MISC SCI MCQ general science questions.pptx

General science questions

1. Q.1 Night blindness is caused due to the deficiencies of _______. (a) vitamin A (b) vitamin B (c) vitamin C (d) vitamin E

2. Sol: (a) vitamin A . Vitamin A is stored in the liver of the human body . Xerophthalmia caused due to the deficiency of VIT A RATAUNDHI Vitamins were invented by Kazimierz Funk.

3. Q.2 Excessive bleeding during an injury is a deficiency of _________. (a) vitamin A (b) vitamin B (c) vitamin K (d) vitamin E

4. ANS (c) Vitamin K Required for blood coagulations Prothrombin is an essential factor responsible for the coagulation of blood.

5. Q.3 Which is not a vitamin deficiency disease? (a) Cheilosis (b) Scurvy (c) Rickets (d) Marasmus & Kwashiorkor 

6. Ans (d ) Marasmus & Kwashiorkor  They are caused by protein deficiency.

7. Q.4 Which of the following is a water-soluble vitamin ? a) Vitamin A b) Vitamin C c) Vitamin D d) Vitamin K

8. Correct Answer: b) Vitamin C Explanation:   Water-soluble vitamins dissolve in water and include vitamin C and the B vitamins. They are not stored in the body and need to be replenished regularly. It is also known as ascorbic acid

9. Q.5 What is the chemical name of Vitamin B9? ( a) Folic Acid (b) Cyanocobalamin (c) Calciferol (d) Tocopherols

10. Ans .( a) Folic Acid Explanation : The chemical name of Vitamin B9 is folic Acid

11. Q.6 Which of the following is responsible for the conversion of milk into curd ? (a) Enzyme (b) Fungus (c) Vitamin (d) Bacteria

12. Ans. (d) Bacteria Explanation : Lactobacillus bacteria is responsible for the conversion of milk into curd.

13. Q.7 Starch is a ? (a) Disaccharides (b) Monosaccharides (c) Polysaccharides (d) None of these

14. Ans. (c) Polysaccharide Explanation : Starch is a Polysaccharide compound.

15. Q.8 Which mineral is important for maintaining healthy blood pressure ? a) Iron b) Calcium c) Potassium d) Zinc

16. ANS:   ( c ) Potassium Explanation:   Potassium helps regulate blood pressure by balancing the effects of sodium and supporting proper muscle and nerve function

17. Q.9 Which of the following is caused by deficiency of Thiamin ? (a) Pellagra (b) Beri-Beri (c) Osteomalacia (d) Stomatitis

18. Ans. (b) Beri-Beri Explanation : Thiamin is the chemical name of Vitamin B1 whose deficiency caused Beri-Beri .

19. Q.10 Which of the following vitamin is also known as niacin and plays a vital role in many digestive tract functions ? (a) vitamin B1 (b) vitamin B2 (c) vitamin B3 (d) vitamin B12

20. ANS.(c ) vitamin B3 N iacin deficiency cause- Pellagra

21. Q.11 Which of the following is an important source of vitamin E ? (a) Palm oil (b) Coconut oil (c) Mustard oil (d) Wheat germ oil

22. Ans . ( d) Wheat germ oil Explanation- The richest sources of vitamin E are cooking oils , (especially wheat germ oil). The Deficiency of vitamin E leads to Weakness in muscles

23. Q.12 What species causes typhoid fever ? (a) Virus (b) Bacteria (c) Fungus (d) Allergy

24. Q.13 Which one of the given diseases is caused by protozoa ? (a) Malaria (b) Diphtheria (c) Cholera (d) Pneumonia

25. Ans. (a) Malaria Explanation : Malaria is caused by a protozoa parasite called Plasmodium and its carrier is the female anopheles mosquito . Spleen is affected by malaria and it often becomes enlarged in malaria.

26. Q.14 W hich organ gets affected in Weil’s disease ? (a) Liver (b) Lung (c) Heart (d) Kidney

27. Ans. (d) Kidney Explanation - The classic form of severe leptospirosis, known as Weil’s disease, is characterized by liver damage (causing jaundice), kidney failure, and bleeding, which happens in 5–10% of those infected.

28. Q.15 Hydrophobia is caused by which of the following options ? (a) Virus (b) Bacteria (c) Protozoan (d) Fungus

29. Ans. (a) Virus Explanation : Hydrophobia is the fear of water and a virus that causes it . It is an old name for rabies . It affects the nervous system.

