Describe how the r group in each of the 20 differebt amino acids determines each amino acid's characteristics

The polarity and acid/base character of each R group is the main factor determining the characteristics of an amino acid.

There are four types of R groups:

•nonpolar, e.g., CH₃ in alanine

•polar, e.g., CH₂OH in serine

•acidic. e.g., CH₂COOH in aspartic acid

•basic, e.g., CH₂(CH₂)₃NH₂ in lysine

The R group determines whether an amino acid is acidic, basic, or neutral.

However, the nature of the R groups is the major factor that determines the 2° and 3° structures of polypeptides and proteins.

it should be p1 v1 = p2 v2

answer: e.   sour taste

explanation: acids are those substances which dissociates in water to give ions. as they dissociate to give ions, they act as electrolytes and thus are electrically conductive. acids are sour in taste. example: hcl

bases are those substances which dissociates in water to give ions or accepts ions. as they dissociate to give ions, they act as electrolytes and thus are electrically conductive. bases are bitter in taste. bases are slippery in nature.