Blood and Its Components - Multiple Choice Questions

What type of tissue is blood classified as?

• Epithelial tissue

• Connective tissue

• Muscle tissue

• Nervous tissue

What percentage of blood cells are red blood cells?

• 90%

• 95%

• 99%

• 80%

What is the primary function of red blood cells?

• Defend against bacteria

• Transport respiratory gases

• Control bleeding

• Produce antibodies

Which molecule in red blood cells binds to oxygen?

• Myoglobin

• Haemoglobin

• Thromboplastin

• Collagen

What is the straw-coloured liquid in which blood cells are suspended?

• Plasma

• Serum

• Water

• Lymph

Which of the following is NOT a component of plasma?

• Proteins

• Glucose

• Platelets

• Electrolytes

What is the primary role of white blood cells?

• Transport oxygen

• Defend against infection

• Form blood clots

What type of cell do all blood cells originate from?

• Stem cell

• Erythrocyte

• Lymphocyte

• Platelet

What are platelets also known as?

• Leucocytes

• Thrombocytes

• Erythrocytes

• Plasma cells

What is the lifespan of most white blood cells?

• A. A few hours to a few days

• B. Several weeks

• C. Several months

• D. A few years