7.1 Proteins Flashcards
What type of protein is used for storage?
Bean storage proteins
What type of protein is used for movement?
Muscle fibers
What type of protein is used for transport?
Channels and pumps
What type of protein is used for identification?
Cell surface proteins
What type of protein is used for defense?
Antibodies
What type of protein is used for chemical reactions?
Enzymes
What type of protein is used for structure?
Keratin and collagen
What type of protein is used for Communication?
Hormones and receptors
What functional groups are in the side chains of polar amino acids?
Hydroxyl, carbonyl, or sulfhydryl
What functional groups are in the side chains of nonpolar amino acids?
Methyl
What functional groups are in the side chains of negatively charged amino acids?
Carboxyl or phosphate
What functional groups are in the side chains of positively charged amino acids?
Amino
What is primary structure?
Amino acids connected by peptide bonds
What is secondary structure?
Sections of folding connected by hydrogen bonds, A-helix or B-pleated
What is tertiary structure?
The 3d structure of a polypeptide
What is quaternary structure?
Multiple polypeptide chains together
What do acidic and basic side chains do?
They attract to each either because of their positive charges
What do cysteine side chains do?
They form covalent disulfide bonds
What do hydrophobic side chains do?
They fold to the inside of the structure
What do hydrophilic side chains do?
They fold to the outside of the structure
