Quiz  /  Circulatory system Class 6 MCQ Questions With Answers

  • 1. 
    Which system allows blood to circulate throughout the body to transport oxygen and nutrients to all the cells and tissues?

  • Nervous
  • Respiratory
  • Circulatory

  • 2. 
    What is the main organ of the circulatory system?

  • small intestine
  • bone
  • lungs
  • heart

  • 3. 
    What is the circulatory system made up of?

  • Lungs, blood, blood vessels
  • Liver, kidneys, and stomach
  • Heart, Blood Vessels, and Blood

  • 4. 
    The job of the heart is to . . .

  • pump blood around the body.
  • send food to the small intestines.
  • break down food.
  • give energy to the body.

  • 5. 
    Which best explains how does the circulatory system helps the endocrine system

  • The circulatory system helps circulate the hormones that are made in the endocrine glands.
  • The circulatory system only circulates oxygen throughout the body.
  • The circulatory system circulates nutrients from digested food.

  • 6. 
    The cells in the blood that help fight germs like bacteria and viruses

  • red blood cells
  • platelets
  • white blood cells

  • 7. 
    These cells, in the blood, carry oxygen and give the blood its color.

  • white blood cells
  • plasma
  • platelets
  • red blood cells
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