KALOJI NARAYANA RAO UNIVERSITY OF
HEALTH SCIENCES
WARANGAL, TELANGANA STATE - 506 002
MBBS FIRST YEAR SUPPLEMENTARY
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EXAMINATIONS: FEBRUARY, 2024PHYSIOLOGY
PAPER - I
(NEW SCHEME)
Time: 3 Hours
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Max. Marks: 100Note: Answer all questions
Multiple Choice Questions:
Give Diagrammatic representation wherever necessary
1. Starling's law of the heart 10 X 1=10
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a) Does not operate in thefailing heart
c) Explains the increase in heart
rate produced by exercise
b) Does not operate during exercise
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d) Explains the increase in cardiacoutput that occurs when venous
return is increased
2. The second heart sound is caused by
a) Closure of the aortic and
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pulmonary valves
c) Ventricular filling
b) Vibrations in the ventricular wall
during systole
d) Closure of the mitral and
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cuspid valves3. The most potent vasoconstrictor is:
a) Endothelin I
c) Norepinephrine
b) Angiotensin II
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d) Vasopressin4. The plasma concentration at which a particular
substance begins to
appear in the urine is the:
a) Transport maximum (Tm)
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c) Filtered loadb) Fractional excretion
d) Renal threshold
5. Normal desire for micturition is felt when the amount
of urine collected
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in the bladder isa) 20-30ML
c) 300-400ML
b) 50-100ML
d) 1000-1500ML
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6. Bile acids are synthesized from
a) Cholesterol
c) Bilirubin
b) Amino acids
d) Protein
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7. ESR is increased in all of the following excepta) Pregnancy
c) Sickle cell anaemia
b) Tuberculosis
d) Iron deficiency anaemia
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8. The Enzyme which activates Apoptosis isa) Caspases
c) Carboxylase
b) Ribonucleases
d) Transaminase
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9. Active transport processesa) Are often referred to as
pumps
b) Most used processes to move
substances through the cell
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membraned) Help transport of substances
along the electrochemical
gradient
of Always use the energy
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obtained from transport ofother substances
10. Major sources of Ammonia production in renal
tubules
a) Deamination of Glutamine
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b) Deamination of Glutamic Acidc) Deamination of other amino
acids, glycine, asparagine.
d) Comes directly from Arterial
blood
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alanineEssay/ Long Answer Questions: 2 X 15=30
11. Describe in detail the genesis of respiration and
explain the chemical factors
regulating the respiration.
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12. A middle aged male with three sons diagnosed withHaemophilia
a) Define Haemophilia and list out the clotting factors
b) Explain in detail the mechanism of coagulation
c) Will the children inherit the disease. If not explain
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why.d) Explain in brief BT and CT.
(7+8)
(2+2+6+3+2)
Short Answer Questions: 7 X 6 = 42
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13. Short term regulation of blood pressure.14. Explain the conducting system of heart with labelled
diagram. What is the
importance of AV nodal delay?
15. Mechanism of gastric acid secretion.
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16. Determinants of coronary circulation.17. Describe professional qualities of a physician.
18. Functions of Plasma Proteins.
19. Discuss the various feedback control mechanisms of
body. Explain with the
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help of examples.Very Short Answer Questions: 6 X 3 = 18
20. Define uniport, symport and antiport with examples
21. Defecation reflex.
22. Compliance of lung.
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23. Windkessel vessels and resistance24. Molecular motors
25. Sham feeding.
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