MCQOPTIONS
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MCQOPTIONS
This section includes 657 Mcqs, each offering curated multiple-choice questions to sharpen your Testing Subject knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Which one of the animal having well-defined breeding seasons, from November to March |
| A. | Camel |
| B. | Pig |
| C. | Mule |
| D. | Donkey |
| Answer» C. Mule | |
| 2. |
Which one of the farming requires less space, easier to manage and maintain and fast return within a span of six months |
| A. | Poultry |
| B. | Fishery |
| C. | Sericulture |
| D. | Pig farming |
| Answer» E. | |
| 3. |
Which of the following remain undigested if pancreas is removed? |
| A. | Carbohydrates |
| B. | Fats |
| C. | Proteins |
| D. | All of these |
| Answer» E. | |
| 4. |
Proteolytic enzymes present in the pancreatic juice are: (BHU2007) 1. pepsin 2. elastase 3. salivary amylase 4. chymotrypsin Answer codes: |
| A. | 1 and 2 are correct |
| B. | 1 and 3 are correct |
| C. | 2 and 4 are correct |
| D. | 1, 2 and 3 are correct |
| Answer» D. 1, 2 and 3 are correct | |
| 5. |
Pancreatic juice takes part in digestion of: |
| A. | proteins, fats and carbohydrates |
| B. | proteins and carbohydrates |
| C. | proteins and fats |
| D. | proteins only |
| Answer» B. proteins and carbohydrates | |
| 6. |
Pancreatic juice is released into: |
| A. | ileum |
| B. | jejunum |
| C. | stomach |
| D. | duodenum |
| Answer» E. | |
| 7. |
Absence of which of these in bile will make fat digestion difficult? |
| A. | Salts |
| B. | Acids |
| C. | Pigments |
| D. | Cholesterol |
| Answer» B. Acids | |
| 8. |
Secretion of the bile is proportional to the concentration of: (MPPMT 2007; Har. PMT 2008) |
| A. | fat |
| B. | protein |
| C. | carbohydrate |
| D. | none of these |
| Answer» B. protein | |
| 9. |
Sodium taurocholate aids in: (EAMCET 2000) |
| A. | defecation |
| B. | absorption |
| C. | assimilation |
| D. | emulsification |
| Answer» E. | |
| 10. |
Bile salts help in: (CPMT 2006) |
| A. | digestion of fats |
| B. | excretion of fats |
| C. | absorption of fats |
| D. | both absorption and digestion of fats |
| Answer» E. | |
| 11. |
The delicious food generally makes mouth watery. This is due to: (JKCMEE 2002) |
| A. | neural response |
| B. | optic response |
| C. | hormonal response |
| D. | olfactory response |
| Answer» B. optic response | |
| 12. |
Emulsification of fats is brought about by: (CBSE 2001; Manipal 2005; Orissa JEE 2010) |
| A. | HCl |
| B. | bile salts |
| C. | bile pigments |
| D. | pancreatic juice |
| Answer» C. bile pigments | |
| 13. |
Emulsification of fat by bile occurs in: |
| A. | liver |
| B. | pancreas |
| C. | stomach |
| D. | duodenum |
| Answer» E. | |
| 14. |
The first process in the digestion and assimilation of fats is: (BHU 2003) |
| A. | emulsification |
| B. | enzymatic action |
| C. | absorption by lacteals |
| D. | storage in adipose tissue |
| Answer» B. enzymatic action | |
| 15. |
Bile helps in the digestion of fats because: (PCS 2004) |
| A. | it emulsifies fats |
| B. | it makes the medium alkaline |
| C. | it activates fat digestion enzymes |
| D. | it degrades fats into fatty acids and glycerol |
| Answer» B. it makes the medium alkaline | |
| 16. |
Part of bile juice useful in digestion is: (CPMT 2007) |
| A. | bile salt |
| B. | bile pigment |
| C. | bile matrix |
| D. | all of these |
| Answer» B. bile pigment | |
| 17. |
The amount of bile released is in proportion to the amount of: (CPMT 2004; MPPMT 2005) |
| A. | fat in meal |
| B. | protein in meal |
| C. | carbohydrate in meal |
| D. | all of these |
| Answer» B. protein in meal | |
| 18. |
Fat digestion is facilitated by: |
| A. | gastric juice |
| B. | bile juice |
| C. | pancreatic juice |
| D. | none of these |
| Answer» C. pancreatic juice | |
