(A) kidney
(B) lungs
(C) bone marrow
(D) glands
Category: Blood Mcqs
Which constituent of blood helps in clotting of blood on cuts or wounds?
(A) red blood cells
(B) white blood cells
(C) plasma
(D) platelets
By volume, the red blood cells constitute about _____% of whole blood.
(A) 15
(B) 25
(C) 35
(D) 45
Which constituent of blood fight against infections?
(A) red blood cells
(B) white blood cells
(C) plasma
(D) platelets
Oxygen is supplied from lungs to tissues and organs by
(A) red blood cells
(B) white blood cells
(C) plasma
(D) platelets
Dissolved proteins, glucose, hormones are contained in _____ of the blood
(A) red blood cells
(B) white blood cells
(C) plasma
(D) platelets
An average adult person has about _____ liters of blood by volume.
(A) 5
(B) 5.5
(C) 6
(D) 6.5
About _____% of blood consists of plasma.
(A) 45
(B) 55
(C) 65
(D) 75
Plasma constitutes 55% of blood fluid. By volume, plasma is water by
(A) 62%
(B) 72%
(C) 82%
(D) 92%
The pH value of blood is normally between _____ and _____.
(A) 6.0, 6.5
(B) 7.0, 7.35
(C) 7.35, 7.45
(D) 7.45, 7.98