida
d) Hemichordata
13. b. The light bands are
called ‘A’ band or Anisotropic band.
Correction: The light bands are called ‘I’
band or Isotropic band.
14. a) iii. The inner walls of
blood vessels and air sacs of lungs.
b)
Protection.
15. a) Concept of activation energy.
b) Enzymes lower the activation energy and
thereby increases the speed of chemical reactions.
16. a) Spinal cord
b) Mid brain
c) Corpora quadrigemina
d) Thalamus
e) Pons
f) Medulla oblongata
17. a) Chordata
b) Nerve cord
c) Presence of notochord.
Presence of pharyngeal
gill slits.
Presence of post anal
tail.
18. (a) Increases blood glucose level.
(b) Thymus
(c) Melatonin
(d) Contraction of smooth muscles
(e) Parathyroid
(f) Decreases Ca2+ level in blood