AP Biology Ch 8 Metabolism & Enzymes

Front

What is the role of enzymes in biochemical reactions?

Back

Enzymes lower the activation energy of reactions, increasing the reaction rate.

Front

Define metabolism.

Back

Metabolism is all the energy transformation reactions in an organism.

Front

What is the active site of an enzyme?

Back

The active site is the part of the enzyme where the substrate binds.

Front

What is the effect of an inhibitor on an enzyme?

Back

An inhibitor decreases the activity of an enzyme, preventing it from catalyzing reactions.

Front

What type of reaction is represented by A --> B + C?

Back

This is a catabolic reaction, where a larger molecule is broken down into smaller products.

Front

What is an anabolic reaction?

Back

An anabolic reaction is a metabolic pathway that constructs molecules from smaller units, requiring energy.

Front

What is activation energy?

Back

Activation energy is the minimum energy required for a chemical reaction to occur.

Front

What is a coenzyme?

Back

A coenzyme is a non-protein molecule that assists enzymes in catalyzing reactions.

Front

How do temperature and pH affect enzyme activity?

Back

Enzymes have optimal temperature and pH ranges; deviations can reduce their activity or denature them.

Front

What is substrate specificity in enzymes?

Back

Substrate specificity refers to the ability of an enzyme to select and bind to a specific substrate.