GENERAL SCIENCE (GENERAL STUDIES) Part-3

Total Questions: 50

41. In anaerobic respiration –

Correct Answer: (d) Carbon dioxide is given out

42. Human red blood cells transport –

Correct Answer: (a) oxygen

43. The plasma is composed mainly of which chemical ?

Correct Answer: (b) Water

44. In humans, gas exchange and gas transport occur as a result of the functioning of a system of

Correct Answer: (d) lungs and blood vessels

45. The exchange of gases in the alveoli of the lungs take place by

Correct Answer: (b) simple diffusion

46. A pacemaker is meant for

Correct Answer: (c) initiation of heart beats

47. Normal blood pressure (systolic/diastolic) is

Correct Answer: (a) 120/80 mm of Hg

48. We think lichens are cool because –

Correct Answer: (b) They are a combination of cyanobacteria and fungi.

49. Which is a member of the fungi kingdom?

Correct Answer: (d) All of these

50. A bacteria flagellum is –

Correct Answer: (b) A tail-like structure for movement.