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Enzyme Function and Classification Quiz

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Questions and Answers

What is the main way in which enzymes speed up the rates of reactions?

Altering the substrate shape

Providing a microenvironment to facilitate the reaction (correct)

Bringing substrates together in a position that favors the reaction

Directly participating in the chemical reaction

What is the role of NAD+/NADH and FAD2+/FADH2 in cellular respiration?

Catalyzing the dissociation of molecules

Facilitating the movement of functional groups

Accepting electrons in redox reactions (correct)

Donating electrons in redox reactions

Which class of enzymes catalyzes the joining of two molecules?

Ligases (correct)

Hydrolases

Isomerases

Transferases

What are the three major stages of cellular respiration in order?

Glycolysis, the Citric Acid cycle (TCA), and the electron transport chain (ETC) Signup and view all the answers

Where does glycolysis occur within the cell?

Cytosol Signup and view all the answers

Which class of enzymes catalyzes the joining of two molecules?

Ligases Signup and view all the answers

How do enzymes speed up the rates of reactions?

By bringing substrates together in a position that favors the reaction Signup and view all the answers

Where does glycolysis occur within the cell?

Cytoplasm Signup and view all the answers

What is the main function of Oxidoreductase enzymes?

Transfer electrons Signup and view all the answers

What are the three major stages of cellular respiration in order?

Glycolysis, the Citric Acid cycle (TCA), and the electron transport chain (ETC) Signup and view all the answers

Study Notes

Enzymes and Cellular Respiration

Enzymes speed up reaction rates by lowering the activation energy required for the reaction to occur.
NAD+/NADH and FAD2+/FADH2 are electron carriers that play a crucial role in transferring electrons during cellular respiration.
Ligase enzymes catalyze the joining of two molecules, forming a new covalent bond.

Cellular Respiration Stages

The three major stages of cellular respiration are glycolysis, the citric acid cycle, and oxidative phosphorylation.

Glycolysis

Glycolysis occurs in the cytosol of the cell.

Enzyme Functions

Oxidoreductase enzymes catalyze oxidation and reduction reactions, facilitating the transfer of electrons.

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Description

Test your knowledge of enzymes with this quiz. Learn about how enzymes work, including their role in bringing substrates together, altering substrate shape, providing a microenvironment, and participating in chemical reactions. Explore the six classes of enzymes, including transferases, and understand how enzymes speed up reaction rates by lowering activation energy barriers.