Digestion Flashcards
1
Q
What are the 2 types of digestion in humans?
A
Physical and chemical
2
Q
What is physical digestion?
A
To break down food into smaller pieces to increase the surface area of food for enzymes to act on
3
Q
Types of physical digestion in humans
A
- Chewing by teeth
- Churning by stomach
- Peristalsis along the alimentary canal
- Emulsification of lipids
4
Q
What is chemical digestion?
A
To hydrolyze complex and insoluble molecules into simple and soluble molecules by enzymes
5
Q
What are the three types of enzymes, their hydrolysis of biomolecules and their examples? (Digestion)
A
Carbohydrases; Polysaccharides/Disaccharides –> Monosaccharides; Amylase, Maltase, Sucrase
Lipase; Lipid –> Glycerol + fatty acids; pancreatic lipase
Protease; Protein –> peptides –> amino acids; Pepsin, Trypsin
