Blood Composition and Functions
Biology ⇒ Human Biology
Blood Composition and Functions starts at 7 and continues till grade 12.
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See sample questions for grade 9
A patient has a low platelet count. What problem might they experience?
Describe how blood helps in the healing of wounds.
Describe one way in which blood helps regulate body temperature.
Describe the role of blood in maintaining pH balance in the body.
Explain the role of antibodies in blood.
A patient has a low platelet count. What problem might they experience?
Describe how blood helps in the healing of wounds.
Explain why a person with severe blood loss may go into shock.
What is the average lifespan of a red blood cell in the human body? (1) 10 days (2) 120 days (3) 1 year (4) 5 days
What percentage of blood is made up of plasma? (1) About 10% (2) About 25% (3) About 55% (4) About 90%
Which blood component helps to stop bleeding by forming clots? (1) Plasma (2) Red blood cells (3) Platelets (4) White blood cells
Which component of blood is primarily responsible for transporting oxygen? (1) Plasma (2) Red blood cells (3) White blood cells (4) Platelets
Fill in the blank: The iron-containing pigment in red blood cells is called __________.
Fill in the blank: The main function of platelets is to help in __________.
Fill in the blank: The main function of white blood cells is to __________ the body against disease.
Fill in the blank: The process by which white blood cells engulf and digest bacteria is called __________.
True or False: All blood cells are produced in the bone marrow.
True or False: Blood helps transport nutrients from the digestive system to the rest of the body.
True or False: Blood is responsible for removing waste products from body cells.
True or False: Blood transports hormones from glands to target organs.
