Multiple-Choice Questions on Blood System

What percentage of blood volume is composed of plasma?

• 30%

• 45%

• 55%

• 60%

What is the major function of white blood cells (WBCs)?

• Oxygen transport

• Defense against microorganisms

• Blood clotting

• Maintaining osmotic pressure

What is the normal blood volume in an adult male weighing 70 kg?

• 4 liters

• 5.6 liters

• 6.5 liters

• 7.2 liters

Which component of plasma is responsible for osmotic pressure?

• Fibrinogen

• Albumin

• Globulin

• Prothrombin

Plasma is composed of approximately ___ water.

• 70%

• 80%

• 90%

• 95%

Which of the following plasma proteins is NOT synthesized in the liver?

• Albumin

• Globulin

• Fibrinogen

• Prothrombin

The primary function of red blood cells (RBCs) is:

• Blood clotting

• Immune response

• Oxygen and carbon dioxide transport

• Hormone transport

The A/G ratio in plasma normally ranges from:

• 0.5 - 1.0

• 1.2 - 1.6

• 2.0 - 2.5

• 3.0 - 3.5

What is the main function of fibrinogen?

• Oxygen transport

• Blood clotting

• Immune response

• Osmotic balance

Which of the following contributes to the viscosity of blood?

• Albumin

• Fibrinogen

• Water

• Sodium ions