Pre assessment - Blood and its components

What is the primary function of red blood cells (erythrocytes)?

• Fight infections

• Transport oxygen

• Produce antibodies

• Regulate blood clotting

Which component of blood is responsible for clotting and preventing excessive bleeding?

• Red blood cells

• White blood cells

• Platelets

• Plasma

What is the liquid component of blood that carries nutrients, hormones, and waste products?

• Hemoglobin

• Plasma

• Serum

• Lymph

What is the role of white blood cells (leukocytes) in the immune system?

• Transport oxygen

• Fight infections

• Carry nutrients

• Aid in blood clotting

Which blood cell type plays a crucial role in defending the body against pathogens and infections?

• Red blood cells

• Platelets

• Neutrophils

• Eosinophils