physiology MCQs – Page 5

Practise focused physiology questions with marked answers for exam preparation and subject revision.

physiology Mcqs
81. At high altitudes the following changes takes place except_______________?
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A. Increases in depth of respiration

B. Increase in oxygen carrying capacity of blood

C. Increase in respiratory rate

D. Increase in partial pressure of CO2
82. Which of these following is not an effect of insulin ?
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A. Decreased gluconeogenesis

B. Induction of lipoprotein lipase

C. Increased glycogenolysis

D. Increased transport of glucose into cells

83. Which of the following adaptations will be apt to increase the work capacity at high altitude_________________?
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A. Increased workload, increasing duration of exercise

B. Decreasing workload, decreasing duration of exercise

C. Decreasing workload, increasing duration of exercise

D. Increased workload, decreasing duration of exercise

84. Best stimuli for secretion is______________?
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A. Acid

B. Bile

C. Protein

D. Fat

85. Which of the following statements about pulmonary surfactant is false ?
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A. It contains lecithin and sphingomyelin

B. It prevents collapse of smaller alveoli

C. It is secreted by Type II pneumocytes

D. It increases surface tension
86. Hyperthyroidism can be caused by____________?
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A. Penicillamine

B. Clonidine

C. Amiodarone

D. Hydralazine

87. Which of the following is called hunger hormone______________?
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A. Pituitary

B. Epinephrine

C. Thyroxine

D. Glucagon
88. During the initial part of inspiration, which of the following does not occur ?
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A. Intra thoracic pressure rises

B. Intrapulmonary pressure falls

C. The partial pressure of O2 in dead space rises

D. Intra-abdominal pressure rises

89. The most common form of hypoxia is______________?
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A. Stagnant

B. Histotoxic

C. Hypoxic

D. Anemic

90. The transport of CO is diffusion limited because_______________?
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A. CO is less absorbed in water

B. Bind avidly with Hb

C. Partial pressure of CO is less

D. Alveolar membrane is less permeable

91. Cortisol______________?
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A. Enhances antigen antibody reactions

B. Favours protein synthesis

C. Tends to lower blood pressure

D. Secretion increases following injury
92. Endocrine disorder is the primary cause of______________?
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A. Albrights syndrome

B. Acromegaly

C. Fibrous dysplasia

D. Pagets disease

93. Within which parts of a gastric gland are chief cells located_____________?
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A. Fundus

B. Neck

C. Gastric pit

D. Isthmus

94. Which is not produced enteroendocrinally_____________?
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A. Intrinsic factor

B. Motilin

C. GIP

D. Secretin

95. Features of hypothyroidism does not include______________?
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A. High TSH levels

B. Hypertension

C. Increased risk of infections

D. Obseity

96. In conns disease, there is an excess of______________?
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A. Noradrenaline

B. Cortisol

C. Adrenaline

D. Aldosterone
97. Insulin facilitates glucose uptake in____________?
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A. Brain

B. Red blood cells

C. Skeletal muscle

D. Kidney tubules

98. Nutrients are mainly absorbed in______________?
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A. Liver

B. Small intestine

C. Large intestine

D. Stomach

99. Following are local hormones except___________?
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A. Heparin

B. Acetylcholine

C. Insulin

D. Bradykinin

100. The alveolar ventilation in an individual with tidal volume: 600 ml, dead space 150 ml and respiratory rate of 15/ minute is_____________?
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A. 2.5 lit/Min

B. 9 Lit/Min

C. 4.0 lit /Min

D. 6.75 Lit/Min