McqMate
These multiple-choice questions (MCQs) are designed to enhance your knowledge and understanding in the following areas: General Knowledge (GK) , Uncategorized topics .
| 1. |
Which gland is not associated with human alimentary canal? |
| A. | salivary glands |
| B. | adrenal gland |
| C. | liver |
| D. | pancreas |
| Answer» B. adrenal gland | |
| 2. |
In humans, bile juice is secreted by |
| A. | pancreas |
| B. | small intestine |
| C. | esophagus |
| D. | liver |
| Answer» D. liver | |
| 3. |
An enzyme which can only act in acidic medium is |
| A. | pepsin |
| B. | trypsin |
| C. | rennin |
| D. | amylase |
| Answer» A. pepsin | |
| 4. |
The part of digestive system where no digestion occurs |
| A. | duodenum |
| B. | esophagus |
| C. | stomach |
| D. | mouth |
| Answer» B. esophagus | |
| 5. |
Which of the following animals has no need for a gall bladder? |
| A. | horse |
| B. | lion |
| C. | dog |
| D. | human |
| Answer» A. horse | |
| 6. |
About how much saliva does a person produce each day? |
| A. | 100 ml |
| B. | 250 ml |
| C. | 500 ml |
| D. | 1500 ml |
| Answer» D. 1500 ml | |
| 7. |
Saliva has the enzyme |
| A. | pepsin |
| B. | ptyalin |
| C. | trypsin |
| D. | rennin |
| Answer» B. ptyalin | |
| 8. |
Curdling of milk in the stomach is due to the action of |
| A. | pepsin |
| B. | rennin |
| C. | HCL |
| D. | rennin |
| Answer» B. rennin | |
| 9. |
Pepsinogen is secreted by |
| A. | gastric glands |
| B. | intestinal glands |
| C. | chief cells |
| D. | parietal cells |
| Answer» C. chief cells | |
| 10. |
Pancreas has |
| A. | only endocrine cells |
| B. | only one type of cell, the same functioning both in an exocrine and endocrine fashion |
| C. | two types of cells-exocrine and endocrine |
| D. | only exocrine cells |
| Answer» C. two types of cells-exocrine and endocrine | |
| 11. |
Largest gland in human body is |
| A. | liver |
| B. | pancreas |
| C. | pituitary |
| D. | thyroid |
| Answer» A. liver | |
| 12. |
Grana refers to |
| A. | glycolysis of glucose |
| B. | by-product of photosynthesis |
| C. | stacks of thylakoids |
| D. | stacks of quantasomes |
| Answer» C. stacks of thylakoids | |
| 13. |
A specific function of light energy in the process of photosynthesis is to |
| A. | activate chlorophyll |
| B. | split water |
| C. | synthesis glucose |
| D. | reduce CO2 |
| Answer» A. activate chlorophyll | |
| 14. |
ATP formation during photosynthesis is known as |
| A. | phosphorylation |
| B. | photophosphorylation |
| C. | oxidative phosphorylation |
| D. | substrate level phosphorylation |
| Answer» B. photophosphorylation | |
| 15. |
Dark reaction in photosynthesis is called so because |
| A. | it does not require light energy |
| B. | cannot occur during daytime |
| C. | occurs more rapidly at night |
| D. | it can also occur in darkness |
| Answer» A. it does not require light energy | |
| 16. |
Which of the following is connected with transport of water in plants? |
| A. | phloem |
| B. | xylem |
| C. | epidermis |
| D. | cambium |
| Answer» B. xylem | |
| 17. |
The ultimate cause for movement of water against gravity in a tree is |
| A. | osmosis |
| B. | imbibitions |
| C. | transpiration |
| D. | photosynthesis |
| Answer» C. transpiration | |
| 18. |
Which of the following is not an example of a selectively permeable membrane? |
| A. | plasma lemma |
| B. | cell Wall |
| C. | mitochondrial membrane |
| D. | chloroplast membrane |
| Answer» B. cell Wall | |
| 19. |
Which of the following is responsible for guttation? |
| A. | root pressure |
| B. | transpiration |
| C. | photosynthesis |
| D. | osmosis |
| Answer» A. root pressure | |
| 20. |
Phenyl mercuric acetate |
| A. | reduces transpiration rate |
| B. | reduces photosynthesis |
| C. | kills the plant |
| D. | reduce respiration |
| Answer» A. reduces transpiration rate | |
| 21. |
Which of the following has no blood but respires? |
| A. | earthworm |
| B. | hydra |
| C. | cockroach |
| D. | fish |
| Answer» A. earthworm | |
| 22. |
Which type of respiratory organs are present in spiders and scorpions? |
| A. | book lungs |
| B. | gill books |
| C. | gills |
| D. | lungs |
| Answer» A. book lungs | |
| 23. |
At high altitude, RBCs of human blood will |
| A. | increase in number |
| B. | decrease in number |
| C. | decrease in size |
| D. | increase in size |
| Answer» A. increase in number | |
| 24. |
Vocal cords occur in |
| A. | pharynx |
| B. | glottis |
| C. | bronchial tube |
| D. | larynx |
| Answer» D. larynx | |
| 25. |
Which one of the following structures closes the respiratory passage during ingestion of food? |
| A. | larynx |
| B. | epiglottis |
| C. | hard palate |
| D. | soft palate |
| Answer» B. epiglottis | |
| 26. |
The covering of lungs is called |
| A. | pericardium |
