Blood Components and Functions

The given table shows some of the functions of different components of the blood. State the correct component for each function

• 1: Platelets, 2: White blood cells, 3: Red blood cells, 4: Plasma

• 1: Red blood cells, 2: White blood cells, 3: Platelets, 4: Plasma

• 1: Platelets, 2: Red blood cells, 3: White blood cells, 4: Plasma

• 1: Plasma, 2: White blood cells, 3: Red blood cells, 4: Platelets

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What is the scientific name given to red blood cells in humans?

• Phagocytes

• Haemocytes

• Lymphocytes

• Erythrocytes

• Oocytes

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Which of the following is not a major component of blood in humans?

• Epithelial cells

• Red blood cells

• White blood cells

• Plasma

• Platelets

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

• Targeting pathogens and fighting off infections

• Transporting carbon dioxide to the lungs to be excreted

• Binding to oxygen to transport it to respiring cells

• Helping the blood clot

Plasma in the blood transports the products of digestion to cells that require them. Which of the following is a product of digestion that is transported to human body cells for respiration?

• Glucose

• Sucrose

• Glucagon

• Lactose

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What is the main function of blood plasma?

• Targeting pathogens and fighting off infections

• Binding to oxygen and transporting it to cells to be used in respiration

• Transporting blood cells and other important substances around the body

• Helping the blood clot in the arteries

The given diagram demonstrates the average percentages of the main components of blood in a sample. What component is label A representing?

• Phagocytes

• Plasma

• Water

• Lymphocytes

• Hemoglobin

Red blood cells do not contain a nucleus. What is the advantage of this?

• The cell can form a convex shape to increase its surface area.

• There is more space within the cell for the genetic material.

• There is more space within the cell for mitochondria.

• The cell can divide more rapidly to make new cells.

• There is more space within the cell for hemoglobin.

Red blood cells contain a protein that has the ability to bind to oxygen and gives the cell its red color. What is this protein called?

• Myoglobin

• Hemolin

• Hemoglobin

• Chlorophyll

The diagram given shows multiple, normal red blood cells in a blood vessel

• Biconcave

• Circular

• Biconvex

• Convex