30. Q.16 Which mosquito causes the Zika virus ? (a) H1N1 (b) Tick-transmitted virus (c) The varicella zoster virus (d) It is transmitted by Aedes Mosquitoes

31. Ans. (d) It is transmitted by Aedes Mosquitoes Explanation- Zika virus disease is caused by a virus transmitted primarily by Aedes Mosquitoes

32. Q.17 Which of the given is responsible for yellow fever ? (a) Housefly (b) Mosquito (c) Water (d) Bacteria

33. Ans. (b) Mosquito Explanation : Yellow fever is caused by the bite of a female mosquito name Aedes aegypti .

34. Q.18 Amoxicillin , Doxycycline Azithromycin, and Penicillin are some examples of ________. (a) Bacteria (b) Pathogens (c) Antibiotics (d) Vaccinations

35. ANSWER(c ) Antibiotics ALEXANDER FLEMING discovered 1 st antibiotic

36. Q.19 Diarrhoea is caused by which of the given vectors ? (a) Amoeba (b) Bacteria (c) Fungus (d) Rotavirus

37. Ans. (d) Rotavirus Explanation : Rotavirus is a group of RNA viruses. It is the most common cause of severe diarrhoea among infants and young children.

38. Q.20 Dropsy disease is caused by which of the given substances ? (a) Mustard oil (b) kerosene oil (c) Sugar (d) Salt

39. Ans. (a) Mustard oil Explanation : Dropsy disease is characterized by swelling of the body tissue due to the accumulation of fluids . It is caused due to intake of adulterated mustard oil.

40. Q.21 Which of the given is responsible for Itai-Itai disease ? (a) Cadmium (b) Lead (c) Nickel (d) Mercury

41. Ans. (a) Cadmium Explanation : Itai-Itai disease is caused due to the prolonged poisoning of cadmium.

42. Q.22 Malfunctioning of which one of the following causes diabetes ? (a) Liver (b) pancreas (c) Kidney (d) Heart

43. Ans. ( b) pancreas Explanation- Malfunction of the pancreas causes diabetes. The most important hormone that the pancreas produce is insulin . Sir Frederick Grant Banting was a  Canadian medical scientist known as the co-discoverer of insulin and its therapeutic potential.

44. Q.23 Which glands control blood pressure ? (a) Parathyroid (b) Thyroid (c) Thymus (d) Adrenal

45. Ans. (d) Adrenal Explanation- Adrenal glands produce hormones that help regulate your metabolism, immune system, blood pressure, response to stress, and other essential functions.

46. Q.24 Which is the largest part of the blood ? A. Red Blood Cells B. White Blood Cells C. Plasma D. Platelets

47. Ans. C ( Plasma) Explanation:   The blood is made up of liquid and solids . The liquid part is known as plasma which is made up of water, salt and protein. Over half of the blood is plasma. Plasma Therapy / Convalescent Plasma Therapy (CPT). It can be a possible treatment for COVID-19 . T he blood from recovered person is used to treat other sick people as it is rich in antibodies. The convalescent plasma is the liquid part of the blood from the recovered patients of COVID-19. The idea behind the Plasma therapy is that antibodies produced by the patients who have had survived the virus will boost the immune system of those who are critically ill or fighting with the COVID-19.

48. Q.25 What happens in the body of a person who is suffering from dengue fever ? (a) His platelets decrease (b) His sugar level increases (c) His sugar level decreases (d) His platelets increase

49. Ans. (a) His platelets decrease Explanation : When a person is suffering from dengue fever, his platelets decrease. This person suffers from an excess of internal bleeding . It is caused through the bite of an infected Aedes aegypti

50. IMPORTANT ONE LINERS Q.1   What is the body’s largest organ? Answer:   Skin Q.2   What is the body’s longest bone? Answer:   Femur/THIGH BONE Q.3   What is the scientific name for the voice box? Answer:   Larynx Q.4  Which part of the eye controls the amount of light entering the pupil? Answer:   Iris

51. Q.5   Which gland regulates metabolism and is located in the neck? Answer:  Thyroid Q.6   Which blood vessels carry oxygenated blood away from the heart? Answer:   Arteries Q.7   What is the outermost layer of the skin called? Answer:   Epidermis Q.8   Which organ filters and cleans the blood in the body? Answer:   Kidneys Q.9  What is the body’s largest internal organ? Answer:   Liver

52. Q.10   Which gland regulates sleep patterns and is often called the “body clock”? Answer:  Pineal Q.11   What is the small, flap-like structure that prevents food from entering the windpipe? Answer:   Epiglottis Q. 12 Which part of the brain controls balance and coordination? Answer:   Cerebellum Q.13 Which of the following parts of the brain controls body temperature and hunger? Answer: Hypothalamus

53. Q.14   What is the body’s primary organ for balance? Answer :   Ear Q.15  Which organ is responsible for producing red and white blood cells? Answer:  Bone Marrow Q.16  What is the small, finger-like projections in the small intestine that increase surface area? Answer:   Villi Q.17   Which of the following organs is known as the “graveyard” of RBCs? Answer: Spleen Q.18 Who discovered the blood group? Answer: Landsteiner