Lab Quiz #6 vocab Flashcards
what is pepsin?
a proteolytic enzyme secreted in an inactive form (pepsinogen) by the gastric glands.
what does pancreatic lipase digest?
triglycerides (fats) into monoglycerides and free fatty acids
what is emulsification?
the separation of large aggregates of fat into smaller droplets
what is emulsification the primary function of?
bile salts
what will salivary amylase break polysacharides down into?
the disacharide maltose
what is Lugol’s iodine?
a standard test for starch and will turn dark blue in the presence of starch
what is Benedict’s solution?
a standard test for sugar and if a colored precipitate forms after boiling this is a positive test for sugar
what do proteins start out as?
pepsin
where do proteins start?
stomach
what is the pH of pepsin in the stomach?
2.0
what is pepsin converted into?
polypeptide
what is the polypeptide that pepsin is converted into?
trypsin
where does trypsin start?
duodenum
what is the pH of trypsin in the duodenum?
7.0
what are the polypeptides converted into?
dipeptides
what dipeptide is trypsin converted into?
peptidase (brush border enzyme)
what are dipeptides converted into?
amino acids
what do carbohydrates start as?
polysacharides
where do polysacharides start?
in mouth
what is the pH of polysacharides in the mouth?
7.0
what is the pH of salavary amylase in mouth?
7.0
what are polysacharides converted into?
disacharides
what converts polysacharides into disacharides?
salavary and pancreatic amylase
where is salavary amylase?
the mouth
where is pancreatic amylase?
in the duodenum
what is the pH of pancreatic amylase?
7.0
what are disacharides converted into?
monosacharides
what converts disacharides into monosacharides?
bb E2 (maltase)
what does fats start as?
triglycerides
what are triglycerides converted into?
monoglycerides + 2 fatty acids
what converts tryglicerides into monoglycerides?
pancreatic lipase (bile salt)
where is pancreatic lipase located?
in the duodenum
what is the pH of pancreatic lipase?
7.0