| 19. |
Which of the following has the highest pH? (AMU 2007) |
| A. | Bile |
| B. | Gastric juice |
| C. | Pancreatic juice |
| D. | Secretions of the intestinal glands |
| Answer» B. Gastric juice | |
| 20. |
Action of bile on fat is: |
| A. | acidic |
| B. | hormonal |
| C. | enzymatic |
| D. | nonenzymatic |
| Answer» E. | |
| 21. |
In mammals, the digestion of starch starts from: (BHU 2001; Pb. PMT 2003; Orissa JEE 2007) |
| A. | mouth |
| B. | stomach |
| C. | duodenum |
| D. | oesophagus |
| Answer» B. stomach | |
| 22. |
Excessive stimulation of vagus nerve in humans may lead to: (AIIMS 2003) |
| A. | hoarse voice |
| B. | peptic ulcers |
| C. | efficient digestion of proteins |
| D. | irregular contractions of diaphragm |
| Answer» C. efficient digestion of proteins | |
| 23. |
If the chyme of a person who had orally consumed only starch as food is analysed before it enters the duodenum, it will show-the presence of: (Karnataka CET 2002) |
| A. | maltose and glucose |
| B. | dextrin -and maltose |
| C. | starch, dextrin and maltose |
| D. | starch, dextrin and glucose |
| Answer» D. starch, dextrin and glucose | |
| 24. |
The food that enters intestine from stomach is called: (AFMC 2009) |
| A. | chyle |
| B. | chyme |
| C. | fundus |
| D. | none of these |
| Answer» C. fundus | |
| 25. |
Which of the following inhibits gastric HCl secretion during a meal? |
| A. | Distension of the stomach |
| B. | Distension of the duodenum |
| C. | The sight and smell of the food |
| D. | Presence of peptides in the stomach |
| Answer» C. The sight and smell of the food | |
| 26. |
What will happen if the secretion of parietal cells of the gastric glands is blocked with an inhibitor? (CBSE 2008) |
| A. | Gastric Juice will be deficient in chymosin |
| B. | Gastric juice will be deficient in pepsinogen |
| C. | In the absence of HCl secretion, inactive pepsinogen is not converted into the active enzyme pepsin |
| D. | Enterokinase will not be released from the duodenal mucosa and so trypsinogen is not converted to trypsin |
| Answer» D. Enterokinase will not be released from the duodenal mucosa and so trypsinogen is not converted to trypsin | |
| 27. |
Which of these statements about gastric secretion of HCl is false? |
| A. | HCl hydrolyses peptide bonds |
| B. | HCl is secreted by parietal cells |
| C. | HCl is needed for maximum activity of pepsin |
| D. | HCl is needed for the conversion of pepsinogen to pepsin |
| Answer» B. HCl is secreted by parietal cells | |
| 28. |
Function of HCl in stomach is to: |
| A. | facilitate absorption of food |
| B. | kill microorganisms of food |
| C. | activate trypsinogen to trypsin |
| D. | dissolve enzymes secreted by gastric glands |
| Answer» C. activate trypsinogen to trypsin | |
| 29. |
Consider the following statements: Assertion [A]: Polypeptidase acts on the peptide linkages of proteins and breaks them into smaller molecules. Water molecules are necessary for this reaction. Reason [R]: All digestive enzymes belong to hydrolase class. Now select your answer from the answer code given below: |
| A. | Both [A] and [R] are true and [R] is the correct explanation of [A] |
| B. | Both [A] and [R] are true but [R] is not the correct explanation of [A] |
| C. | [A] is true but [R] is false |
| D. | [R] is true but [A] is false |
| Answer» B. Both [A] and [R] are true but [R] is not the correct explanation of [A] | |
| 30. |
Which one of the following pairs of the kind of cells and their secretion is correctly matched? (AIIMS 2006) |
| A. | Oxyntic cells\[-\]a secretion with pH between 2.0 and 3.0 |
| B. | Kupffer cells\[-\]a digestive enzyme that hydrolyses nucleic acids |
| C. | Sebaceous glands\[-\]a secretion that evaporates for cooling |
| D. | Alpha cells of Islets of Langerhans\[-\]secretion that decreases blood sugar level |
