Understanding Blood: Functions and Components

Which of the following is not a component of blood?

• Bacteria

• Platelets

• White blood cells

• Red blood cells

What is the primary role of plasma in blood?

• Acting as a liquid matrix

• Transporting oxygen

• Clotting blood

• Fighting infections

Which substances are transported by blood?

• Nutrients

• All of the above

• Hormones

• Oxygen

How does blood help in removing carbon dioxide from the body?

• By absorbing it in the skin

• By transporting it to the lungs

• By converting it to oxygen

• By storing it in cells

What is the main function of white blood cells?

• Clotting blood

• Fighting infections

• Carrying nutrients

• Transporting oxygen

Which of the following is a protective function of blood?

• Regulating temperature

• Transporting nutrients

• Fighting bacteria

• Maintaining pH balance

Which of the following is not a main function of blood?

• Transportation

• Transporting nerve cells

• Protection

• Homeostasis

How does blood contribute to homeostasis during hot weather?

• By storing heat in the core

• By reducing blood flow

• By routing blood to the skin

• By increasing blood pressure

What role does blood play in maintaining pH balance?

• It buffers the blood

• It releases carbon dioxide

• It absorbs acids

• It increases oxygen levels

What happens to blood flow in cold environments?

• It increases to the skin

• It stops completely

• It routes to the core

• It decreases to the core