| B. | pleural membrane |
| C. | perichondrium |
| D. | peritoneum |
| Answer» B. pleural membrane | |
| 27. |
The narrowest and most numerous tubes of lungs are termed as |
| A. | bronchus |
| B. | alveoli |
| C. | bronchioles |
| D. | hilum |
| Answer» C. bronchioles | |
| 28. |
The exchange of gases in a mammal takes place is |
| A. | trachea |
| B. | bronchioles |
| C. | bronchi |
| D. | alveoli |
| Answer» D. alveoli | |
| 29. |
Volume of air inspired and expired with each normal breath is called |
| A. | tidal volume |
| B. | inspiratory capacity |
| C. | total lung capacity |
| D. | residual volume |
| Answer» A. tidal volume | |
| 30. |
Tidal volume of air in a normal healthy man during inspiration is about |
| A. | 300 – 400 ml |
| B. | 500 – 700 ml |
| C. | 900 – 1000 ml |
| D. | 100 – 250 ml |
| Answer» B. 500 – 700 ml | |
| 31. |
The maximum possible volume of air, which can be inspiration, is called as |
| A. | tidal air volume |
| B. | vital lung capacity |
| C. | complemental air volume |
| D. | total lung capacity |
| Answer» B. vital lung capacity | |
| 32. |
Percentage of O2 present in inhaled air in man is about |
| A. | 21% |
| B. | 78% |
| C. | 1% |
| D. | 43% |
| Answer» A. 21% | |
| 33. |
Oxygen is transported in blood mainly by |
| A. | leucocytes |
| B. | erythrocytes |
| C. | thromobocytes |
| D. | blood plasma |
| Answer» B. erythrocytes | |
| 34. |
Asthma is a respiration disease caused due to |
| A. | infection of trachea |
| B. | infection of lungs |
| C. | bleeding into pleura cavity |
| D. | spasm in bronchial muscles |
| Answer» D. spasm in bronchial muscles | |
| 35. |
Mountain sickness results due to |
| A. | anaemic hypoxia |
| B. | arterial hypoxia |
| C. | lack of sufficient RBCs |
| D. | lack of sufficient WBCs |
| Answer» B. arterial hypoxia | |
| 36. |
Which one of the following is the most common type of transpiration? |
| A. | stomatal |
| B. | lenticular |
| C. | foliar |
| D. | cuticular |
| Answer» A. stomatal | |
| 37. |
The process of the escape of liquid from the tip of uninjured leaf or through hydathodes is called |
| A. | transpiration |
| B. | guttation |
| C. | evapo-transpiration |
| D. | evaporation |
| Answer» B. guttation | |
| 38. |
In a closed circulatory system, blood is completely enclosed within |
| A. | the skeleton |
| B. | sinuses |
| C. | vessels |
| D. | hearts |
| Answer» C. vessels | |
| 39. |
The smallest blood vessel in the body is a |
| A. | capillary |
| B. | artery |
| C. | vena cava |
| D. | vein |
| Answer» A. capillary | |
| 40. |
Both erythrocytes and leucocytes are formed in the |
| A. | bone marrow |
| B. | thymus |
| C. | arterial walls |
| D. | lymph nodes |
| Answer» A. bone marrow | |
| 41. |
An erythrocyte lives for approximately |
| A. | one week |
| B. | one month |
| C. | four months |
| D. | one year |
| Answer» C. four months | |
| 42. |
The abnormal increase in the total RBC count is referred to as |
| A. | pneumonia |
| B. | polycythemia |
| C. | leucopenia |
| D. | anaemia |
| Answer» B. polycythemia | |
| 43. |
The life span of human WBC is normally |
| A. | 12–13 days |
| B. | 80-90 days |
| C. | 100-120 days |
| D. | 20-30 days |
| Answer» A. 12–13 days | |
| 44. |
The function of vitamin K is in |
| A. | regulation of calcium and phosphorus metabolism |
| B. | blood clotting |
| C. | respiration |
| D. | carbohydrate metabolism |
| Answer» C. respiration | |
| 45. |
Oxygenated blood is carried by |
| A. | pulmonary vein |
| B. | pulmonary artery |
| C. | hepatic portal vein |
| D. | renal vein |
| Answer» A. pulmonary vein | |
| 46. |
In mammals, oxygenated blood enters the heart at the |
| A. | right atrium |
| B. | left atrium |
| C. | right ventricle |
| D. | left ventricle |
| Answer» B. left atrium | |
| 47. |
Which chamber of the heart has the thickest muscular walls |
| A. | right atrium |
| B. | left atrium |
| C. | right ventricle |
| D. | left ventricle |
| Answer» D. left ventricle | |
| 48. |
When the right ventricle of heart contracts, the blood goes to |
| A. | all parts of the body |
| B. | Pulmonary arteries |
| C. | aorta |
| D. | lungs |
| Answer» D. lungs | |
| 49. |
The tricuspid valve occurs between the |
| A. | right auricle and right ventricle |
| B. | pulmonary aorta |
| C. | carotico-systemic aorta and left ventricle |
| D. | left ventricle |
| Answer» A. right auricle and right ventricle | |
| 50. |
Typical ‘lub-dub’ sound heard in heartbeat are due to |
| A. | closing of bicuspid and tricuspid valves |
| B. | closing of semilunar valves |
| C. | closure of bicuspid-tricuspid valves followed by semilunar valves |
| D. | blood under pressure through aorta |
| Answer» C. closure of bicuspid-tricuspid valves followed by semilunar valves | |
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