Lab Quiz #6 vocab

Question 1

what is pepsin?

Answer 1

a proteolytic enzyme secreted in an inactive form (pepsinogen) by the gastric glands.

Question 2

what does pancreatic lipase digest?

Answer 2

triglycerides (fats) into monoglycerides and free fatty acids

Question 3

what is emulsification?

Answer 3

the separation of large aggregates of fat into smaller droplets

Question 4

what is emulsification the primary function of?

Answer 4

bile salts

Question 5

what will salivary amylase break polysacharides down into?

Answer 5

the disacharide maltose

Question 6

what is Lugol’s iodine?

Answer 6

a standard test for starch and will turn dark blue in the presence of starch

Question 7

what is Benedict’s solution?

Answer 7

a standard test for sugar and if a colored precipitate forms after boiling this is a positive test for sugar

Question 8

what do proteins start out as?

Answer 8

pepsin

Question 9

where do proteins start?

Answer 9

stomach

Question 10

what is the pH of pepsin in the stomach?

Answer 10

2.0

Question 11

what is pepsin converted into?

Answer 11

polypeptide

Question 12

what is the polypeptide that pepsin is converted into?

Answer 12

trypsin

Question 13

where does trypsin start?

Answer 13

duodenum

Question 14

what is the pH of trypsin in the duodenum?

Answer 14

7.0

Question 15

what are the polypeptides converted into?

Answer 15

dipeptides

Question 16

what dipeptide is trypsin converted into?

Answer 16

peptidase (brush border enzyme)

Question 17

what are dipeptides converted into?

Answer 17

amino acids

Question 18

what do carbohydrates start as?

Answer 18

polysacharides

Question 19

where do polysacharides start?

Answer 19

in mouth

Question 20

what is the pH of polysacharides in the mouth?

Answer 20

7.0

Question 21

what is the pH of salavary amylase in mouth?

Answer 21

7.0

Question 22

what are polysacharides converted into?

Answer 22

disacharides

Question 23

what converts polysacharides into disacharides?

Answer 23

salavary and pancreatic amylase

Question 24

where is salavary amylase?

Answer 24

the mouth

Question 25

where is pancreatic amylase?

Answer 25

in the duodenum

Question 26

what is the pH of pancreatic amylase?

Answer 26

7.0

Question 27

what are disacharides converted into?

Answer 27

monosacharides

Question 28

what converts disacharides into monosacharides?

Answer 28

bb E2 (maltase)

Question 29

what does fats start as?

Answer 29

triglycerides

Question 30

what are triglycerides converted into?

Answer 30

monoglycerides + 2 fatty acids

Question 31

what converts tryglicerides into monoglycerides?

Answer 31

pancreatic lipase (bile salt)

Question 32

where is pancreatic lipase located?

Answer 32

in the duodenum

Question 33

what is the pH of pancreatic lipase?

Answer 33

7.0