nutrition in humans

Question 1

steps in nutrition in humans.

Answer 1

1. ingestion
2. digestion
3. absorption
4. assimilation
5. egestion

Question 2

enzymes etc. and what they do:

1. salivary amylase
2. hcl
3. mucus
4. pepsin
5. bile juice
6. trypsin
7. pancreatic amylase
8. lipase

Answer 2

1. salivary amylase- starch to a simpler form
2. hcl- makes medium acidic and kills germs
3. mucus- protects the inner lining of the stomach
4. pepsin- proteins to amino acids
5. bile juice- emulsification of fat and makes medium alkaline
6. trypsin- complex proteins to amino acids
7. pancreatic amylase- complex carbohydrates to glucose
8. lipase- fats to glycerol and fatty acids

Question 3

stored form of food in animals is known as?

Answer 3

glycogen

Question 4

how is the exit of food from the stomach to small intestine regulated?

Answer 4

sphincter muscle

Question 5

how is the exit of food from the body regulated?

Answer 5

anal sphincter muscle

Question 6

what is peristalsis / peristaltic movement?

Answer 6

the constant contraction and relaxation of muscles of alimentary canal.