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Understanding Exergonic and Endergonic Reactions

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Understanding Exergonic and Endergonic Reactions

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Questions and Answers

What role do coenzymes play in enzyme reactions?

Inducing a conformational change in the enzyme

Competing with the substrate for the active site

Acting as organic helper molecules with a basic atomic structure (correct)

Providing inorganic ions like iron and magnesium

How do noncompetitive inhibitors affect enzyme activity?

Prevent the substrate from binding to the allosteric site

Enhance the enzyme-substrate affinity

Induce denaturation of the enzyme (correct)

Compete with the substrate for the active site

What is the impact of extreme pH levels on enzyme activity?

Increases enzyme specificity

Causes the enzyme to denature (correct)

Promotes protein synthesis

Enhances enzyme reaction rates

What type of reaction releases energy in the covalent bonds of the reactants?

Exergonic reaction Signup and view all the answers

What is the main difference between competitive and noncompetitive inhibitors?

Noncompetitive inhibitors prevent substrate binding at the active site Signup and view all the answers

Which of the following statements about enzymes is true?

Enzymes have a specific shape that determines their specificity Signup and view all the answers

What is the region of the enzyme where the substrate fits into?

Active site Signup and view all the answers

How does the plasma membrane achieve selective permeability?

By discriminating based on molecule size and charge Signup and view all the answers

What is the main function of enzyme enhancers?

Attach to the allosteric site and initiate conformation changes Signup and view all the answers

Which type of reaction combines an exergonic reaction with an endergonic reaction?

Coupled reaction Signup and view all the answers