1. absorption of dietary iron from GIT is not affected by simultaneous intake of sodium chloride calcium milk ascorbic acid 2. A dietary deficiency of which of the following is most strongly associated with a neural tube defect at the base of the fetus’s spine? Vitamin C Calcium Iron Folate 3. decreased basal metabolic rate is seen in hyperthyroidism obesity exercise feeding 4. Major initiating response for peristalsis is Local stretching of gut Neural none Hormonal 5. Absence of which of the following cell types is responsible for loss of vitamin B12 absorption? Parietal cells Goblet cells Chief cells G cells 6. Vagal stimulation of the heart causes decrease in heart rate by Increase in repolarisation Decrease conduction Decrease in slope of prepotential Decrease in action potential spike 7. Which of the following is most likely to relieve the symptoms caused by hyperventilation? Breathing a 10% oxygen/90% nitrogen mixture Intravenous administration of bicarbonate Breathing in and out of a plastic bag Breathing 100% nitrogen 8. which of the following enzyme is stable at acidic pH carboxypeptidase pepsin chymotripsin trypsin 9. Lowest pH is seen in which of the gastrointestinal secretion Gastric juice pancreatic juice bile juice Saliva 10. Glomerular filtration of a substance depends upon Both of the above none of the above binding capacity to albumin Lipid solubility of substance 11. during diastole the arterial pressure is maintained by constriction of capillaries contraction of left ventricle musculature of arteries elastic recoil of aorta 12. christmas disease occurs due to deficiency of factor X factor XI factor IX factor VIII 13. Coronary blood flow regulated by Sympathetic cholinergic system Local muscle action and reflexes Sympathetic adrenergic system parasympathetic system 14. the primary action of nitric oxide in the gastrointestinal tract is vasoconstriction vasodilation gastrointestinal smooth muscle relaxation gastrointestinal smooth muscle contraction 15. Most important hormone for gall bladder contraction to release bile Secretin CCK VIP Gastrin 16. intrinsic factor of castle is secreted by which of the following cells in gastric glands parietal cells chief cells enterochromaffin cells B cells 17. Which of the following coagulation factors causes cross linking and stabilisation of clot Thrombin Factor IX factor XIII Factor VIII 18. Tubuloglomerular feedback is for regulation of Sodium reabsorption Blood volume GFR BP 19. nitrogen narcosis is caused due to increase solubility of nitrogen in nerve cell membrane nitrogen inhibits dismutase enzyme increase production of nitrous oxide decrease in oxygen free radicals 20. Bile acids consist of all except Lithocholic acid Taurocholic acid Chendeoxycholic acid Deoxycholic add Loading … Question 1 of 20
