Understanding Blood and Its Functions

What is the main function of red blood cells?

• Fight infections

• Transport oxygen

• Form clots

• Regulate blood pressure

What is the protein in red blood cells that binds oxygen?

• Fibrin

• Haemoglobin

• Albumin

• Antibody

Which part of the heart receives deoxygenated blood?

• Left atrium

• Right atrium

• Left ventricle

• Right ventricle

What is the name of the process by which blood cells are formed?

• Haematopoiesis

• Erythropoiesis

• Cytosis

• Haemostasis

Which blood component is responsible for clotting?

• Erythrocytes

• Plasma

• Platelets

• Leukocytes

What does hypertension refer to?

• Low blood sugar

• High blood pressure

• High blood oxygen

• Low blood cell count

Which type of white blood cell helps fight infections?

• Neutrophils

• Erythrocytes

• Thrombocytes

• Platelets

What is the normal range of systolic blood pressure in adults (in mmHg)?

• 60-80

• 80-100

• 100-120

• 120-140

Which organ is primarily responsible for filtering and purifying blood?

• Liver

• Heart

• Kidneys

• Lungs

What does an electrocardiogram (ECG) primarily measure?

• Blood pressure

• Heart electrical activity

• Oxygen levels in the blood

• Body temperature