MCQOPTIONS
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MCQOPTIONS
This section includes 903 Mcqs, each offering curated multiple-choice questions to sharpen your Current Affairs knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Alkaloids found in opium do not include |
| A. | morphine |
| B. | codeine |
| C. | cocaine |
| D. | opium |
| Answer» D. opium | |
| 2. |
Chemical reaction of digestion is called as |
| A. | Hydrolysis |
| B. | oxidation |
| C. | hydrolases |
| D. | formation of ATP |
| Answer» D. formation of ATP | |
| 3. |
In ecology, Avicenna is an example of |
| A. | hydrophytes |
| B. | xerophytes |
| C. | saprophytes |
| D. | spectophyte |
| Answer» B. xerophytes | |
| 4. |
Sub-phylum Vertebrata is divided into |
| A. | 1 class |
| B. | 4 classes |
| C. | 5 classes |
| D. | 6 classes |
| Answer» D. 6 classes | |
| 5. |
Fish inability of survival in another habitat is an example of |
| A. | less differentiation |
| B. | high differentiation |
| C. | less integration |
| D. | high integration |
| Answer» C. less integration | |
| 6. |
Elements which are transported throughout plants are called |
| A. | inorganic |
| B. | sieve elements |
| C. | key elements |
| D. | phloem elements |
| Answer» C. key elements | |
| 7. |
Vessel of xylem in plants is a |
| A. | structure that keeps growing |
| B. | dead structure |
| C. | useless in perennials |
| D. | not composed of pits |
| Answer» C. useless in perennials | |
| 8. |
When capillaries join together, they form |
| A. | veins |
| B. | venules |
| C. | arterioles |
| D. | arteries |
| Answer» C. arterioles | |
| 9. |
Diabetes often results due to |
| A. | conversion of glucose to glycogen |
| B. | inability of pancreas to secrete insulin |
| C. | less water intake in diet |
| D. | unhealthy and inactive life styles |
| Answer» C. less water intake in diet | |
| 10. |
In animals and fungi, glycogen (C₂₄H₄₂O₂₁) is stored in the form of |
| A. | lipids |
| B. | amino acids |
| C. | carbohydrates |
| D. | sugars |
| Answer» D. sugars | |
| 11. |
Specificity destruction of antigen is done by |
| A. | antigens |
| B. | antibodies |
| C. | antireductants |
| D. | antioxidants |
| Answer» C. antireductants | |
| 12. |
Carbon dioxide (CO₂) can |
| A. | not be lost by root |
| B. | be lost through root hairs |
| C. | enter the root through root hairs |
| D. | not be produced in tissue respiration |
| Answer» C. enter the root through root hairs | |
| 13. |
Reaction between oxides of nitrogen (N₂) and oxygen (O₂) results in |
| A. | formation of nitric acid only |
| B. | acid rains only |
| C. | alkali rain |
| D. | formation of nitric acid and acid rains |
| Answer» E. | |
| 14. |
After contraction of ventricular muscles blood is moved via swollen portion called as |
| A. | sinus venosus |
| B. | conus arteriosus |
| C. | superior vecava |
| D. | inferior venacava |
| Answer» C. superior vecava | |
| 15. |
Removal of undigested matter is called as |
| A. | egestion |
| B. | excretion |
| C. | evaporation |
| D. | assimilation |
| Answer» B. excretion | |
| 16. |
Necrosis following death of surrounding neural tissues in blood vessels in brain can block and leads towards |
| A. | hypertension |
| B. | cerebral infarction |
| C. | myocardial infarction |
| D. | stroke |
| Answer» E. | |
| 17. |
Linkage of amino acids is known as |
| A. | condensation reaction |
| B. | oxidation reaction |
| C. | hydrolysis reaction |
| D. | reduction reaction |
| Answer» B. oxidation reaction | |
| 18. |
Loss of water during sweating stimulates |
| A. | production of ADH |
| B. | lesser reabsorption of water |
| C. | lower osmotic pressure in plasma |
| D. | release of adrenaline |
| Answer» B. lesser reabsorption of water | |
| 19. |
Capillaries bear no |
| A. | pulse |
| B. | valve |
| C. | elastic fibers |
| D. | All of the Above |
| Answer» E. | |
| 20. |
Blood pressure rises due to |
| A. | decrease in blood volume |
| B. | increase in diameter of blood vessels |
| C. | decrease in diameter of blood vessels |
| D. | inability of pituitary gland to produce hormones |
| Answer» D. inability of pituitary gland to produce hormones | |
| 21. |
Advantages of using pesticides include |
| A. | healthier crops |
| B. | better yield |
| C. | more food and profit for farmers |
| D. | all of above |
| Answer» E. | |
| 22. |
Breakage of hydrogen bonds in protein coils results in |
| A. | activation of enzymes |
| B. | denaturation of proteins |
| C. | expedites the digestive system |
| D. | inactivation of protein molecules |
| Answer» C. expedites the digestive system | |
| 23. |
If the generalized formulae of carbohydrates is CₙH₂ₘOₘ, n and m for sucrose is |
| A. | n=12 and m=10 |
| B. | n=10 and m=11 |
| C. | n=12 and m=11 |
| D. | n=10 and m=10 |
| Answer» D. n=10 and m=10 | |
| 24. |
Rhythmic contraction of heart is controlled by |
| A. | circulatory system |
| B. | immune system |
| C. | autonomic nervous system |
| D. | peripheral nervous system |
| Answer» D. peripheral nervous system | |
| 25. |
Strength is given to cell wall of xylem cells by |
