Digestive System Quiz Questions With Answers

26 Questions | Total Attempts: 21353

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Digestive System Quiz Questions With Answers

Are you curious about how human digestion works? Think you can pass this Digestive System Quiz? Digestion is a process by which the human body absorbs nutrition. It helps in the growth and development of the body. Do you know about the various process that entails the working of the digestive system in our body? Then, answer the multiple-choice ' Digestive System Quiz ' to test your knowledge and learn more along the way. Good Luck!


Questions and Answers
  • 1. 
    Where does digestion begin?
    • A. 

      In the stomach

    • B. 

      In your mouth

    • C. 

      In your large intestines

    • D. 

      In your small intestines

  • 2. 
    What are enzymes?
    • A. 

      Enzymes are tiny food particles that can not be digested.

    • B. 

      Enzymes are fruits and vegetables.

    • C. 

      Enzymes are chemicals that help break down food.

    • D. 

      Enzymes are breads and candy.

  • 3. 
    What does saliva play in digestion?
    • A. 

      Enzymes in saliva help to break down food.

    • B. 

      It coats your stomach with protective lining.

    • C. 

      It moves food through the intestine.

    • D. 

      Saliva does not help with digestion.

  • 4. 
    What mashes and cuts food in your mouth?
    • A. 

      Saliva mashes and cuts food in your mouth.

    • B. 

      Your teeth mashes and cuts food in your mouth.

    • C. 

      Your tongue mashes and cuts food in your mouth.

    • D. 

      Your lips mashes and cuts food in your mouth.

  • 5. 
    Where does most digestion in the small intestine take place?
    • A. 

      Most digestion in the small intestine takes place in the duodenum.

    • B. 

      Most digestion in the small intestine takes place in the pancreas.

    • C. 

      Most digestion in the small intestine takes place in the liver.

    • D. 

      Most digestion in the small intestine takes place in the heart.

  • 6. 
    What is the main role of the large intestine?
    • A. 

      The main role of the large intestine is to churn food around with enzymes.

    • B. 

      The main role of the large intestine is to break down solid food.

    • C. 

      The main role of the large intestine is to absorb water.

    • D. 

      The main role of the large intestine is to mash and cut foods.

  • 7. 
    What organs produce enzymes that help in digestion?
    • A. 

      The organs that produce enzymes that help in digestion are the pancreas and the liver.

    • B. 

      The organs that produce enzymes that help in digestion are the heart and the kidneys.

    • C. 

      The organs that produce enzymes that help in digestion are the eyes and the ears.

    • D. 

      The organs that produce enzymes that help in digestion are the nose and tongue.

  • 8. 
    What type of acid breaks down food in your stomach?
    • A. 

      The type of acid that breaks down food in your stomach is fruit acid.

    • B. 

      The type of acid that breaks down food in your stomach is hypodermic acid.

    • C. 

      The type of acid that breaks down food in your stomach is hydrochoric acid.

  • 9. 
    How long is the small intestine?
    • A. 

      The small intestine is four to seven yards.

    • B. 

      The small intestine is four to seven feet.

    • C. 

      The small intestine is four to seven inches.

    • D. 

      The small intestine is four to seven meters.

  • 10. 
    Food passes from the small intestine into what organ?    
    • A. 

      Food passes from the small intestine into large intestine.

    • B. 

      Food passes from the small intestine into gallbladder.

    • C. 

      Food passes from the small intestine into liver.

    • D. 

      Food passes from the small intestine into esophagus.

  • 11. 
    How long is the human digestive system?      
    • A. 

      The human digestive system is about equal to your body height.

    • B. 

      The human digestive system is about two times your body height

    • C. 

      The human digestive system is about as long as your arm.

    • D. 

      The human digestive system is about five times your body height.

  • 12. 
    Under normal circumstances, how long does it take for food to pass entirely through the digestive system of a healthy human?
    • A. 

      It take for food to pass entirely through the digestive system of a healthy human about 12 hours.

    • B. 

      It take for food to pass entirely through the digestive system of a healthy human about 21 hours.

    • C. 

      It take for food to pass entirely through the digestive system of a healthy human about two hours.

