Ch#15. (Start to excretion in hydra)
Q.No.1.Tick the right choice
i.Homeostatic thermostat in man is —
a).Thalamus b).Hypothalamus c).cerebellum
ii.Two ammonia and one co2 combined to form — a).arginine b).arginase c).Urea
iii.some bony fishes produces —
a).NH3 b).Urea c).Uric acid
iv.1g of ammonia Nitrogen need H2O –ml
a).50 b).100 c).250 d).500
Q.No.2.Answers the questions
i.write urea cycle with diagram?
ii.what are main types of excretory products in animals?
iii.what are hypotonic and hypertonic environments?
iv.Give the importance of Homeostasis?
v.Differentiate between osmoconformer and osmoregulators?
vi.How marine fishes maintain their hypotonic Internal conditions?
Q.No.3.Describe osmoregulation in plants
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