Understanding Blood
A worksheet for Grade 7 Science students to learn about the components and functions of human blood.
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Understanding Blood
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Read each question carefully and answer to the best of your ability.
1. Which component of blood is responsible for carrying oxygen?
White blood cells
Red blood cells
Plasma
Platelets
2. What is the main function of white blood cells?
Clotting blood
Fighting infection
Carrying nutrients
Transporting oxygen
3. The liquid part of blood is called .
4. are tiny cell fragments that help blood to clot.
5. Red blood cells contain a protein called , which binds to oxygen.
6. All blood cells are produced in the bone marrow.
True
False
7. Arteries carry deoxygenated blood away from the heart.
True
False
8. Briefly explain the difference between red blood cells and white blood cells.
9. Describe the role of platelets in the human body.
Use the words below to complete the sentences.
10. is mostly water and carries blood cells, proteins, and other substances.
11. White blood cells produce to fight off pathogens.
12. Blood transports from digested food to all body cells.