digestive system and enzymes Flashcards
1
Q
what is bile?
what are its 2 functions?
A
produced in liver, stored in gall bladder and released into small intestine
alkaline to neutralise hcl from stomach
emulsifies fat, so large surface area allows lipase to break lipids down faster
2
Q
what is the test for sugar?
A
benedicts solution
blue -> brick red
3
Q
what is the test for starch?
A
iodine
orange -> blue-black
4
Q
what is the test for proteins?
A
biuret solutions
blue -> purple
5
Q
what is the test for lipids?
A
sudan 3 stain solution
red layer forms at top
