Proteins 2

Question 1

What is protein digestion?

Answer 1

Chewing, peristalsis. Physical and chemical digestion. Food in stomach: HCl and Pepsin. Pancreatic and intestinal proenzymes. Proenzymes activated by enteropeptidase

Question 2

Protein metabolism

Answer 2

Peptides broken down to amino acids in enterocytes. Amino acids transported to liver via hepatic portal vein

Question 3

Amino acid pool

Answer 3

Four possible fates for an amino acid when it joins pool:
1. Used to make/form dispensable amino acids - transamination
2. Used to make new proteins - body protein synthesis
3. Used to make other compounds - biosynthesis
4. Used for energy - catabolism and oxidation

Question 4

What is the vegetarian diet?

Answer 4

A person who does not eat meat or fish but eats eggs and dairy. No beef, lamb, pork, chicken, fish, shellfish

Question 5

What is the vegan diet?

Answer 5

A person who does not eat any animal foods or foods with animal products in them; may also avoid honey
May also restrict/avoid use of any animal product e.g. leather shoes