Quiz on Blood Composition and Functions

What is the primary function of blood?

• To store fat

• To regulate body temperature

• To transport nutrients and oxygen

• To produce hormones

What is the main component of blood plasma?

• Water

• White blood cells

• Red blood cells

• Proteins

How many liters of blood does an average adult have?

• 10 liters

• 5 liters

• 7 liters

• 3 liters

What is the shape of red blood cells?

• Disc-shaped

• Spherical

• Irregular

• Cubical

Where are red blood cells produced?

• Red bone marrow

• Spleen

• Liver

• Kidneys

What condition is caused by a deficiency of red blood cells or hemoglobin?

• Leukemia

• Anemia

• Thrombosis

• Hemophilia

What is the primary role of white blood cells?

• Clotting blood

• Transporting oxygen

• Defending against pathogens

• Carrying nutrients

What is the function of platelets?

• Transporting carbon dioxide

• Producing antibodies

• Regulating blood pressure

• Blood clotting

What initiates the blood clotting process?

• Plasma proteins

• Platelets

• White blood cells

• Red blood cells

What happens to the number of white blood cells during an infection?

• It decreases

• It remains the same

• It increases

• It fluctuates randomly