M Prep Blog
MCAT Question of the Day
All individual amino acids are soluble in water; however, not all peptides are soluble. Which of the following choices best explains this?
The R groups of the amino acid residues in the peptide are charged at physiological pHs
The R groups on all amino acids can interact noncovalently with water at pH = 7.4 (the pH of a normal, healthy body)
All peptides are insoluble in water
Individual amino acids are zwitterions at physiological pHs
Protein Structure and Function
Suggest a tag
Questions? We're here to help!
About the MCAT
Lee Simonov Services © 2015