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Macromolecules UPDATED Actual Exam Questions and CORRECT Answers
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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...

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  • September 19, 2024
  • 8
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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  • macromolecules

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  • Macromolecules
  • Macromolecules

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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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