Exploring Enzymes and Catalysts in Chemical Reactions

What is the term for the energy required to start a chemical reaction?

• Activation energy

• Thermal energy

• Potential energy

• Kinetic energy

Which type of reaction releases more energy than it absorbs?

• Adiabatic reaction

• Isothermal reaction

• Exothermic reaction

• Endothermic reaction

What is a key characteristic of an endothermic reaction?

• It produces light

• It occurs spontaneously

• It absorbs more energy than it releases

• It releases heat

Why is heat not used as a catalyst in the human body?

• It is too slow

• It is too expensive

• It can denature proteins

• It is not available

What is the role of a catalyst in a chemical reaction?

• Change the products of the reaction

• Decrease the activation energy

• Slow down the reaction

• Increase the activation energy

What are enzymes primarily made of?

• Nucleic acids

• Proteins

• Lipids

• Carbohydrates

What is the specific region of an enzyme where the substrate binds called?

• Catalytic site

• Active site

• Binding site

• Reaction site

What happens if a substrate does not match the active site of an enzyme?

• The enzyme changes shape

• The reaction does not occur

• The enzyme is denatured

• The substrate is modified

In the context of enzymes, what is hydrolysis?

• The formation of a larger molecule

• The breakdown of a molecule with the addition of water

• The removal of water to form a bond

• The release of energy in the form of heat

What is dehydration synthesis?

• The release of energy in the form of light

• The formation of a larger molecule by removing water

• The absorption of energy to form a bond

• The breakdown of a molecule with the addition of water