Digestion

Question 1

What are the 2 types of digestion in humans?

Answer 1

Physical and chemical

Question 2

What is physical digestion?

Answer 2

To break down food into smaller pieces to increase the surface area of food for enzymes to act on

Question 3

Types of physical digestion in humans

Answer 3

1. Chewing by teeth
2. Churning by stomach
3. Peristalsis along the alimentary canal
4. Emulsification of lipids

Question 4

What is chemical digestion?

Answer 4

To hydrolyze complex and insoluble molecules into simple and soluble molecules by enzymes

Question 5

What are the three types of enzymes, their hydrolysis of biomolecules and their examples? (Digestion)

Answer 5

Carbohydrases; Polysaccharides/Disaccharides –> Monosaccharides; Amylase, Maltase, Sucrase
Lipase; Lipid –> Glycerol + fatty acids; pancreatic lipase
Protease; Protein –> peptides –> amino acids; Pepsin, Trypsin