Monomer of proteins

• carboxylic acid

• inorganic acid

• amino acid

Numbers of amino acids used to build protein in organisms

• 12

• 20

• 22

Amino acids differ in side chain groups or _____.

• L groups

• O groups

• R groups

Amino acids are linked by

• ester bonds

• peptide bonds

• thiosulfide bonds

Proteins become twisted due to

• hydrogen bonds

• ionic bonds

• covalent bonds

Which one is protein?

• enzymes

• sugar

• salt

Polymers of nucleotides

• Carboxylic acids

• Amino acids

• Nucleic acids

Types of nucleic acids

• 1

• 2

• 3

Two types of nucleic acids

• DNA

• RNA

• CNA

DNA stores

• genetic information

• energy

• water