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Sixth Grade (Grade 6) Circulatory and Immune Systems Questions

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Grade 6 Circulatory and Immune Systems
A substance made by the body that helps white blood cells destroy disease germs is a(n)
  1. allergy.
  2. virus.
  3. antibody.
Grade 6 Circulatory and Immune Systems
Which system transports nutrients and gases to cells and tissues throughout the body?
  1. digestive
  2. circulatory
  3. reproductive
  4. muscular
Grade 6 Circulatory and Immune Systems
What are capillaries?
  1. big, blue blood vessels next to the heart
  2. blood vessels that lead blood away from the heart
  3. blood vessels so small that cells have to go through them single file
Grade 6 Circulatory and Immune Systems
Which component of blood fights bacteria and viruses?
  1. platelets
  2. red blood cells
  3. plasma
  4. white blood cells
Grade 6 Circulatory and Immune Systems
Oxygen and nutrients are delivered to other organ systems through which organ system?
  1. urinary
  2. circulatory
  3. digestive
  4. nervous
Grade 6 Circulatory and Immune Systems
Which body system performs a function similar to that of the vascular system of a plant?
  1. circulatory
  2. nervous
  3. excretory
  4. digestive
Grade 6 Circulatory and Immune Systems
What is the main function of the circulatory system?
  1. helps you to move
  2. moves blood through the body
  3. gets rid of body waste
  4. gets rid of invading viruses
Grade 6 Circulatory and Immune Systems
Which body system fights disease and controls the immune response?
  1. circulatory
  2. immune
  3. excretory
  4. endocrine
Grade 6 Circulatory and Immune Systems
Select the two statements that are true about capillaries.
  1. They are the small vessels that provide cells with oxygen and nutrients.
  2. They are the big vessels coming right from the heart.
  3. They only carry deoxygenated blood.
  4. They pick up the waste products cells must get rid of.
Grade 6 Circulatory and Immune Systems
From what does our immune system protect our body?
  1. cheese
  2. fat
  3. unknown substances
  4. sugar
Grade 6 Circulatory and Immune Systems
What are the three parts of the circulatory system?
  1. lungs, heart, and blood vessels
  2. heart, brain, and spinal cord
  3. heart, blood vessels, and lungs
  4. heart, blood, and blood vessels
Grade 6 Circulatory and Immune Systems
What is the main organ of the circulatory system?
  1. brain
  2. lungs
  3. veins
  4. heart
Grade 6 Circulatory and Immune Systems
The circulatory system deals with the brain.
  1. True
  2. False
Grade 6 Circulatory and Immune Systems
The                 is a muscle that pumps blood throughout the body.
  1. heart
  2. brain
  3. liver
  4. kidney
Grade 6 Circulatory and Immune Systems
What part of the body acts as a pump?
  1. stomach
  2. heart
  3. lungs
  4. brain
Grade 6 Circulatory and Immune Systems
Select the three statements that are true about white blood cells.
  1. They are much bigger than red blood cells.
  2. They seek out germs and other bad things that can hurt you.
  3. Your body has fewer of them when you are sick.
  4. You have a lot fewer of them than you do red blood cells.
  5. They are not really very useful at all.
Grade 6 Circulatory and Immune Systems
The liquid part of blood is
  1. plasma.
  2. water.
  3. cells.
  4. nutrients.
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