General Biology Set 2 1000+ MCQ with answer for SSC Scientific Assistant

1. Which of the following plays an important part in photosynthesis?
A. Chloroplast
B. Centrosome
C. Tonoplast
D. Nematoblast
Answer : A

2. The hypoglossal nerves are the pairs of the spinal nerves
A. First pair
B. Second pair
C. Third pair
D. Fourth pair
Answer : A

3. It is possible to produce seedless tomato fruits by
A. applying trace elements in tomato fields
B. spraying mineral solution on plants
C. spraying harmones on flowers
D. applying fertilizers containing radioactive elements
Answer : C

4. The blood pressure is controlled by the hormone
A. Vasopressin
B. Oxytocin
C. Oestrogen
D. Testasterone
Answer : A

5. Genes are arranged in chromosomes
A. In clusters
B. In binary fashion
C. In linear fashion
D. Scattered
Answer : C

6. Hydrotropism means the growth of roots
A. away from water
B. towards water
C. into water
D. out of water
Answer : B

7. Bird nu is a disease which affects and spreads through
A. Cattle
B. Sheep
C. Prawn
D. Poultry
Answer : D

8. Which of the following is NOT a viral disease?
A. Chicken-pox
B. Influenza
C. Epilepsy
D. Measles
Answer : C

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

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

11. Lactose and Rennin, the enzymes required to digest milk, disappear in the human body by the age of _______ years.
A. 2
B. 3
C. 5
D. 8
Answer : A

12. Blood is a kind of
A. epithelial tissue
B. connective tissue
C. nervous tissue
D. cartilage
Answer : B

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

14. The spores of Puccinia formed on the leaves of wheat are called
A. Basidiospores
B. Ascidiospores
C. Uredospores
D. Pycnospores
Answer : C

15. The diseases that are caused by lack of vitamins are called
A. deficiency diseases
B. communicable diseases
C. epidemics
D. tropical diseases
Answer : A

16. Oxygen transportation in human body takes place through
1) Blood
2) Lungs
3) Tissue
The correct sequence of transportation is
A. 1, 2 and 3
B. 3, 1 and 2
C. 2, 1 and 3
D. 1,3 and 2
Answer : C

17. Coagulation of blood in vessels is prevented during normal circulation by
A. heparin
B. prothrombin
C. plasmogen
D. thromboplastin
Answer : A

18. Lymphocytes are manufactured by
A. bone marrow
B. spleen
C. liver
D. lymph nodes
Answer : B

19. Insulin is concerned with the metabolism of
A. sugar
B. fats
C. proteins
D. vitamins
Answer : A

20. The olfactory area is concerned with
A. smell
B. sight
C. hearing
D. speech
Answer : A

21. When the earth was formed it had an atmosphere with
A. Hydrogen, Oxygen and Nitrogen
B. Water Vapour, Hydrogen and Oxygen
C. Oxygen, Carbondioxide and Nitrogen
D. Water Vapour, Ammonia and Methane
Answer : D

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

23. The universal donor belongs to blood group
A. A
B. B
C. AB
D. O
Answer : D

24. Veins carry blood
A. towards the heart
B. away from the heart
C. both to and from the heart
D. only around the heart
Answer : A

25. In one minute normally the heart beats
A. 60 times
B. 80 times
C. 100 times
D. 72 times
Answer : D

26. The condition in which there is abnormal decrease of white blood corpuscles is known as
A. leukaemia
B. leucoderma
C. leukopenia
D. anaemia
Answer : C

27. The metallic part of haemoglobin is
A. copper
B. molybdenum
C. nickel
D. iron
Answer : D

28. The brain is covered by
A. meninges
B. bone
C. skin
D. All the above
Answer : D

29. Which of the following is a disease of brain?
A. SARS
B. AlDS
C. Diabetes
D. Alzheimer's
Answer : D

30. Compared to the veins, the walls of arteries are
A. thicker
B. thinner
C. similar
D. very much thinner
Answer : A

31. A plant cell is distinguishable from an animal cell by the presence of
A. nucleus
B. cell wall
C. chloroplasts
D. cell membrane
Answer : B

32. Valves are present inside
A. arteries
B. capillaries
C. veins
D. aorta
Answer : C

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

34. Which one of the following is not caused by bacteria?
A. Tuberculosis
B. Typhoid
C. Cholera
D. Mumps
Answer : D

35. Necrosis is a symptom which is recognised by
A. pattern colouration on leaves
B. little leaves
C. out growth
D. death of tissues
Answer : D

36. Which of the following diseases is not caused by a virus?
A. Cancer
B. Rabies
C. AlDS
D. Severe Acute Respiratory Syndrome (SARS)
Answer : A

37. 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

38. What is the other name for the brain?
A. myelon
B. encephalon
C. cephalon
D. All the above
Answer : B

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

40. The counting of RBCs is done with
A. haemocytometer
B. haemoglobinometer
C. clinostat
D. thermometer
Answer : A

41. Green plants In the sea are useful for respiration of flash because they
A. release oxygen
B. release carbon dioxide
C. release oxygen and carbon dioxide simultaneously
D. take oxygen and give out carbon dioxide
Answer : A

42. The function of ribosomes is
A. Secretion
B. Excretion
C. Power house of the cell
D. Protein synthesis
Answer : D

43. Eugenics is the application of genetics to improve
A. crop plants
B. fruit trees
C. cattle
D. human beings
Answer : D

44. Which one of the following is both an exocrine and an endocrine gland?
A. Gastric glands
B. Pancreas
C. Salivary glands
D. Liver
Answer : B

45. Which one of the following cells helps in storing water and food materials?
A. Parenchyma cell
B. Flame cell
C. Nematoblast
D. None of the above
Answer : A

46. Which among the following is a Cast growing tree?
A. Teak
B. Eucalyptus
C. Banyan
D. Coconut
Answer : B

47. Which among the following vitamins is considered to be a harmone?
A. A
B. B
C. C
D. D
Answer : B

48. Leaves Call off branches In the winter because of
A. fall in atmospheric pressure
B. completion of the duration of life of the plant
C. formation of separation (absciss layer) just outside the cork
D. shortening of day time
Answer : C

49. Legumes are highly nutritious because they are rich in
A. starch
B. oils
C. fat
D. protein
Answer : D

50. The science dealing with diseases of plants is called
A. Plant anatomy
B. Plant ecology
C. Plant pathology
D. Plant morphology
Answer : C