MCQOPTIONS
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MCQOPTIONS
This section includes 255 Mcqs, each offering curated multiple-choice questions to sharpen your General Knowledge (GK) knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
An erythrocyte lives for approximately |
| A. | one week |
| B. | one month |
| C. | four months |
| D. | one year |
| Answer» D. one year | |
| 2. |
The abnormal increase in the total RBC count is referred to as |
| A. | pneumonia |
| B. | polycythemia |
| C. | leucopenia |
| D. | anaemia |
| Answer» C. leucopenia | |
| 3. |
In humans, bile juice is secreted by |
| A. | pancreas |
| B. | small intestine |
| C. | esophagus |
| D. | liver |
| Answer» E. | |
| 4. |
Which gland is not associated with human alimentary canal? |
| A. | salivary glands |
| B. | adrenal gland |
| C. | liver |
| D. | pancreas |
| Answer» C. liver | |
| 5. |
An enzyme which can only act in acidic medium is |
| A. | pepsin |
| B. | trypsin |
| C. | rennin |
| D. | amylase |
| Answer» B. trypsin | |
| 6. |
About how much saliva does a person produce each day? |
| A. | 100 ml |
| B. | 250 ml |
| C. | 500 ml |
| D. | 1500 ml |
| Answer» E. | |
| 7. |
The part of digestive system where no digestion occurs |
| A. | duodenum |
| B. | esophagus |
| C. | stomach |
| D. | mouth |
| Answer» C. stomach | |
| 8. |
Which of the following animals has no need for a gall bladder? |
| A. | horse |
| B. | lion |
| C. | dog |
| D. | human |
| Answer» B. lion | |
| 9. |
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» D. only exocrine cells | |
| 10. |
Curdling of milk in the stomach is due to the action of |
| A. | pepsin |
| B. | rennin |
| C. | HCL |
| D. | rennin |
| Answer» C. HCL | |
| 11. |
Saliva has the enzyme |
| A. | pepsin |
| B. | ptyalin |
| C. | trypsin |
| D. | rennin |
| Answer» C. trypsin | |
| 12. |
Pepsinogen is secreted by |
| A. | gastric glands |
| B. | intestinal glands |
| C. | chief cells |
| D. | parietal cells |
| Answer» D. parietal cells | |
| 13. |
Which of the following is connected with transport of water in plants? |
| A. | phloem |
| B. | xylem |
| C. | epidermis |
| D. | cambium |
| Answer» C. epidermis | |
| 14. |
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» B. split water | |
| 15. |
Grana refers to |
| A. | glycolysis of glucose |
| B. | by-product of photosynthesis |
| C. | stacks of thylakoids |
| D. | stacks of quantasomes |
| Answer» D. stacks of quantasomes | |
| 16. |
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» B. cannot occur during daytime | |
| 17. |
ATP formation during photosynthesis is known as |
| A. | phosphorylation |
| B. | photophosphorylation |
| C. | oxidative phosphorylation |
| D. | substrate level phosphorylation |
| Answer» C. oxidative phosphorylation | |
| 18. |
The ultimate cause for movement of water against gravity in a tree is |
| A. | osmosis |
| B. | imbibitions |
| C. | transpiration |
| D. | photosynthesis |
| Answer» D. photosynthesis | |
| 19. |
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» C. mitochondrial membrane | |
| 20. |
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» B. decrease in number | |
| 21. |
Which of the following has no blood but respires? |
| A. | earthworm |
| B. | hydra |
| C. | cockroach |
| D. | fish |
| Answer» B. hydra | |
| 22. |
Which of the following is responsible for guttation? |
| A. | root pressure |
| B. | transpiration |
| C. | photosynthesis |
| D. | osmosis |
| Answer» B. transpiration | |
| 23. |
Phenyl mercuric acetate |
| A. | reduces transpiration rate |
| B. | reduces photosynthesis |
| C. | kills the plant |
| D. | reduce respiration |
| Answer» B. reduces photosynthesis | |
| 24. |
Which type of respiratory organs are present in spiders and scorpions? |
| A. | book lungs |
| B. | gill books |
| C. | gills |
| D. | lungs |
| Answer» B. gill books | |
| 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» C. hard palate | |
| 26. |
There are how many pairs of spinal nerves in a human |
| A. | 8 |
| B. | 12 |
| C. | 25 |
| D. | 31 |
| Answer» E. | |
| 27. |
There are how many pairs of cranial nerves in a human? |
| A. | 8 |
