Understanding Blood Components and Functions

Blood is a suspension of cells in what pale yellow liquid?

• Serum

• Plasma

• Lymph

• Cytosol

What are the four components of blood?

• Plasma, serum, erythrocytes, leukocytes

• Plasma, red blood cells, white blood cells, platelets

• Plasma, lymph, erythrocytes, platelets

• Serum, red blood cells, white blood cells, lymph

What is the biological term for red blood cells?

• Leukocytes

• Thrombocytes

• Erythrocytes

• Lymphocytes

What is the function of erythrocytes?

• Defence against disease

• Transport of oxygen

• Blood clotting

• Regulation of body temperature

Which of the following is the most common type of white blood cell?

• Monocytes

• Lymphocytes

• Polymorphs

• Basophils

What is the role of polymorphs in defence against disease?

• Antibody production

• Phagocytosis

• Blood clotting

• Hormone secretion

What percentage of blood is made up of lymphocytes?

• 5%

• 15%

• 25%

• 35%

Which lab technique separates blood into its different components according to their density?

• Filtration

• Centrifugation

• Distillation

• Chromatography

What is another term for blood clotting?

• Coagulation

• Diffusion

• Osmosis

• Filtration

Which vitamin is needed for blood clotting and is given to babies at birth?

• Vitamin A

• Vitamin B12

• Vitamin C

• Vitamin K