ENTHUSIASM TEST QUESTIONS HELD ON 16-12-18

ENTHUSIASM TEST

NEET LEVEL- AIPMT & OTHER MEDICAL ENTRANCE

CHAPTER- DIGESTION + RESPIRATION + CIRCULATION

FM- 200 TIME- 1hr DATE- 16/12/2018

Question carrying one mark each

(Each correct answer carry 4 marks while 1 mark will be deducted for every wrong answer)

1. A balanced diet does not include (Karnataka CET)

(a) carbohydrates and fats (b) nucleic acids and enzymes

2. Which of the following guards the opening of hepatopancreatic duct into the duodenum?
(a) Pyloric sphincter (b) Sphincter of Oddi (NEET Phase - 1)

3. The main function of the lacteals in the villi of human small intestine is to absorb

(a) fat globules (b) water and minerals salts (Kerala PMT)

4. Brunner's glands are found in (JIPMER)

(a) duodenum (b) jejunum (c) stomach (d) both (a) and (b)

5. Choose the correct statement among the following. (Kerala PMT)

(a) The intestinal mucosal epithelium has oxyntic cells.

(b) Ptyalin converts proteins into proteoses and peptones.

(d) Sphincter of Oddi is present at the junction of oesophagus and cardiac stomach.

(e) Goblet cells secrete hydrochloric acid in stomach.

6. Identify the correctly matched structure and its secretion. (Kerala PMT)

(a) Brunner's gland - Salivary amylase (b) Intestinal mucosa - Insulin

7. Digestion of protein is incomplete in the absence of enterokinase, because

(a) trypsinogen is not converted into trypsin (Karnataka CET)

(b) pepsinogen is not converted into pepsin

(d) chymotrypsinogen is not converted into chymotrypsin.

8.The enzyme that is not present in succusentericus is (AIPMT)

(a) nucleosidase (b) Lipase (c) maltase (d) nuclease

9. The initial step in the digestion of milk in humans is carried out by (NEET, Karnataka)

(a) Lipase (b) trypsin (c) rennin (d) pepsin

10. Which enzymes are likely to act on the baked potatoes eaten by a man, starting from the mouth as they move down the alimentary canal? (AMU)

(a) Pancreatic amylase → Salivary amylase → Lipases

(b) Disaccharidases like maltase → Lipases → Nucleases

(d) Salivary maltase → Carboxypeptidase → trypsinogen

11. After surgical removal of an infected gall bladder, a person must be especially careful to restrict dietary intake of (OJEE)

(a) Starch (b) Protein (c) Sugar (d) Fat

12. Main function of HCL present in gastric juice is (AIPMT Mains)

(a) Digestion of starch (b)Conversion of pepsinogen to pepsin

13. One of the constituents of the pancreatic juice which is poured into the duodenum in humans is (Kerala PMT)

(a)trypsinogen (b)chymotrypsin (c)trypsin (d)enterokinase

14. Ptyalin is the another name of (OJEE)

(a)chymotrypsin (b)pepsin (c)salivary amylase (d)renin

15. Bile salts in bile help in................... of fats. (OJEE)

(a)dehydration (b)deglutition (c)emulsification (d)peristalsis

16. Which one of the following pairs of food components in humans reaches the stomach totally undigested? (AIPMT)

(a)Starch and fat (b)Fat and cellulose

(c)Starch and cellulose (d)Protein and starch

17. The food that enters intestine from stomach is called (AFMC)

(a)chyle (b)chyme (c)fundus (d)none of these

18. Whst will happen if the secretion of parietal cells of gastric glands is blocked with an inhibitor? (AIPMT)

(a) In the absence of HCL secretion, inactive pepsinogen is not converted into the active enzyme pepsin.

(b) Enterokinase will not be released from the duodenal mucosa and so trypsinogen is not converted to trypsin.

(d) Gastric juice will be deficient in pepsinogen

19. Fructose is absorbed into the blood through mucosa cells of intestine by the process called (AIPMT)

(a)Active transport (b)Facilitated transport

(c)simple diffusion (d)co-transport mechanism

20. The condition in which the potassium level is increased, is known as (J&K CET)

(a)hypercholesterolemia (b)hyperkalaemia

(c)osteomalacia (d)hyperexcitability

21. Which one of the following is a possibility for most of us in regards to breathing, by making a conscious effort? (AIPMT Mains)

(a)One can breathe out air totally without oxygen.

(b)One can breathe out air through Eustachian tube by closing both nose and mouth.

(c)One can consciously breathe in and breathe out by moving the diaphragm alone, without moving the ribs at all.

(d)The lungs can be made fully empty by forcefully breathing out all air from them.

22. The volume of 'anatomical dead space' air is normally (AIIMS)

(a)230ml (b)210 ml (C)190 ml (d)150 ml

23. Amount of air in the lungs that remain after deep breathing is called (J&K CET)

(a)dead space (b)residual volume

(c)vital capacity (d)ventilation rate

24. Tidal air in mammalian lungs is (AIIMS)

(a)air that normally goes in and out of lungs during breathing.

(b)total maximum air that can be drawn into lungs.

(c)air that is left in the lungs after normal expiration.

(d)air that can be expelled out from lungs forcibly after normal expiration.

