What are enzymes?

• Molecules that prevent chemical reactions in our bodies.

• Special proteins that help chemical reactions happen in our bodies.

• Parts of the cell that contain genetic information.

• Energy sources for chemical reactions.

What is the active site of an enzyme?

• The energy needed to begin a chemical reaction.

• The molecule that the enzyme works on.

• A specific part of an enzyme where it binds to the reactant molecules.

• The concept that enzymes can change shape slightly to fit the substrate better.

What is a substrate in the context of enzymes?

• The energy needed to begin a chemical reaction.

• The molecule that the enzyme works on.

• A specific part of an enzyme where it binds to the reactant molecules.

• The concept that enzymes can change shape slightly to fit the substrate better.

What does the term "activation energy" refer to?

• The molecule that the enzyme works on.

• The concept that enzymes can change shape slightly to fit the substrate better.

• The energy needed to begin a chemical reaction.

• A specific part of an enzyme where it binds to the reactant molecules.

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What is the "induced fit model" in the context of enzyme activity?

• The energy needed to begin a chemical reaction.

• The molecule that the enzyme works on.

• A specific part of an enzyme where it binds to the reactant molecules.

• The concept that enzymes can change shape slightly to fit the substrate better.

What is the function of enzymes in our bodies?

• Enzymes help chemical reactions happen in our bodies.

• Enzymes are special proteins that make our bodies stronger.

• Enzymes are molecules that protect our bodies from diseases.

• Enzymes are substances that provide energy for our bodies.

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What is the active site of an enzyme?

• The part of the enzyme that binds to the reactant molecules.

• The molecule that the enzyme works on.

• The energy needed to begin a chemical reaction.

• The complex formed by the active site and substrate.

Why are enzymes important in our bodies?

• Enzymes help our bodies carry out many important chemical reactions.

• Enzymes protect our bodies from extreme temperatures and pH levels.

• Enzymes change shape to fit the substrate better.

• Enzymes bind to certain substrates like puzzle pieces.

What is the role of the substrate in an enzyme-substrate complex?

• It is the part of the enzyme that binds to the reactant molecules.

• It is the molecule that the enzyme works on.

• It is the energy needed to begin a chemical reaction.

• It is the complex formed by the active site and substrate.

How do extreme temperatures and pH levels affect enzymes?

• They have no effect on enzymes.

• They cause enzymes to work better.

• They can cause enzymes to stop working.

• They change the shape of the active site.