Q.1
Which of the following, about capillaries, is NOT true?
  • Substance exchange in cells and blood takes place here
  • They are too small to see without a microscope
  • They connect arteries to veins
  • They have thick walls
Q.2
Which of the following is not part of the circulatory system?
  • Arteries
  • Capillaries
  • Lungs
  • Veins
Q.3
Which of the following is not a function of the arteries?
  • To carry blood away from the heart
  • To carry blood into the heart
  • To supply food to the cells
  • To supply oxygen to the cells
Q.4
Which of the following is not a component of blood?
  • Plasma
  • Plates
  • Red blood cells
  • White blood cells
Q.5
Which of the following statements about arteries is NOT true?
  • Substances can pass through their walls
  • They carry blood away from the heart
  • They have a thick wall containing muscle
  • They have no valves
Q.6
The veins from the body enter the heart with .......
  • deoxygenated blood
  • food
  • oxygen
  • oxygenated blood
Q.7
Which of the following is not true about the ventricles of the heart?
  • They are the lower chambers of the heart
  • They are the upper chambers of the heart
  • They have more muscle than the atria
  • They pump blood
Q.8
Which of the following, about veins, is NOT true?
  • Substances cannot pass through their walls
  • They carry blood to the heart
  • They have no valves
  • They have thin walls
Q.9
The main organ in the circulatory system is the .......
  • brain
  • heart
  • liver
  • lungs
Q.10
Which of the following is not a function of the veins?
  • To carry blood away from the heart
  • To carry blood into the heart
  • To carry carbon dioxide away from the cells
  • To carry waste away from the cells
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