Metabolism and Biochemical Reactions Quiz

What role do enzymes play in metabolism?

• They act as inhibitors

• They act as catalysts

• They act as substrates

• They act as products

What is the process called when smaller compounds are combined to form larger compounds?

• Hydrolysis

• Oxidation

• Condensation

• Reduction

Which type of reaction is photosynthesis an example of?

• Catabolic

• Anabolic

• Exothermic

• Neutral

What is released as a by-product of condensation reactions?

• Oxygen

• Carbon dioxide

• Water

• Glucose

What type of process is cell respiration?

• Endergonic

• Exergonic

• Anabolic

• Neutral

What is the primary role of an enzyme in a cell?

• To act as a structural component

• To speed up chemical reactions

• To store genetic information

• To transport molecules across membranes

What is the term used to describe the specific area where a substrate binds on an enzyme?

• Active site

• Binding site

• Reaction site

• Catalytic site

Which model describes an enzyme's active site fitting precisely with a substrate?

• Induced fit model

• Lock and key model

• Substrate model

• Enzyme-substrate model

What can increase the frequency of successful collisions in enzyme reactions?

• Decreasing temperature

• Increasing molecular motion

• Reducing substrate concentration

• Lowering enzyme concentration

What is the term for the loss of biological activity in an enzyme due to structural changes?

• Denaturation

• Deactivation

• Decomposition

• Dehydration