| Answer» B. Kupffer cells\[-\]a digestive enzyme that hydrolyses nucleic acids | |
| 31. |
Which is correct pairing of site of action and substrate of rennin? |
| A. | Stomach Fat |
| B. | Mouth Starch |
| C. | Stomach Casein |
| D. | Small intestine Protein |
| Answer» D. Small intestine Protein | |
| 32. |
Renin acts on milk proteins and converts: (JIPMER 2002) |
| A. | caseinogen to casein |
| B. | casein into paracasein |
| C. | caseinogen to paracasein |
| D. | paracasein into caseinogen |
| Answer» C. caseinogen to paracasein | |
| 33. |
Milk protein is acted upon by a gastric enzyme: |
| A. | casein |
| B. | pepsin |
| C. | rennin |
| D. | caseinogen |
| Answer» D. caseinogen | |
| 34. |
Curdling of milk in stomach occurs by the action of: (AIIMS 2002) |
| A. | rennin |
| B. | trypsin |
| C. | erepsin |
| D. | chymotrypsin |
| Answer» B. trypsin | |
| 35. |
In mammals, a significant role in the digestion of milk is played by: (CBSE 2000; AFMC 2007) |
| A. | rennin |
| B. | invertase |
| C. | intestinal bacteria |
| D. | pancreatic amylase |
| Answer» B. invertase | |
| 36. |
Prorennin is secreted by: (DPMT 2007) |
| A. | Sertoli cells |
| B. | Hepatocytes |
| C. | Zymogen cells |
| D. | Islet of Langerhans |
| Answer» D. Islet of Langerhans | |
| 37. |
Largest variety of digestive enzymes is found in: (BV Pune 2004) |
| A. | parasites |
| B. | omnivores |
| C. | herbivores |
| D. | carnivores |
| Answer» C. herbivores | |
| 38. |
Which of the following is true about pepsin? |
| A. | Most pepsin is released directly from chief cells |
| B. | Pepsin is essential for protein digestion |
| C. | Pepsin accelerates protein digestion |
| D. | Pepsin is most active at high pH |
| Answer» D. Pepsin is most active at high pH | |
| 39. |
Enzyme rennin used in digestion is secreted from: (BCECE 2005) |
| A. | liver |
| B. | pancreas |
| C. | intestine |
| D. | stomach |
| Answer» E. | |
| 40. |
Identify the correct set which shows the name of the enzymes from where it is secreted and substrate upon which it acts: (Orissa JEE 2002) |
| A. | Pepsin Stomach wall Caesin |
| B. | Ptyalin Intestine Maltose |
| C. | Chymotrypsin Salivary gland Lactose |
| D. | Ptyalin Pancreas Lipid |
| Answer» B. Ptyalin Intestine Maltose | |
| 41. |
Medium in which pepsin active is: (Har. PMT2007) |
| A. | acidic |
| B. | neutral |
| C. | isotonic |
| D. | alkaline |
| Answer» B. neutral | |
| 42. |
Pepsin converts: (BHU 2004) |
| A. | fats into fatty acids |
| B. | glycogen to maltose |
| C. | sucrose to glucose |
| D. | proteins to peptones |
| Answer» E. | |
| 43. |
pH at which pepsin acts is: (JCECE 2003) |
| A. | 5.8 |
| B. | 6.8 |
| C. | 7.0 |
| D. | 2 |
| Answer» E. | |
| 44. |
The enzyme used to convert proteins into proteoses and peptones is: |
| A. | erepsin |
| B. | trypsin |
| C. | pepsin |
| D. | peptidase |
| Answer» D. peptidase | |
| 45. |
Which enzyme will digest protein if pH is 1.6? |
| A. | Pepsin |
| B. | Trypsin |
| C. | Peptidase |
| D. | Propepsin |
| Answer» B. Trypsin | |
| 46. |
Enzyme pepsin acts in: (Orissa JEE 2007) |
| A. | mouth |
| B. | intestine |
| C. | acidic medium in the pancreas |
| D. | acidic medium in the stomach |
| Answer» E. | |
| 47. |
Pepsin digests: |
| A. | fat |
| B. | cellulose |
| C. | protein |
| D. | carbohydrate |
| Answer» D. carbohydrate | |
| 48. |
Digestive process in human being is: (BHU 2002) |
| A. | intracellular |
| B. | extracellular |
| C. | both of these |
| D. | none of these |
| Answer» C. both of these | |
| 49. |
Pepsin is secreted by: |
| A. | liver |
| B. | gonads |
| C. | stomach |
| D. | intestine |
| Answer» D. intestine | |
| 50. |
Main enzyme present in gastric juice is: |
| A. | lipase |
| B. | pepsin |
| C. | amylase |
| D. | trypsin |
| Answer» C. amylase | |