General Biology Set 2 MCQ Solved Paper for IBPS RRB

1. The hormone secreted when one is frightened or excited
A. pituitrin
B. thyroxine
C. adrenaline
D. parathormone
Answer : C

2. The hormone which is Popularly called as stress hormone is
A. Epinephrine
B. Cortisone
C. Thyroxine
D. Insulin
Answer : A

3. The liver destroys old
A. leucocytes
B. thrombocytes
C. erythrocytes
D. lymphocytes
Answer : C

4. The pigment which is responsible for blood clotting is
A. Fibrinogen
B. Haemoglobin
C. Glucose
D. Blood cells
Answer : A

5. Insulin is produced in the human body by the
A. Heart
B. Kidney
C. Liver
D. Pancreas
Answer : D

6. Which one of the ecosystems Is the largest in the world?
A. forests
B. rivers
C. deserts
D. oceans
Answer : D

7. Modern classification of the living world recognise ___________ kingdoms.
A. two
B. three
C. four
D. five
Answer : D

8. DNA is found
A. only in cytoplasm
B. only in nucleus
C. in both cytoplasm and nucleus
D. in hybrid form only
Answer : C

9. Injection of insulin causes
A. increase in glucose in blood
B. decrease in glucose in blood
C. increase in blood pressure
D. decrease in blood pressure
Answer : B

10. Saffron is the dried ________ of the saffron plant.
A. fruit
B. aril
C. stigmas and tops of styles
D. tender leaves and sprouts
Answer : C

11. Intravascular clotting of blood is known as
A. anaemia
B. leucopenia
C. thrombosis
D. thrombin
Answer : C

12. The protoplasm of a child is exactly the same as that of its
A. mother
B. father
C. grandfather
D. identical twin
Answer : D

13. What is the colour of the outer portion of the spinal cord?
A. gray
B. brown
C. white
D. yellow
Answer : C

14. Which one of the following animals stores water in the intestine?
A. Moloch
B. Camel
C. Zebra
D. Uromastix
Answer : B

15. The rate of heartbeat is accelerated by the hormone
A. adrenaline
B. acetylcholine
C. thyroxine
D. pituitrin
Answer : A

16. Pulse rate is measured in the wrist by observing the jerks of blood In the
A. veins
B. capillaries
C. arteries
D. nerves
Answer : C

17. Nephrons are found inside
A. Liver
B. Lung
C. Brain
D. Kidneys
Answer : D

18. An organism eating its own species is called
A. carnivore
B. detritivore
C. cannibal
D. herbivore
Answer : C

19. The artificial kidney operates on the principle of
A. dialysis
B. diffusion
C. osmosis
D. active transport
Answer : A

20. Injection of insulin causes
A. increase in glucose in blood
B. decrease in glucose in blood
C. increase in blood pressure
D. decrease in blood pressure
Answer : B

21. The insect vector for the disease Leishmaniasis is
A. Tsetse fly
B. Culex
C. Phlebotomus
D. Anopheles
Answer : C

22. Haemophllia is a genetic disorder which leads to
A. decrease in haemoglobin level
B. rheumatic heart disease
C. increase in haemoglobin level
D. non-clothing of blood
Answer : D

23. The 'mad-cow disease' (Jakob-Creutzfeldt disease) is produced by certain
A. bacterium
B. virus
C. viroid
D. prion
Answer : D

24. Kwashiorkor' is caused by deficiency of
A. carbohydrates
B. proteins
C. fats
D. vitamins
Answer : B

25. Plants grown in darkness show
A. stout stem
B. long internodes
C. bigger leaves
D. no growth at all
Answer : B

26. Leafy trees help in preventing
A. Land pollution
B. Water pollution
C. Noise pollution
D. Air pollution
Answer : C

27. The specific gravity of blood
A. lower than water
B. higher than water
C. same as water
D. many times that of water
Answer : B

28. Tse-Tse fly is the vector for
A. malarial parasite
B. try peorosoma
C. piroplasm
D. microfilaria
Answer : B

29. The energy for the sperm to swim and reach the egg is provided by
A. tail
B. head
C. neck
D. mitochondria
Answer : D

30. Phonoreceptor refers to the perception of
A. light
B. sound
C. touch
D. smell
Answer : B

31. Which one of the following genetical disease is sex-linked?
A. Royal haemophilia
B. Tay-Sachs disease
C. Cystic fibrosis
D. Hypertension
Answer : A

32. HIV causes
A. cancer
B. hepatitis
C. AIDS
D. Herpes
Answer : C

33. Pearl is secreted by the __________ of the pearl oyster.
A. foot
B. mantle
C. gills
D. None of these
Answer : B

34. Animals that feed only on dead flesh are
A. herbivorous
B. carnivorous
C. omnivorous
D. carrion-eaters
Answer : D

35. Loss of blood is
A. clotting
B. receding
C. healing
D. drying up
Answer : A

36. Which among the following may carry rabies?
A. Cat
B. Dog
C. Fox
D. All the three
Answer : D

37. From the end of the Triassic to the cretaceous period the earth was ruled by
A. eurypterids
B. cotylosaurs
C. dinosaurs
D. mammals
Answer : C

38. Organisms that feed on the excreta of other organisms are called
A. autotrophs
B. heterotrophs
C. coprophagous
D. saprotrophs
Answer : C

39. Warm-bloodedness
A. means, animals living in warm climates
B. means, the warming up of blood as the temperature increases during day time
C. is characterised by constant body temperature
D. is shown by reptiles
Answer : C

40. Tuberculosis is caused by
A. tobacco
B. tubers
C. bacteria
D. virus
Answer : C

41. The hormone that is responsible for secondary sexual character in the male is
A. oestrogen
B. progesterone
C. testosterone
D. prolactin
Answer : C

42. Which of the following diseases is caused by the deficiency of iron in human body?
A. Anaemia
B. Scurvy
C. Dermatosis
D. None of these
Answer : A

43. Fledgling is a term often used to denote the young one of a
A. bird
B. fox
C. dog
D. man
Answer : A

44. The disease in which blood clotting does not take place is known as
A. Xerophthalmia
B. Haemopoeisis
C. Haemophilia
D. Haemoerythrin
Answer : C

45. The bile contains the pigments
A. haemoglobin and haemoerythrin
B. biliviridin and bilirubin
C. bilirubin and haemocyanin
D. haemoglobin and biliviridin
Answer : B

46. The pH of normal urine of man ranges from
A. 6 - 8
B. 4.5 - 6
C. 2.5 - 6
D. 8 10
Answer : A

47. The larva of the housefly is called
A. maggot
B. caterpillar
C. grub
D. wriggler
Answer : A

48. The part of the eye behind the lens is filled with
A. aqueous humor
B. vitreous humor
C. lymph
D. blood
Answer : B

49. The metallic part in haemoglobin is
A. Copper
B. Molybdenum
C. Nickel
D. Iron
Answer : D

50. Athlete's Coot is the common name for the fungal disease
A. Tinea pedis
B. Tinea cruris
C. Tinea corporis
D. Tinea capitis
Answer : A