    • D. 

      It take for food to pass entirely through the digestive system of a healthy human about two days.

  • 13. 
    What is the baglike, muscular organ that mixes and chemically changes protein?  
    • A. 

      The baglike, muscular organ that mixes and chemically changes protein is the liver .

    • B. 

      The baglike, muscular organ that mixes and chemically changes protein is the small intestine.

    • C. 

      The baglike, muscular organ that mixes and chemically changes protein is the large intestine

    • D. 

      The baglike, muscular organ that mixes and chemically changes protein is the stomach.

  • 14. 
    _______ turns food into a new form: a form that cells can use.
    • A. 

      Grinding

    • B. 

      Physical change

    • C. 

      Mixing

    • D. 

      Chemical change

  • 15. 
    What is the process of changing food into a form usable by the cells of the body?
    • A. 

      The process of changing food into a form usable by the cells of the body is physical change .

    • B. 

      The process of changing food into a form usable by the cells of the body is digestion.

    • C. 

      The process of changing food into a form usable by the cells of the body is chewing.

    • D. 

      The process of changing food into a form usable by the cells of the body is circulation.

  • 16. 
    What is the career of people who plan the meals for individuals or groups of people?
    • A. 

      The career of people who plan the meals for individuals or groups of people is cook.

    • B. 

      The career of people who plan the meals for individuals or groups of people is scientist.

    • C. 

      The career of people who plan the meals for individuals or groups of people is dietitian.

    • D. 

      The career of people who plan the meals for individuals or groups of people is nutritionist.

  • 17. 
    What are chemicals that speed up the rate of chemical change?
    • A. 

      Chemicals that speed up the rate of chemical change are starches.

    • B. 

      Chemicals that speed up the rate of chemical change are fats.

    • C. 

      Chemicals that speed up the rate of chemical change are carbohydrates.

    • D. 

      Chemicals that speed up the rate of chemical change are enzymes.

  • 18. 
    What is the liquid formed in the mouth that contains an enzyme?    
    • A. 

      The liquid formed in the mouth that contains an enzyme is hydrochloric acid.

    • B. 

      The liquid formed in the mouth that contains an enzyme is saliva.

    • C. 

      The liquid formed in the mouth that contains an enzyme is saliva bile.

    • D. 

      The liquid formed in the mouth that contains an enzyme is saliva blood.

  • 19. 
    How long is an adult's small intestine?
    • A. 

      An adult's small intestine is 22 feet.

    • B. 

      An adult's small intestine is 30 inches.

    • C. 

      An adult's small intestine is 30 miles.

    • D. 

      An adult's small intestine is 17 feet.

  • 20. 
    The liver's role is to ___________________.
    • A. 

      Mash up food.

    • B. 

      Turn water into food.

    • C. 

      Help the stomach.

    • D. 

      Remove the harmful substances from the blood.

  • 21. 
    When they reach the stomach, mashed-up food particles mix with________________.
    • A. 

      Guava juice.

    • B. 

      Gastric juice.

    • C. 

      Mucus

    • D. 

      Bile.

  • 22. 
    Bile is made in the ______________________.
    • A. 

      Large intestine.

    • B. 

      Stomach.

    • C. 

      Liver.

    • D. 

      All of the above.

  • 23. 
    What does the digestive system do?
    • A. 

      The digestive system breaks down and handles food.

    • B. 

      The digestive system pumps blood throughout the body.

    • C. 

      The digestive system helps you breathe.

    • D. 

      The digestive system helps you arms and legs move.

  • 24. 
    Your food can spend up to _________________ in the small intestine.
    • A. 

      4 minutes

    • B. 

      4 mounths

    • C. 

      4 seconds

    • D. 

      4 hours

  • 25. 
    Which organs help with the absorption of nutrients?
    • A. 

      The organs that help with the absorption of nutrients are pancreas, liver, and gall bladder.

    • B. 

      The organs that help with the absorption of nutrients are liver, heart, and spleen.

    • C. 

      The organs that help with the absorption of nutrients are gall bladder, kidneys, and appendix

    • D. 

      The organs that help with the absorption of nutrients are kidneys, liver, and gall bladder.

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