Components of Blood

Multiple Choice

Blood is an example of a special connective tissue. What is the main function of blood?

• To bind different tissues of the body together.

• To regulate the contractions of the heart and maintain a regular cardiac cycle.

• To support and move the bones of the body.

• To transmit electrical impulses from receptors to effectors.

• to transport substances, including products of digestion and waste materials, around the body.

Multiple Choice

What is the main function of blood plasma?

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

• Helping the blood clot in the arteries.

• Targeting pathogens and fighting off infections.

• Transporting blood cells and other important substances around the body.

Multiple Choice

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

• Erythrocytes

• Thrombocytes

• Plasma

• White Blood Cells

Multiple Choice

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

• Epithelial cells

• red blood cells

• white blood cells

• plasma

• platelets

Multiple Choice

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

• Phagocytes

• hemocytes

• lymphocytes

• erythrocytes

• oocytes

Multiple Choice

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

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

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

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

• There is more space within the cell for hemoglobin.

• There is more space within the cell for mitochondria.

Multiple Choice

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

• Hemoglobin

• Red Blood Cells

• Thrombin

Multiple Choice

The diagram given shows multiple normal red blood cells in a blood vessel. Why does a red blood cell have this shape?

• To increase the available surface area so more oxygen can diffuse in and out of the cell.

• To provide a large surface area for the active transport of oxygen in and out of the cell.

• To decrease the surface area and therefore restrict the volume of oxygen lost from the cell.

• To increase the volume of the cell so more genetic material can be carried around the body.

Multiple Choice

What is the primary function of platelets?

• Transporting blood cells and other substances around the body.

• Helping the blood to clot to prevent bleeding.

• Binding to oxygen to transport it to respiring cells.

• Targeting pathogens and fighting off infections.