50 BEST MCO 'S OF BIOLOGY
*1. What is the body temperature of a normal man?*
A. 81.1oC
B. 36.9oC
C. 98.6oC**
D. 21.7oC
*2. Which of the following helps in clotting of blood?*
A. Vitamin B1
B. Vitamin B2
C. Vitamin D
*D. Vitamin K**
*3.Total volume of blood in a normal adult human being is*
A. 5-6 liters***
B. 3-4 liters
C. 8-10 liters
D. 10-12 liters
*4. Red blood corpuscles are formed in the*
A. Liver
*B. Bone marrow**
C. Kidneys
D. Heart
*5. How many bones are there in an adult human being?*
A. 210
B. 260
C. 206**
D. 300
*6. The pancreas secretes*
*A. Insulin**
B. Bile juice
C. Peptic juice
D. None of these
*7. Tibia is a bone found in the*
A. Skull
B. Arm
*C. Leg**
D. Face
*8. The largest part of the human brain is the*
A. Medulla oblongata
B. Cerebellum
*C. Cerebrum**
D. None of these
*9. What is the main component of bones and teeth?*
A. Calcium carbonate
*B. Calcium phosphate**
C. Calcium sulphate
D. Calcium nitrate
*10. The main constituent of hemoglobin is*
A. Chlorine
*B. Iron***
C. Calcium
D. None of these
*11. The main function of the kidney is*
A. To control blood pressure
B. To control body temperature
*C. To remove waste product from the body**
D. To help in digestion of food
*12. The function of hemoglobin is
*A. Transportation of oxygen**
B. Destruction of bacteria
C. Prevention of anemia
D. Utilization of energy
*13. Which of the following glands secrete tears?*
*A. Lachrymal***
B. Pituitary
C. Thyroid
D. Pancreas
*14. Which is the largest gland in the human body?*
A. Thyroid
*B. Liver***
C. Pancreas
D. None of these
*15. Which is the largest organ in the human body?*
A. Liver
B. Heart
*C. Skin***
D. Kidney
*16. A person of which of the following blood groups is called a universal donor?*
*A. O***
B. AB
C. A
D. B
*17. Which gland in the human body is called the master gland?*
A. Pancreas
B. Thyroid
*C. Pituitary***
D. Spleen
*18. How many bones are there in a newly born infant?*
A. 206
B. 230
C. 280
*D. 300***
*19. Which of the following have maximum calorific value?*
*A. Carbohydrates***
B. Fats
C. Proteins
D. Vitamins
*20. Which of the following vitamins promote healthy functioning of eyes in human beings?*
A. Vitamin B
B. Vitamin C
*C. Vitamin A***
D. Vitamin D
*21. The average heartbeat per minute in a normal man is*
A. 50 B. 70**
C. 80 D. 100
*22. A person with which of the following blood groups can receive blood of any group?*
A. A
B. AB***
C. B
D. O
*23. Malaria is a disease which effects the*
A. Heart
B. Lungs
*C. Spleen***
D. Kidneys
*24. Which of the following diseases is caused by virus?*
*A. Small pox *** B. Tuberculosis
C. Malaria
D. Cholera
*25. Medulla oblongata is a part of human
A. Heart
*B. Brain***
C. Liver
D. Sex organ
*26. Myopia is a disease connected with
A. Ears
*B. Eyes***
C. Lungs
D. Brain
*27. Leukemia is a disease of the*
A. Lungs
*B. Blood***
C. Skin
D. Nerves
*28. Short-sightedness can be corrected by using*
A. Convex lens *B. Concave lens***
C. Convex-concave lens D. Concave-convex lens
*29. Trachoma is a disease of the*
A. Liver
*B. Eyes***
C. Lungs
D. Kidneys
*30. Match the following
Column I Column II
A. Beriberi 1. Vitamin A
B. Scurvy 2. Vitamin B
*C. Rickets 3. Vitamin C**
D. Night Blindness 4. Vitamin D
*31. Typhoid and cholera are typical examples of
A. Infectious diseases B. Air-borne disease
*C. Water-borne disease** D. None of these
*32. Pyorrhea is a disease of the*
A. Nose
*B. Gums***
C. Heart
D. Lungs
*33. Lack of what causes diabetes.*
A. Sugar
*B. Insulin***
C. Calcium
D. Vitamins
*34. Appendix is appendix is a part of*
A. Small intestine *B. Large intestine***
C. Stomach D. Liver
*35. Match the following columns*
Column I Column II
*A. Cataract 1. Bones**
B. Jaundice 2. Eyes
C. Diabetes 3. Liver
D. Arthritis 4. Pancreas
*36. Bronchitis is a disease of which of the following organs?*
A. Blood
B. Bladder
C. Liver
*D. Respiratory tract**
*37. ECG is used for the diagnosis of aliments of*
A. Brain *B. Heart***
C. Kidneys D. Lungs
38. Biopsy is done on
*A. Tissues taken from a dead body*
*B. Tissues taken form a living body*
C. Blood from veins
D. Blood from arteries
39. Barium is used for
A. Checking blood group
*B. X-ray of alimentary canal*
C. X-ray of brain
D. None of these
*40. Dialysis is used for the treatment of*
*A. Kidney failure*** B. Heart weakness
C. Brain diseases D. None of these
*41. Insulin is injected into the intestines by*
*A. Pancreas* ** B. Liver
C. Stomach D. Gall bladder
*42. Lock Jaw, i.e., difficulty in opening the mouth is a symptom of*
A. Cholera B. Plague
*C. Tetanus*** D. Diphtheria
*43. Which of the following pairs is incorrect?*
A. Plague-rats B. Rabies-dog
C. Tapeworm-pig *D. Poliomyelitis-monkey*
*44. Match the following columns*
Column I Column II
A. Air-borne 1. Tetanus
*B. Airborne 2. Tuberculosis***
C. Contact 3. Cholera
D. Wound 4. Syphilis
*45. Ricketts is a disease of the*
*A. Bones***
B. Tissue
C. Muscles
D. Blood
*46. Which of the following statements is correct*
A. Pulmonary artery carries pure blood
*B. Pulmonary artery carries impure blood**
C. Pulmonary vein carries impure blood
D. None of these
*47. Lungs are situated in the*
A. Abdominal cavity
B. Pericardial cavity
C. Buccal cavity
*D. Thoracic cavity**
*48. The human cell contains*
A. 44 chromosomes
B. 48 chromosomes
*C. 46 chromosomes**
D. 23 chromosomes
*49. Enzymes help in*
A. Respiration
*B. Digestion of food**
C. Immune system
D. Reproduction
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