Stage 1 Series – Total Marks 30 / Time Allowed 1 Hour
Syllabus: Chapter 15
I – Multiple Choice Question [1 x 10 = 10]:
- Which one of the following has no need for homeostasis?
a. Hypotonic
b. hypertonic
c. Isotonic
d. All have need of homeostasis - Which adaptation is not present in the xerophytic plants?
a. Thick waxy cuticle
b. The large surface area of leaves
c. Store water in their stem
d. Stomata in depressions - Which one is not true in the case of Trimethylamine oxide?
a. An osmolyte
b. Present in marine fishes
c. Occurs in the muscles
d. Degenerate protein - Excretion maintains a steady state of the body by balancing chemical components by________________.
a. Removal of nitrogenous wastes
b. Removal of byproducts of metabolism
c. Removal of harmful substances
d. All - Which one is not a nitrogenous waste of animals?
a. Creatinine
b. Xanthine
c. Allantois
d. All are nitrogenous wastes - Which one is not related to the chemical composition of sebum?
a. Triglycerides
b. Fatty acids
c. Squalene
d. All are present - Which one is not the function of the kidney?
a. Excretion
b. Osmoregulation
c. Maintain a healthy balance of the solute
d. Removal of sebum - Which one is incorrect in the case of aldosterone?
a. It is steroid hormone
b. Released from zona glomerulosa of adrenal cortex
c. Essential for Na conservation
d. All are correct - Blubber is very different from other fats?
a. Only found in whales and seals
b. More blood vessels as compared with other fat
c. Not an edible fat
d. All are correct - What is incorrect in the case of Heat shock proteins?
a. Produced in stress situations
b. Stabilize globular conformation of protein
c. Prevent denaturation of the thermosensitive enzymes
d. Not thermostable
II – Short Question [2 x 06 = 12]: - What are the consequences of the rising level of urea in the body fluids?
- How can a freshwater fish osmoregulation?
- Give osmoregulatory strategies of ureotelic and uricotelic?
- What is extracorporeal shortwave lithotripsy?
- Give a comparison of heat gain and heat loss mechanism?
- What are pyrogens? Is there have any significance?
III – Long Questions [4 x 2 = 08] - Write a detailed note on the urine formation and concentration.
- Explain in detail all the thermoregulatory strategies of mammals
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