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bio review ch 3 SCC

proteins

QuestionAnswer
how many amino acids are there? 20
what is the general structure of amino acids? central carbon
what are the four side groups of an amino acid? hydrogen (H), amino group (NH2), carboxyl group (COOH), and an R group
what are the categories of R groups on amino acids? non polar side chains, polar side chains, and electrically charged side chains
define polymerization the process of linking monomers together
define condensation/dehydration reactions reactions linking monomers together by losing a water molecule
define hydrolysis reactions water is added to break down polymers into monomers.
what type of bond is between amino acids? peptide bonds
what are the characteristics of the peptide back bone? side chains stick out making it easy to interact with itself, has direction and look differently (N to C), flexible
what are the levels of protein structure? primary structure, secondary structure, tertiary structure, and quaternary structure.
what types of bonds/ interactions can occur between parts of the peptide chain in tertiary structure? hydrogen bonding, hydrophilic bonding, Van Der Waals (electron attractions), covalent bonding(disulfide), and ionic bonding
define denature to unfold the protein (caused by change in heat of pH)
what are the functions of proteins? catalysts, defense, movement, movement, signaling, structure, and transport.
Created by: mtalbot
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