CLEAN : Stock shots of San Jose, capital of Costa

The video provides an introduction to the components and functions of blood, explaining its vital role in the human body.

What is the primary role of blood in the human body?

• To produce hormones

• To digest food

• To store energy

• To transport oxygen and nutrients

Which component of blood is responsible for carrying oxygen?

• Platelets

• Plasma

• White blood cells

• Red blood cells

What is the function of white blood cells?

• To provide energy

• To clot blood

• To fight infections

• To carry oxygen

Which part of the blood helps in clotting?

• Plasma

• Red blood cells

• Platelets

• White blood cells

What is the liquid component of blood called?

• Lymph

• Plasma

• Serum

• Hemoglobin