Blood Composition and Function Quiz

What is the liquid component of blood called, and what percentage of blood does it make up?

• Cytoplasm - 40%

• Lymph - 60%

• Serum - 45%

• Plasma - 55%

How are red blood cells adapted to their function of carrying oxygen?

• They have a rough surface to prevent oxygen absorption

• They have a nucleus to accommodate more haemoglobin

• They are biconcave to increase surface area for oxygen absorption

• They are spherical to decrease surface area for oxygen absorption

What is the purpose of blood clotting?

• To prevent excessive bleeding after injury and infection

• To transport oxygen to the body's cells

• To carry nutrients and waste products

• To regulate body temperature

Name a disorder related to too few red blood cells and explain its symptoms.

• Anaemia - fatigue and weakness

• Haemophilia - prolonged bleeding

• Thrombocytopenia - impaired blood clotting

• Leukaemia - fatigue and weakness

What is the Rh factor in blood, and how does it influence blood typing?

• It is a type of platelet. Rh-positive or Rh-negative refers to the presence or absence of this factor

• It is a type of plasma. Rh-positive or Rh-negative refers to the presence or absence of this factor

• It is a protein on the surface of red blood cells. Rh-positive or Rh-negative refers to the presence or absence of this factor

• It is a type of white blood cell. Rh-positive or Rh-negative refers to the presence or absence of this factor

Explain the concept of blood transfusions and why matching blood types is crucial.

• Blood transfusions involve transferring blood from a donor to a recipient, and matching blood types is crucial to prevent blood clotting

• Blood transfusions involve transferring blood from a recipient to a donor, and matching blood types is crucial to prevent blood clotting

• Blood transfusions involve transferring plasma from a donor to a recipient, and matching blood types is crucial to prevent blood clotting

• Blood transfusions involve transferring platelets from a donor to a recipient, and matching blood types is crucial to prevent blood clotting

Name the three types of blood cells found in human blood.

• Red blood cells, plasma cells, and lymphocytes

• Red blood cells, plasma cells, and platelets

• Red blood cells, white blood cells, and platelets

• Red blood cells, white blood cells, and lymphocytes

What is the function of white blood cells in the human body?

• To carry oxygen to the body's cells

• To prevent excessive bleeding after injury

• To fight against infections and diseases

• To regulate body temperature

What is the role of platelets in the blood?

• To carry oxygen to the body's cells

• To help in the clotting of blood

• To fight against infections and diseases

• To regulate body temperature

What is the condition called when there is an excessive number of white blood cells in the body?

• Anaemia

• Leukemia

• Thrombocytopenia

• Haemophilia