Amino acids and their Structure

What are the building blocks of proteins?

• amino acid
• fatty acid
• nucleotide
• lipid

Which structure changes in the 20 different amino acids?

• #1
• #2
• #3
• #4

Amino acids all have the same general structure except for the:

• Amino Group
• Carboxyl Group
• 'R' Group
• Carbonyl Group

If a methyl group (-CH₃), which does not like water, were at the 'R', the amino acid would likely be:

• Hydrophobic

• Hydrophilic

• Ionic

• Acidic

How many natural amino acids are found

• 10

• 9

• 20

• 21