How do carbohydrates, fats and proteins get digested in human beings?
Download our app for free and get startedPlay store
  1. Carbohydrates: The digestion of carbohydrates begins in the mouth. The human saliva contains an enzyme called salivary amylase which digests the starch present in the food into maltose sugar. The slightly digested carbohydrates when reaches the small intestine, pancreatic amylase present in the pancreatic juice breaks down the starch. The intestinal juice of the small intestine completes the digestion of carbohydrates and finally coverts it into glucose.
  2. Fats: The process of digestion of fats begins in the stomach. The glands of stomach secrete a small amount of gastric lipase that breaks down the fats present in the food. From the stomach the partially digested food goes into small intestine where the pancreatic lipase breaks down the emulsified fats. The walls of small intestine secrete intestinal juice which converts the fats into fatty acids and glycerol.
  3. Proteins: The digestion of proteins begins in the stomach. The glands of the stomach secrete gastric juice which contains an enzyme called pepsin. Pepsin converts the proteins into peptones. Pancreatic juice contains trypsin which digests the proteins into peptides and the intestinal juice completes the process of digestion of proteins thus converting it into amino acids.
art

Download our app
and get started for free

Experience the future of education. Simply download our apps or reach out to us for more information. Let's shape the future of learning together!No signup needed.*

Similar Questions

  • 1
    Distinguish between photosynthesis and respiration.
    View Solution
  • 2
    Describe the flow of blood through the heart of human beings.
    View Solution
  • 3
    What are the methods used by plants to get rid of their waste products?
    View Solution
  • 4
    With a schematic diagram, explain the overall process of respiration in animals.
    View Solution
  • 5
    If a person holds his breath after expiration for about 25sec, would there be occurrence of any exchange of respiratory gases in the lungs during this period? Explain.
    View Solution
  • 6
    Explain the process of breathing in man.
    View Solution
  • 7
    X is a wild animal which eats only the flesh of other animals whereas Y is a domestic animal which feeds mainly on green grass.
    1. What are animals like X known as?
    2. What are animals Y known as?
    3. Which animal, X or Y, has a longer small intestine? Why?
    4. Name one animal which is like X.
    5. Name one animal which is like Y.
    View Solution
  • 8
    Write the events that occur during the process of breathing in humans.
    View Solution
  • 9
    Breathing cycle is an essential process for the exchange of gases’. Justify this statement.
    View Solution
  • 10
    Explain how deoxygenated blood travel from body to lung for purification. Draw well-labeled diagram in support of your answer.
    View Solution