Which enzymes help in digestion?

By: Prof. Dr. Fazal Rehman Shamil | Last updated: February 3, 2024

Question: Which enzymes help in digestion?

ANSWER: There are several enzymes play important roles in the process of digestion.

  • Amylase: This enzyme is involved in the digestion of carbohydrates.
  • Amylase is produced in the salivary glands (salivary amylase) and the pancreas (pancreatic amylase).
  • Proteases: Proteases are a group of enzymes that break down proteins into smaller peptides and amino acids.
  • Examples include
  • pepsin
  • trypsin
  • chymotrypsin
  • peptidases
  • Lipases: Lipases are enzymes responsible for the digestion of fats (lipids). They break down triglycerides into fatty acids and glycerol.
  • Nucleases: Nucleases are enzymes that break down nucleic acids (DNA and RNA) into nucleotides.
  • They are produced in the pancreas and small intestine, assisting in the digestion of dietary nucleic acids.
  • Lactase: Lactase is an enzyme that breaks down lactose, a sugar found in milk and dairy products, into glucose and galactose.
  • It is produced in the small intestine and is necessary for individuals to digest lactose properly.

 

EnzymeDescriptionSubstrateFunction
AmylaseBreaks down carbohydrates into smaller sugar moleculesStarch, glycogenDigestion of complex carbohydrates into simpler sugars (maltose, glucose)
ProteasesBreak down proteins into smaller peptides and amino acidsProteinsProtein digestion, breaking peptide bonds to release individual amino acids
LipasesDigests fats (lipids) into fatty acids and glycerolTriglyceridesHydrolysis of triglycerides to release fatty acids and glycerol
NucleasesBreaks down nucleic acids (DNA and RNA)DNA, RNADigestion of dietary nucleic acids, hydrolyzing them into nucleotides
MaltaseDigests maltose (disaccharide)MaltoseHydrolysis of maltose into two glucose molecules
LactaseDigests lactose (milk sugar)LactoseBreakdown of lactose into glucose and galactose
SucraseDigests sucrose (table sugar)SucroseCleavage of sucrose into glucose and fructose
PeptidasesFurther breaks down peptides into amino acidsPeptidesComplete digestion of proteins by breaking down peptides into individual amino acids
TrypsinBreaks peptide bonds on the carboxyl side of specific amino acidsPeptidesProtein digestion, cleaving peptides into smaller fragments
ChymotrypsinBreaks peptide bonds on the carboxyl side of hydrophobic amino acidsPeptidesProtein digestion, cleaving peptides into smaller fragments
Pancreatic amylaseDigests carbohydrates, similar to salivary amylaseStarch, glycogenFurther digestion of carbohydrates into simpler sugars in the small intestine

Important Questions about Enzymes

  1. Enzymes MCQs
  2. Inhibition in enzymes
  3. Which enzyme digests starch?
  4. Which enzyme digests protein?
  5. which enzyme is present in saliva?
  6. Which enzyme is not present in succus entericus?
  7. Which enzyme breaks down protein in the stomach?
  8. Which enzyme converts fibrinogen to fibrin?
  9. Which enzyme converts glucose into alcohol?
  10. Which enzyme digests fat?
  11. Which enzyme digests milk protein?
  12. Which enzyme is used in PCR?
  13. Which enzyme unzips the DNA double helix?
  14. Which liver enzyme increases with alcohol?
  15. Which enzyme cuts DNA?
  16. Which enzyme catalyzes the first step of glycolysis?
  17. Which enzyme binds DNA fragments together?
  18. Which enzyme transcribes DNA into RNA?
  19. which enzyme adds new nucleotides?
  20. Which enzyme digests cellulose?
  21. Which enzyme separates the two strands of DNA?
  22. Which enzyme converts carbohydrates into glucose?
  23. Which enzyme removes RNA primer?
  24. Which enzymes help in digestion?
  25. Which enzyme works best in acidic conditions?
  26. Which enzyme synthesizes tRNA?
  27. Which enzyme secreted by pancreas?
  28. Which enzyme converts maltose into glucose?
  29. Which vitamins work as coenzyme?