AP Biology Unit 3 Flashcard--3.1-3.4

Front

What is the first law of thermodynamics also known as?

Back

The Law of the Conservation of Energy.

Front

What is defined as the ability to do work?

Back

Energy.

Front

How do enzymes work?

Back

Enzymes lower the activation energy of the reaction to increase the reaction rate.

Front

What is competitive inhibition in enzyme regulation?

Back

Competitive inhibition occurs when an inhibitor binds to the active site of an enzyme, preventing substrate binding.

Front

What is the difference between a competitive inhibitor and a non-competitive inhibitor?

Back

A competitive inhibitor binds to the active site of the enzyme, while a non-competitive inhibitor binds to an allosteric site.

Front

What is the role of enzymes in biological reactions?

Back

Enzymes act as catalysts to speed up chemical reactions by lowering the activation energy.

Front

What is activation energy?

Back

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

Front

What is an allosteric site?

Back

An allosteric site is a specific site on an enzyme where a molecule can bind, causing a change in the enzyme's activity.

Front

What is the significance of the Law of Conservation of Energy in biological systems?

Back

It states that energy cannot be created or destroyed, only transformed, which is crucial for understanding metabolic processes.

Front

What factors can affect enzyme activity?

Back

Factors include temperature, pH, substrate concentration, and the presence of inhibitors or activators.