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 8
A patient has a low platelet count. What problem might they experience?
Describe one way in which blood helps maintain homeostasis in the body.
Describe the role of blood in defending the body against disease.
Describe what happens when a blood vessel is cut and how blood prevents excessive bleeding.
Explain how blood helps in the removal of carbon dioxide from the body.
Explain why a person with low hemoglobin may feel tired or weak.
Explain why blood is considered a connective tissue.
A patient has a low platelet count. What problem might they experience?
What is the lifespan of a typical red blood cell in the human body? (1) 1 day (2) 10 days (3) 120 days (4) 365 days
Which blood cells are most numerous in human blood? (1) Red blood cells (2) White blood cells (3) Platelets (4) Plasma cells
Which component of blood is mainly responsible for fighting infections? (1) Red blood cells (2) White blood cells (3) Platelets (4) Plasma
Which component of blood is responsible for carrying oxygen? (1) Plasma (2) Red blood cells (3) White blood cells (4) Platelets
Fill in the blank: Platelets are also known as __________.
Fill in the blank: The main function of red blood cells is to transport __________ from the lungs to the body tissues.
Fill in the blank: The process by which white blood cells engulf and destroy bacteria is called __________.
Fill in the blank: The process of blood cell formation in the bone marrow is called __________.
True or False: All blood cells are produced in the bone marrow.
True or False: Blood helps regulate body temperature.
True or False: Blood helps transport nutrients from the digestive system to the rest of the body.
True or False: Blood is made up of both cells and liquid.
