Download NTRUHS 1st Year MBBS 2023 April Physiology Paper I Question Paper

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CBME

DR. YSR UNIVERSITY OF HEALTH SCIENCES: AP: VIJAYAWADA-520 008

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MBBS DEGREE EXAMINATION – APRIL, 2023

FIRST M.B.B.S. EXAMINATION

PHYSIOLOGY - PAPER-I (SET-D)

(Multiple Choice Questions)

Time: 20 Minutes Max Marks: 20

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Note: Answer all questions

SECTION - I (MCQs- 20 MARKS) 1x20=20

1. The normal albumin-globulin ratio is
   1. 1.5 to 2.5:1
   2. 3.5 to 4.5:1
   3. 4.5 to 5.5:1

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   4. 7.5 to 8.5:1
2. Normal reticulocyte count in adults is
   1. 0-1%
   2. 3-4%
   3. 4-5%

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   4. 6-7%
3. In the ligand-gated channels, ligand is a
   1. Physical agent
   2. Chemical agent
   3. Thermal agent

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   4. Electrical agent
4. CFU-Mega differentiates into megakaryoblast that in turn forms
   1. Monocyte
   2. Neutrophil
   3. Basophil

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   4. Platelets
5. The Velocity of Conduction of impulse in SA node is
   1. Fast
   2. Fastest
   3. Slow

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   4. None
6. Cardiac output decreased in
   1. Pregnancy
   2. Exercise
   3. Anxiety

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   4. Excessive sweating
7. Primary lymphoid organ involved in T cell development is
   1. Thyroid
   2. Bone
   3. Thymus

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   4. Liver
8. P Wave in the ECG is produced by
   1. Ventricular depolarization
   2. Ventricular repolarization
   3. Atrial depolarization

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   4. Atrial repolarization
9. Hemorrhagic shock feature is
   1. Hypertension
   2. Bradycardia
   3. Hypotension

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   4. Bradypnea
10. Factor that shifts the oxygen-hemoglobin curve to the right is
    1. Decreased temperature
    2. Carbon monoxide
    3. Fetal Hb

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    4. Increased temperature
11. Catecholamines
    1. Decrease heart rate
    2. Decrease blood pressure
    3. Decrease cardiac output

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    4. Increase heart rate
12. Pulmonary surfactant is secreted by
    1. Type II alveolar epithelial cells
    2. Type I alveolar epithelial cells
    3. Type III alveolar epithelial cells

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    4. Type IV alveolar epithelial cells
13. --- is a specific form of periodic breathing (waxing and waning amplitude of flow or tidal volume) characterized by a crescendo-decrescendo pattern of respiration between central apneas or central hypopneas.
    1. Cheyne-Stokes respiration
    2. Kussmaul breathing
    3. Biot's respiration

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    4. Apneustic breathing
14. H2 receptor antagonist is
    1. Ranitidine
    2. Omeprazole
    3. Proglumide

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    4. Octasulfate
15. Hypoxia occurs due to decreased blood flow to the tissues is called
    1. Hypoxic Hypoxia
    2. Anemic Hypoxia
    3. Histotoxic Hypoxia

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    4. Stagnant Hypoxia.
16. The hormone that causes secretion of pancreatic juice rich in HCO3- (Bicarbonate ions) is
    1. Gastrin
    2. Cholecystokinin
    3. Secretin,

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    4. Motilin
17. Atonic bladder occurs in destruction of
    1. Afferent impulses from the bladder.
    2. Efferent impulses from the spinal cord
    3. Facilitative impulses from the brain

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    4. Inhibitory impulses from the brain
18. Fructose is transported across the apical membrane of enterocyte by
    1. SGLT 1
    2. GLUT 2
    3. GLUT 4.

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    4. GLUT 5
19. Iron mostly absorbed from
    1. Lower part of small intestine
    2. Upper part of small intestine
    3. Lower part of large intestine

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    4. Upper part of large intestine
20. Parts of the nephron least permeable to water is
    1. Proximal Convoluted Tubule (PCT)
    2. Distal Convoluted Tubule (DCT).
    3. Descending limb of loop of Henle

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    4. Ascending limb of loop of Henle