| A. | lignin |
| B. | cellulose |
| C. | cell membrane |
| D. | Both a and b |
| Answer» E. | |
| 26. |
In Ascent of Sap, water and dissolved minerals are taken up by leaves through |
| A. | phloem tissue |
| B. | xylem tissue |
| C. | vascular tissue |
| D. | lamina tissue |
| Answer» C. vascular tissue | |
| 27. |
Milk glands in nursing mammals is caused due to |
| A. | rich blood supply in capillaries |
| B. | more metabolic activities |
| C. | vasolactation |
| D. | sebaceous glands |
| Answer» E. | |
| 28. |
Successive cells in pericardial muscles are separated with help of junctions called as |
| A. | inoculated |
| B. | interstitial disc |
| C. | intercalated disc |
| D. | interlaced disc |
| Answer» D. interlaced disc | |
| 29. |
Wastes of aerobic respiration (with O₂) includes |
| A. | carbon dioxide |
| B. | lactic acid |
| C. | ethanol |
| D. | energy |
| Answer» B. lactic acid | |
| 30. |
First use of pure microbiological process in an industrial procedure was made by |
| A. | Alexander Fleming |
| B. | Louis Pasteur |
| C. | Charles Darwin |
| D. | Chaim Weizmann |
| Answer» E. | |
| 31. |
In a community, food chains are linked together to form |
| A. | ecological niche |
| B. | food niche |
| C. | food web |
| D. | ecosystem |
| Answer» D. ecosystem | |
| 32. |
Hangover results in |
| A. | shaking of limbs |
| B. | more urine passed out |
| C. | lesser desire to drink water |
| D. | a very pleasurable feeling |
| Answer» B. more urine passed out | |
| 33. |
Malpighian layer finally forms the |
| A. | dermis |
| B. | cornified layer |
| C. | granular layer |
| D. | epidermis |
| Answer» C. granular layer | |
| 34. |
Chemical reaction occurring inside tissue cells is referred as |
| A. | excretion |
| B. | metabolism |
| C. | respiration |
| D. | sensation |
| Answer» C. respiration | |
| 35. |
Water pollution is primarily caused by |
| A. | forest fires |
| B. | volcanic eruptions |
| C. | biological decay |
| D. | human activities |
| Answer» E. | |
| 36. |
Heat, acids (H⁺) or alkalis (OH⁻) easily break the |
| A. | coils in proteins structure |
| B. | the glucose into galactose |
| C. | the saturated fats in cholesterol |
| D. | cellulose into glucose |
| Answer» B. the glucose into galactose | |
| 37. |
Sucrose (C₁₂H₂₂O₁₁) is not found in |
| A. | sugar beets |
| B. | carrots |
| C. | mammals |
| D. | sweet fruits |
| Answer» D. sweet fruits | |
| 38. |
Leaf base is also referred to as |
| A. | lamina |
| B. | leaf blade |
| C. | petiole |
| D. | none of others |
| Answer» E. | |
| 39. |
Interventricular septum is complete along with four chambers of heart in |
| A. | crocodiles |
| B. | amphibians |
| C. | reptiles |
| D. | mammals |
| Answer» B. amphibians | |
| 40. |
Fat globules are formed by combining soaps and |
| A. | proteins |
| B. | glucose |
| C. | lymph |
| D. | glycerol |
| Answer» E. | |
| 41. |
Continuous exchange of energy and materials are characteristic of |
| A. | transparent systems |
| B. | open systems |
| C. | hybrid systems |
| D. | closed systems |
| Answer» C. hybrid systems | |
| 42. |
Platelets are large cells which are in form of fragments are called as |
| A. | karyocytes |
| B. | megakaryocytes |
| C. | T-lymphocytes |
| D. | plasma |
| Answer» C. T-lymphocytes | |
| 43. |
Bulk of undigested material is a |
| A. | result of tissue respiration |
| B. | formed inside cells |
| C. | never absorbed in the cells |
| D. | produced due to metabolic changes |
| Answer» D. produced due to metabolic changes | |
| 44. |
Blood is sometimes retained in heart or lungs due to malfunctioning activity of heart pumping which can lead to fatal condition is called |
| A. | Angina attack |
| B. | Heart failure |
| C. | cardiac arrest |
| D. | Congestive heart failure |
| Answer» E. | |
| 45. |
Respiration carried out in the absence of oxygen is |
| A. | aerobic respiration |
| B. | anaerobic respiration |
| C. | cellular respiration |
| D. | fermentation |
| Answer» C. cellular respiration | |
| 46. |
Which is true in case of xerophytes |
| A. | does not shed leaves in periods of drought |
| B. | develop fleshy stems |
| C. | have no mechanism to store water |
| D. | rely solely on leaves for photosynthesis |
| Answer» C. have no mechanism to store water | |
| 47. |
Enzyme causing breakdown of sucrose into simple sugar (C₆H₁₂O₆) is |
| A. | pepsin |
| B. | protease |
| C. | saliva amylase |
| D. | sucrose |
| Answer» E. | |
| 48. |
First use of pure microbiological process in an industrial procedure was made by Chaim Weizmann in |
| A. | 1921 |
| B. | 1925 |
| C. | 1917 |
| D. | 1907 |
| Answer» D. 1907 | |
| 49. |
In Malaysia and Singapore, the average daily energy requirements of boys compared to girls are |
| A. | more for boys and lesser for girls |
| B. | more for girls and lesser for boys |
| C. | same for both gender |
| D. | cannot be estimated |
| Answer» B. more for girls and lesser for boys | |
| 50. |
Examples of stimulant drugs are |
| A. | barbiturates |
| B. | marijuana |
| C. | morphine |
| D. | cocaine |
| Answer» E. | |