21. Respiratory center is situated in:
(a) Cerebrum
(b) Medulla
(c) Cerebellum
(d) None of these
22. During sleep, the man’s blood pressure:
(a) Decreases
(b) Fluctuates
(c) Increases
(d) None
23. Red-Green Colour blindness in man is known as:
(a) Protanopia
(b) Deuteranopia
(c) Both (a) and (b)
(d) None
24. The number of factors required for blood clotting is:
(a) 7
(b) 11
(c) 13
(d) 17
25. The pH of human blood is:
(a) 6.5-7
(b) 7.5-8
(c) 8-9
(d) 4.5-5
26. The largest gland in the human body is:
(a) Heart
(b) Kidney
(c) Liver
(d) Brain
27. Which of the following is a universal blood donor?
(a) A
(b) B
(c) O
(d) A
28. A heart beat requires approximately:
(a) 0.8 second
(b) 20 seconds
(c) 1 minute
(d) 50 seconds
29. Ultra filtering unit of kidney is known as:
(a) Nephron
(b) Glomerulus
(c) Tubule
(d) Vena cava
30. In human body, the leg bones are:
(a) Humerus and Femur
(b) Fibula and Tibia
(c) Fibula and Ulna
(d) Tibia and Radius