25. The partial pressure of oxygen in the alveoli of the lungs is (NEET phase -2)

(a)equal to that in the blood (b)more than that in the blood

(c)less than that in the blood (d)less than that of carbon dioxide

26. Approximately seventy percent of carbon dioxide absorbed by the blood will be transported to the lungs (AIPMT)

(a)as bicarbonate ions (b) in the form of dissolved gas molecules

(c)by binding to R.B.C (d)as carbamino - haemoglobin

27. What is true about RBCs in humans? (AIPMT Prelims)

(a)They carry about 20-25 percent of CO₂(b)They transport 99.5 percent of O₂

(c)They transport about 80 percent of it is transported in dissolved state in blood plasma

(d)They do not carry CO₂at all.

28. Asthma may be attributed to (NEET Phase -1)

(a)inflammation of the trachea (b)accumulation of fluid in the lungs

(c)bacterial infection of the lungs (d)allergic reaction of the mast cells in the lungs

29. Which blood cells can engulf bacteria by phagocytosis? (WBJEE)

(a)Eosinophils and Basophils (b)Basophils and Lymphocytes

(c)Neutrophils and Monocytes (d)Neutrophils and Lymphocytes

30. What is the oxidation state of iron in haemoglobin? (AIIMS)

(a)Fe^-(b)Fe ²⁺ (c)Fe³⁺ (d)Fe⁴⁺

31. The haemoglobin content per 100 ml. of blood of a normal healthy human adult is

(a)5-11 mg (b)25-30 mg (c)17-20 mg (d)12-16 mg (AIPMT Mains)

32. Which of the following blood cells help in blood coagulation? (AIPMT)

(a)RBCs (b)Lymphocytes (c)Thrombocytes (d)Basophils

33. Which of the following prevents the conversion of prothrombin to thrombin in an undamaged blood vessels? (Karnataka CET)

(a) Thromboplastin (b) Fibrinogen (c) Heparin (d) Calcium ions

34. A drop of each of the following, is placed separately on four sides. Which of them will not coagulate? (JIPMER)

(a) Blood serum
(b) Whole blood from pulmonary vein
(c) Sample from the thoracic duct of lymphatic system
(d) Blood plasma

35. Compared to blood our lymph has (OJEE)

(a) Plasma without proteins
(b) more WBCs and no RBCs

36. Which one of the following is the correct statement for respiration in humans?
(Karnataka CET)

(a) Cigarette smoking may lead to inflammation of bronchi

(b) Neural signals from pneumotoxic centre is pons region of brain can increase the duration of inspiration.

(d) About 90% of carbon dioxide (Co₂) is carried by haemoglobin as carbamino haemoglobin.

37. Hamburger's phenomenon explains (CBSE PMT)

(a) formation of HCO₃
(b) chloride shift

38. A large proportion of oxygen remains unused in the human blood even after its uptake by the body tissues. This O₂ (WBJEE)

(a)actsas a reserve during muscular exercise

(b)raises the pCO₂of blood to 75 mm of Hg

(c)is enough to keep oxyhaemoglobin saturation at 96%

(d)helps in releasing more O₂to the epithelial tissues

39. Choose the right sequential phenomena among the following during the delivery of O₂from blood to tissue. (J&K CET)

P: Absorption of CO₂by the blood.
Q: Reaction of absorbed CO₂with H₂O to form H₂Co₃within RBC and its conversion into H⁺and HCO^-₃ions.
R: Reaction of absorbed CO₂with H₂O in plasma to form H₂CO₃and its conversion into H⁺and HCO^-₃ions.

S: Combination of H⁺with heme portion of HbO₂to release O₂
T: Combination of HCO^-₃with heme portion HbO₂to form reduced hemoglobin and release of O₂

(a)P,Q,T (b)P,R,S (c)P,Q,S (d)P,R,T

40.Dead space air in main is (AFMC)

(a)500 ml (b)150 ml (c)250 ml (d)1.5 l

41. Which of the following is the most appropriate in normal circumstances? (BJU)

(a)During inspiration, the intrapulmonary pressure is less than the atmospheric pressure.
(b)During expiration, the intrapulmonary pressure is less than the atmospheric pressure.

(c)During inspiration, the intrapulmonary pressure is more than the atmospheric pressure.

(d)During expiration, the intrapulmonary pressure is equal to the atmospheric pressure.

42. Lungs do not collapse between breathe and some air always remains in the lungs which can never be expelled because (AMU)

(a)There is a negative pressure in the lungs

(b)there is a negative intrapleural pressure pulling at the lung walls.

(c)there is a positive intrapleural pressure

(d)pressure in the lungs is higher than the atmospheric pressure.

43. A young infant may be feeding entirely on mother's milk which is white in colour but the stools which the infant passes out is quite yellowish. The colour of stool is due to (UPCPMT)

(a) bile pigments passed through bile juice
(b)intestinal juice
(c)undigested milk protein casein
(d)pancreatic juice poured into duodenum

44. When breast feeding is replaced by less nutritive food low in proteins and calories; the infants below the age of one year are likely to suffer from (CPMT)

(a)rickets (b)kwashiorkor (c)pellagra (d)marasmus

45. Carrier ions like Na⁺facilitate the absorption of substances like (UPCPMT)

(a)amino acids and glucose
(b)glucose and fatty acids
(c)fatty acids and glycerol
(d)fructose and some amino acids

46. Select the correct match of the digested products in humans given in column A with their absorption site and mechanism in column B (NEET Phase -1)

Column A Column B

(a)Glycerol, fatty acids Duodenum, move as chylomicrons

(b)Cholesterol, maltose Large intestine, active absorption

(c)Glycine, glucose Small intestine, active absorption

(d)Fructose, Na⁺ Small intestine, passive absorption

BEST OF LUCK

BY- ZOYA RAHMAN