Macromolecules UPDATED Actual Exam Questions and CORRECT Answers
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Course
Macromolecules
Institution
Macromolecules
Macromolecules UPDATED Actual Exam
Questions and CORRECT Answers
peptide - CORRECT ANSWER- Short chain of amino acids linked by peptide bonds
peptide bond - CORRECT ANSWER- The chemical bond that forms between the
carboxyl group of one amino acid and the amino group of another amino acid, cov...
Macromolecules UPDATED Actual Exam
Questions and CORRECT Answers
peptide - CORRECT ANSWER- ✔✔Short chain of amino acids linked by peptide bonds
peptide bond - CORRECT ANSWER- ✔✔The chemical bond that forms between the
carboxyl group of one amino acid and the amino group of another amino acid, covalent bonds
Protein - CORRECT ANSWER- ✔✔An organic compound that is made of one or more
chains of amino acids and that is a principal component of all cells
amino acids - CORRECT ANSWER- ✔✔a simple organic compound containing both a
carboxyl (—COOH) and an amino (—NH2) group, building blocks of protein.
Enzyme - CORRECT ANSWER- ✔✔a substance produced by a living organism that acts as
a catalyst to bring about a specific biochemical reaction.
Substrate - CORRECT ANSWER- ✔✔reactant of an enzyme-catalyzed reaction
Active site of an enzyme - CORRECT ANSWER- ✔✔the region of an enzyme that attaches
to a substrate
activation energy - CORRECT ANSWER- ✔✔the minimum amount of energy required to
start a chemical reaction
lock and key model - CORRECT ANSWER- ✔✔The model of the enzyme that shows the
substrate fitting perfectly into the active site
Catalyst (enzyme) - CORRECT 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 - CORRECT ANSWER- ✔✔occurs when a substance
other than the substrate binds to the active site of an enzyme
non-competitive inhibitor - CORRECT 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 - CORRECT ANSWER- ✔✔has polar covalent bonds; H is partially
positive, O is partially negative
Solute - CORRECT ANSWER- ✔✔A substance that is dissolved in a solution.
Solvent - CORRECT ANSWER- ✔✔A liquid substance capable of dissolving other
substances
Solution - CORRECT ANSWER- ✔✔A mixture that forms when one substance dissolves
another.
capilary action is a result of water molecules: - CORRECT ANSWER- ✔✔having a strong
cohesive force and attaching to the surrounding vessel walls
Surface tension (of water) - CORRECT ANSWER- ✔✔the intermolecular hydrogen bonds
between molecules of water at the surface.
Cohesion - CORRECT ANSWER- ✔✔an attraction between molecules of the same
substance
Adhesion - CORRECT ANSWER- ✔✔force of attraction between different kinds of
molecules
hydrogen bond - CORRECT ANSWER- ✔✔Attraction between a slightly positive hydrogen
atom and a slightly negative atom. Weak.
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