Understanding Enzymes

What are enzymes primarily composed of?

• Lipids

• Carbohydrates

• Proteins

• Nucleic acids

What is the main function of enzymes in biological reactions?

• To change the products of reactions

• To speed up reactions

• To slow down reactions

• To provide energy for reactions

What term is used to describe enzymes due to their ability to increase reaction rates?

• Biocatalysts

• Biopolymers

• Bioreactors

• Biomolecules

How do enzymes affect the activation energy of a reaction?

• They eliminate it

• They have no effect on it

• They decrease it

• They increase it

What is the term for the specific location on an enzyme where the substrate binds?

• Binding site

• Active site

• Catalytic site

• Reaction site

Which model describes the enzyme-substrate interaction as a perfect fit?

• Active site model

• Induced fit model

• Lock and key model

• Substrate model

What type of bonds are involved in the binding of substrates to the active site of enzymes?

• Peptide bonds

• Metallic bonds

• Hydrogen bonds

• Covalent bonds

What is the role of the active site in enzyme function?

• To change the enzyme's shape

• To release products

• To bind substrates and facilitate reactions

• To store energy

Which of the following is an example of an enzyme that uses the induced fit model?

• Amylase

• Exo kinase

• Lipase

• Protease

What is the significance of the induced fit model in enzyme activity?

• It prevents enzymes from binding substrates

• It enables enzymes to change shape to fit the substrate

• It increases the size of the active site

• It allows enzymes to bind any substrate