General Biology Set 2 MCQ Solved Paper for SSC CHSL

1. The study of heart is called
A. haematology
B. cardiology
C. pathology
D. nephrology
Answer : B

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

3. Infection of salivary glands by a virus leads to
A. tetanus
B. mumps
C. pyorrhoea
D. ulcers
Answer : B

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

5. Calcium and phosphorus assimilation will depend on sufficient intake of
A. vitamin B complex
B. vitamin D
C. vitamin A
D. vitamin C
Answer : B

6. Herbivores are
A. primary consumers
B. secondary consumers
C. tertiary consumers
D. decomposers
Answer : A

7. Blood plasma from which fibrinogen is removed is known as
A. serum
B. blood concentrate
C. lymph
D. antibody component
Answer : A

8. The gestation period for the elephant is
A. 10 months
B. 15 months
C. 22 months
D. 30 months
Answer : C

9. The biologist who believed in the spontaneous creation of microorganisms was
A. Leuwenhock
B. Needham
C. Spallanzeni
D. Pasteur
Answer : B

10. The 'father of genetics' is
A. Mendel
B. Morgan
C. Darwin
D. Muller
Answer : A

11. Sexual selection theory was propounded by
A. Wallace
B. De Vires
C. Lamarck
D. Charles Darwin
Answer : D

12. What are top carnivores?
A. biggest carnivores
B. tigers
C. all carnivorous animals
D. carnivores that are not eaten by any other animal
Answer : D

13. Maize is attacked by
A. Phytophthora
B. Pythium
C. Ustilago
D. Puccinia
Answer : C

14. Malarial parasite is brought to human host by
A. male anopheles mosquito
B. female anopheles mosquito
C. male culex
D. female culex
Answer : B

15. Blood clot Inside blood vessels is prevented by
A. heparin
B. fibrinogen
C. thrombin
D. prothrombin
Answer : A

16. Bats can fly in the dark because
A. they have a better vision in the dark
B. the light startles them
C. they produce high pitched sounds called ultrasonics
D. None of the above
Answer : C

17. The potato is a modified stem, is explained by the presence of
A. Branches
B. Leaves
C. Buds
D. Scale leaves and auxiliary buds
Answer : D

18. Lizards, snakes, crocodiles and turtles belong to the class
A. Aves
B. Reptilia
C. Mammalia
D. Amphibia
Answer : B

19. Oxygen transport is a function of
A. White Blood Corpuscles
B. Red Blood-Corpuscles
C. Blood Platelets
D. Plasma
Answer : B

20. Xerophthalmia is a deficiency disease. Deficiency of _________ causes it.
A. vitamin A
B. vitamin B
C. vitamin C
D. vitamin E
Answer : A

21. 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

22. Late Blight' is a disease that affects the _______ crop.
A. coconut
B. cashew
C. potato
D. pepper
Answer : C

23. Eosinophil™s are stained by
A. alkaline dyes
B. acidic dyes
C. neutral dyes
D. vital stains
Answer : B

24. Whooping cough is caused by
A. Salmonella
B. Bacillus pertussis
C. Variola
D. Vibriona
Answer : B

25. Which of these is most consistently observed in Vitamin B12 deficiency?
A. Pigmentation of skin
B. Red, sore tongue with capillary atrophy
C. Megaloblastic anemia
D. Absence of tendon reflexes
Answer : C

26. The external ears of man are intended for
A. ornaments
B. scattering sound waves
C. collect sound waves
D. beauty
Answer : B

27. Deciduous forests are those with trees
A. that are evergreen
B. that shed leaves periodically
C. that have needle like leaves
D. that have no leaves at all
Answer : B

28. Which of the following diseases is water borne?
A. Cholera
B. Malaria
C. Filiariasis
D. None of the above
Answer : A

29. Which of the following diseases are not bacterial?
A. cholera and diphtheria
B. trichomonasis and malaria
C. tetanus and typhoid
D. tuberculosis and leprosy
Answer : B

30. The country's first 'brain bank' that can store up to 300 human brains has been opened at
A. Alleppey
B. Bengaluru
C. Bhubaneshwar
D. Mumbai
Answer : B

31. India's first transgenic crop was
A. Potato
B. Brinjal
C. Sugarcane
D. Bt cotton
Answer : D

32. Two tall plants, each being a hybrid and carrying a recessive factor for dwarfness are crossed. What proportion of their offspring will be dwarf?
A. 0.5
B. 0.25
C. 0.75
D. 1
Answer : B

33. The grouping of blood is based on substances called
A. antibodies
B. antigens
C. antitoxin
D. enzymes
Answer : B

34. Eye is an organ that can be called as
A. Phonoreceptor
B. Thigmoreceptor
C. Photoreceptors
D. Rheoreceptor
Answer : C

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

36. The blood clotting requires the vitamin
A. A
B. B
C. C
D. K
Answer : D

37. Bacteria utilising radiant energy to prepare food are
A. chemosynthetic bacteria
B. heterotrophic bacteria
C. photosynthetic bacteria
D. free living bacteria
Answer : C

38. Viruses have
A. DNA only
B. RNA only
C. Either DNA or RNA
D. Both DNA and RNA
Answer : C

39. The thrombocytes are associated with
A. blood coagulation
B. transport of respiratory gases
C. removal of nitrogenous wastes
D. all the above
Answer : A

40. Afforestation means
A. study of forests
B. growing new forests
C. destroying the forests
D. go into the forests
Answer : B

41. The acid that is secreted in the stomach is
A. HCI
B. H2SO4
C. H2CO3
D. HNO3
Answer : A

42. Measles is caused by
A. bacteria
B. fungus
C. virus
D. protozoan
Answer : C

43. The oldest era is
A. Palaeozoic
B. Mesozoic
C. Cenozoic
D. Proterozoic
Answer : D

44. Decomposition of organic matter is due to
A. Virus
B. Fungi
C. Bacteria
D. None of these
Answer : C

45. Malnutrition is due to
A. undernourishment
B. want of balanced diet
C. overfeeding
D. All the above
Answer : A

46. The plant cells are surrounded rigidly by
A. plasmalemma
B. cell membrane
C. cell wall
D. plasma membrane
Answer : C

47. 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

48. In phototropism, auxins
A. Promote growth of cells
B. Inhibit cell division
C. Inhibit growth of cells
D. Stimulate differential growth of cells
Answer : A

49. Phototropism means that plants react to the direction of
A. sound
B. wind
C. light
D. gravity
Answer : C

50. The tallest tree in the world Sequoia™ is found in
A. UK
B. USA
C. former USSR
D. China
Answer : B