Macromolecule Exam Study Guide.
Peptide - answerShort chain of amino acids linked by peptide bonds
peptide bond - answerThe chemical bond that forms between the carboxyl group of one amino
acid and the amino group of another amino acid, covalent bonds
Protein - answerAn organic compound that is...
lock and key model - answer✔The model of the enzyme that shows the substrate fitting perfectly
into the active site
Catalyst (enzyme) - answer✔A substance that increases the rate of a chemical reaction without
being changed itself, lowers the activation energy needed for a reaction
Competitive inhibition of enzymes - answer✔occurs when a substance other than the substrate
binds to the active site of an enzyme
non-competitive inhibitor - answer✔A substance that reduces the activity of an enzyme by
binding to a location remote from the active site, changing its conformation so that it no longer
binds to the substrate.
polarity of water - answer✔has polar covalent bonds; H is partially positive, O is partially
negative
Solute - answer✔A substance that is dissolved in a solution.
Solvent - answer✔A liquid substance capable of dissolving other substances
Solution - answer✔A mixture that forms when one substance dissolves another.
capilary action is a result of water molecules: - answer✔having a strong cohesive force and
attaching to the surrounding vessel walls
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