digestion biochem

Question 1

referred to as the digestion of the naturally occurring foodstuff into absorbable forms

Answer 1

digestion

Question 2

chemical breakdown of food (mouth)

chewing or mastication

Answer 2

mechanical digestion

Question 3

chemical breakdown of food (mouth)

hydrolysis of starch by salivary amylase

Answer 3

chemical digestion

Question 4

colorless, slightly viscid opalescent fluid which is a mixture of secretions of the three pais of salivary glands

Answer 4

saliva

Question 5

factors influencing the secretion of saliva

Answer 5

1. psychic
2. chemical
3. mechanical

sight, smell and taste of food

Question 6

aka ptyalin

Answer 6

salivary amylase

Question 7

chemical breakdown of food (stomach)

mainly concerned with the digestion of proteins through the action of the enzyme pepsin and HCl

Answer 7

gastric digestion

Question 8

initiates protein digestion producing proteoses, peptones and polypeptides

Answer 8

pepsin

Question 9

3 phases in gastric digestion

Answer 9

1. psychic phase
2. gastric phase
3. intestinal phase

Question 9

includes all processes by which noxious substances are rendered less harmful or more easily excreted

Answer 9

detoxification

Question 10

enzymes in intestinal juice

Answer 10

1. carbohydrates
2. peptidases
3. nucleotidases
4. nucleosidases

Question 11

combined secretion of the intestinal gland at different portions

Answer 11

intestinal juice

Question 12

secreted by the acinar cells of the pancreas

Answer 12

pancreatic juice

Question 13

regulation of pancreatic secretion

Answer 13

1. vagal stimulation
2. hormonal stimulation

Question 14

enzymes in pancreatic juice

Answer 14

1. trypsin
2. chymotrypsin
3. carboxypeptidase
4. pancreatic amylase
5. pancreatic lipase
6. nucleodepolymerase