CHEM 403L- Expt. 1 (Post-lab)

It is the pH at which a protein is LEAST soluble

• 7.6

• 6.6

• 5.6

• 4.6

Which amino acid is destroyed during acid hydrolysis of casein?

• alanine

• arginine

• tryptophan

• glycine

Which amino acid is destroyed during alkaline hydrolysis of casein?

• alanine

• arginine

• tryptophan

• glycine

What acid was used to lower the pH of milk?

• 5% acetic acid

• 10% acetic acid

• 4 M sulfuric acid

• 8 N sulfuric acid

What is the condition used in autoclaving the casein in acid/base hydrolysis?