Functions of Blood Components

Blood is a vital fluid in animals, performing essential functions like transporting oxygen, nutrients, and waste. It consists of blood cells and plasma, with red blood cells carrying oxygen, white blood cells fighting infections, and platelets aiding in clotting. Plasma, mostly water, transports nutrients and waste. Blood components separate by density when drawn, with plasma rising and cells settling. Understanding blood's composition and functions is crucial for comprehending its role in health and disease.

What is one of the primary functions of blood as it circulates through the body?

• To deliver oxygen and nutrients

• To remove skin cells

• To produce hormones

• To cool down the body

What percentage of blood is made up of plasma?

• 75%

• 65%

• 55%

• 45%

What is the primary role of blood plasma?

• To store vitamins

• To produce red blood cells

• To fight infections

• To transport nutrients and waste

What happens to blood components when blood is drawn and left to settle?

• Red blood cells float

• White blood cells dissolve

• Plasma rises to the top

• They mix together

What is the shape of red blood cells?

• Irregular

• Cubical

• Flat and round with a dent

• Spherical

What is the main function of red blood cells?

• To store fat

• To clot blood

• To carry oxygen

• To fight infections

How do white blood cells help the body?

• By carrying oxygen

• By responding to diseases and infections

• By transporting nutrients

• By storing energy

What is the role of platelets in the blood?

• To carry nutrients

• To help blood clot

• To transport oxygen

• To fight infections

What percentage of blood volume do white blood cells and platelets make up together?

• 1%

• 10%

• 25%

• 50%

What happens when blood forms a clot on the surface of wounded skin?

• It dissolves

• It forms a scab

• It turns into plasma

• It becomes white blood cells