3.1 Enzyme Structure Video Notes

What is the primary function of a catalyst in a chemical reaction?

• To be consumed by the reaction

• To slow down the reaction

• To speed up the reaction without being consumed

• To change the products of the reaction

Which of the following describes how an enzyme facilitates a synthesis reaction?

• It breaks down a large molecule into smaller ones

• It brings substrates closer together in the correct position for reaction

• It puts stress on bonds that must be broken

• It changes its shape permanently after the reaction

What is the term for the reactants in an enzyme-mediated chemical reaction?

• Products

• Catalysts

• Substrates

• Inhibitors

What is the active site of an enzyme?

• The part of the enzyme that is consumed during the reaction

• A non-specific region where any molecule can attach

• The location on an enzyme where the substrate attaches and the reaction occurs

• The end result of an enzyme-catalyzed reaction

In an enzyme-catalyzed reaction, what term is used for the reactants that attach to the enzyme?

• Products

• Catalysts

• Active sites

• Substrates

What happens to an enzyme's active site when a substrate attaches, according to the induced fit model?

• It becomes rigid and unchangeable

• It tightens slightly around the substrate

• It expands to accommodate any molecule

• It detaches from the enzyme

For an enzyme-mediated chemical reaction to occur, what two properties of the substrate must be compatible with the enzyme's active site?

• Size and temperature

• Shape and charge

• Mass and density

• Color and texture