What is an emulsfier? Which enzyme digests proteins? Which enzymes digests lipids?

Question

Which enzyme digests carbohydrates? What pH is best for protein digestion?

Thank you

Answer 1

An emulsifier helps the digestion of fats by making them 'dissolve' in a watery solution (chyme). Bile from the gallbladder is an emulsifier.

Proteases and peptidases digest proteins.

Lipases digest fats.

A low pH in the stomach helps to initiate protein digestion.

A variety of enzymes digest carbohydrates, e.g. maltases, dissacharidases, etc..

Answer 2

Emulsifier ... this comes from the word emulsification. This process is used in order to turn the lipids (which are hard to digest and absorb because they are fat solube) into water-soluble substances in order to make them easily absorbed and digested.

Proteins need these enzymes for digestion:

1) pepsin (from stomach), trypsin & chymotrypsin (from pancreas) = these will break the protein down into peptides

2) carboxypeptidase (from pancreas), aminopeptidase (from microvilli) = these will break the peptides into individual amino acids.

Enzymes for lipids:

1) Lipase (from pancreas), bile (secreted by the gallbladder)

Enzymes for carbohydrates:

1) Salivary & pancreatic amylase which turn the carbohydrates from polysaccharides into disaccharides. Then specific microvillus enzymes break the disaccharides into monosaccarides.

The pH best for protein digestion, hmm I think there is two

The enzymes that come from the stomach need a pH of 2.0 while the enzymes that come from the pancreas need a pH of 7.0 in order to be activated.

Answer 3

amylase digests starch, lipase digests fat, and peptidases breaks peptide bonds, so yeah its protease