| B. | 12 |
| C. | 25 |
| D. | 31 |
| Answer» C. 25 | |
| 28. |
Which of the hormones is responsible for the emotional state such as fear and anger and causes rise of blood pressure and rate of heartbeat? |
| A. | insulin |
| B. | adrenaline |
| C. | progesterone |
| D. | thyroxine |
| Answer» C. progesterone | |
| 29. |
Pituitary gland is found in |
| A. | around trachea |
| B. | gonad |
| C. | pancreas |
| D. | brains |
| Answer» E. | |
| 30. |
Function of a Centriole is |
| A. | formation of spindle fibers |
| B. | formation of nucleolus |
| C. | initiation of cell division |
| D. | formation of cell plate |
| Answer» B. formation of nucleolus | |
| 31. |
Which of the following is a non-poisonous snake? |
| A. | cobra |
| B. | python |
| C. | viper |
| D. | krait |
| Answer» C. viper | |
| 32. |
Functional activities of a cell are controlled by |
| A. | nucleus |
| B. | nucleolus |
| C. | mitochondria |
| D. | cytoplasm |
| Answer» B. nucleolus | |
| 33. |
DTP vaccine is given to infants to immunize them against |
| A. | diphtheria, pneumonia and typhoid |
| B. | diphtheria, whooping cough and tetanus |
| C. | diarrhea, pneumonia and tuberculosis |
| D. | diphtheria, whooping cough and typhoid |
| Answer» C. diarrhea, pneumonia and tuberculosis | |
| 34. |
Which of the following diseases is caused by a virus? |
| A. | typhoid |
| B. | cholera |
| C. | influenza |
| D. | diphtheria |
| Answer» D. diphtheria | |
| 35. |
Jaundice is a disease of |
| A. | kidney |
| B. | pancreas |
| C. | liver |
| D. | duodenum |
| Answer» D. duodenum | |
| 36. |
Male mosquito does not carry malarial parasite because: |
| A. | it is too small to bite man. |
| B. | it lacks the modified mouth parts |
| C. | malarial parasites cannot reproduce in them. |
| D. | female mosquito is more deadly |
| Answer» C. malarial parasites cannot reproduce in them. | |
| 37. |
In summer, the clocks |
| A. | become slow |
| B. | become fast |
| C. | gives correct time |
| D. | lose time |
| Answer» B. become fast | |
| 38. |
Bark of which plant yields famous drug of malaria? |
| A. | cinchona |
| B. | quercus |
| C. | betula |
| D. | eucalyptus |
| Answer» B. quercus | |
| 39. |
Deficiency of vitamin C causes |
| A. | rickets |
| B. | beriberi |
| C. | scurvy |
| D. | night blindness |
| Answer» D. night blindness | |
| 40. |
Continuous fever, headache, slow pulse, pain in the stomach, rose colored ashes are the major symptoms of |
| A. | plague |
| B. | typhoid |
| C. | mumps |
| D. | measles |
| Answer» E. | |
| 41. |
The mercury barometer was invented by |
| A. | Celsius |
| B. | Fahrenheit |
| C. | Torricelli |
| D. | Bernoulli |
| Answer» D. Bernoulli | |
| 42. |
Pressure is a |
| A. | scalar quantity |
| B. | vector quantity |
| C. | normal force |
| D. | all the above are wrong |
| Answer» B. vector quantity | |
| 43. |
A bird flying in the sky has |
| A. | K.E. only |
| B. | P.E. only |
| C. | neither K.E. nor P.E. |
| D. | both K.E. and P.E. |
| Answer» E. | |
| 44. |
If there were no ultraviolet rays reaching the earth, human should suffer from deficiency of |
| A. | fatty acids |
| B. | essential amino acids |
| C. | vitamin D |
| D. | vitamin E |
| Answer» D. vitamin E | |
| 45. |
Sound becomes a hazardous noise pollution if its level is a above |
| A. | 30 Db |
| B. | 120 dB |
| C. | 80 dB |
| D. | 150 Db |
| Answer» D. 150 Db | |
| 46. |
Maximum threat to the world is from (among the following) |
| A. | global warming |
| B. | ozone hole |
| C. | water pollution |
| D. | soil erosion |
| Answer» C. water pollution | |
| 47. |
Slaked lime reacts with chlorine to give |
| A. | baking soda |
| B. | washing soda |
| C. | bleaching powder |
| D. | cement |
| Answer» D. cement | |
| 48. |
Cake does not taste bitter due to presence of |
| A. | sodium carbonate |
| B. | tartaric acid |
| C. | citric acid |
| D. | sugar |
| Answer» C. citric acid | |
| 49. |
The real bleaching agent present in bleaching powder is |
| A. | chlorine |
| B. | oxygen |
| C. | oxygen |
| D. | CaO |
| Answer» B. oxygen | |
| 50. |
The main constituent of cement is |
| A. | SiO2 |
| B. | CaO |
| C. | CaSO4 |
| D. | Al2O3 |
| Answer» B. CaO | |