Medical Quiz

Components of Blood Quiz


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

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

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

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

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


These blood cells are the protectors and help fight off disease.

A. Red blood cells

B. White blood cells

C. Plasma

D. Platelets


What percentage of plasma is made up of water?

A. 100%

B. 90%

C. 45%

D. 55%


Which component of blood is responsible for helping to stop bleeding?

A. platelets

B. red blood cells

C. white blood cells

D. plasma


Who am I?
I am the largest (in size) blood component and have a nucleus.

A. white blood cell

B. red blood cell

C. platelet

D. hemoglobin


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

A. Phagocytes

B. Plasma

C. Water

D. Lymphocytes

E. Hemoglobin


What does blood transport?

A. Nutrients

B. Oxygen 

C. Carbon Dioxide

D. All of the above


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

A. Epithelial cells

B. Red blood cells

C. White blood cells

D. Plasma

E. Platelets


What component of the blood is A, B, C and D

A. Red Blood Cells

B. White Blood Cells

C. Platelets

D. Plasma


Why does a red blood cell have a biconcave shape?

A. To decrease the surface area, therefore restricting the volume of oxygen lost from the cell

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

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

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


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?

A. Myoglobin

B. Hemolin

C. Haemoglobin

D. Chlorophyll


What does this picture show?

A. Plasma transfusion

B. Blood clotting

C. Cellular respiration

D. Phagocytosis


What happens when haemoglobin mixes with oxygen?

A. It is decomposed

B. It turns bright red

C. It produces energy

D. It makes antibodies


The fluid portion of blood that carries blood cells, glucose, proteins, fats, and wastes throughout the body.

A. red blood cells

B. white blood cells

C. plasma

D. platelets


What shape is associated to RBC?

A. Disc shape

B. Irregular shape

C. Square shape

D. Biconcave shape


Which of the following corresponds to the role of lymphocytes?

A. Carrying oxygen

B. Forming a clot

C. Transporting dissolved substances

D. Making antibodies against pathogens


What would be a consequence of a lack of white blood cells?

A. Tiredness

B. Getting sick often

C. Bleeding for a long time after a cut

D. Low blood pressure


What are the arrows pointing at?

A. Red Blood Cells

B. White Blood Cells

C. Platelets

D. Plasma


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

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

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

C. There is more space within the cell for mitochondria.

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

E. There is more space within the cell for hemoglobin.


What does the following picture show?

A. The role of RBC in oxygen transport

B. The role of platelets in blood clotting

C. The role of plasma for disease treatment

D. The role of WBC to defend our body


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?

A. Glucose

B. Sucrose

C. Glucagon

D. Lactose


What would be a consequence of a lack of red blood cells?

A. Tiredness

B. Getting sick often

C. Bleeding for a long time after a cut

D. Low blood pressure


Which of these would cause a reduction in blood plasma?

A. Dehydration

B. Iron deficiency


What would be a consequence of a lack of blood plasma?

A. Tiredness

B. Getting sick often

C. Bleeding for a long time after a cut

D. Low blood pressure


Which component of blood is responsible for carrying oxygen?

A. red blood cell

B. white blood cell

C. platelets

D. plasma




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