Thermodynamics, Enzymes, and Metabolism

Front

What does the 2nd Law of Thermodynamics state about energy conversion?

Back

Some energy will be converted to heat and not available to do work.

Front

How are enzymes affected at temperatures lower than their optimal temperature?

Back

The enzymes will not increase the rate of reactions as much as they would at their optimal temperature.

Front

What is the role of ATP in cellular work?

Back

It powers cellular work by coupling exergonic reactions to endergonic reactions.

Front

What does energy coupling mean?

Back

The energy created by catabolic reactions is used to power anabolic reactions.

Front

What is an enzyme-substrate complex?

Back

It is the intermediate formed when an enzyme binds to its substrate.

Front

Define thermodynamics.

Back

The branch of physics that deals with the relationships between heat and other forms of energy.

Front

What is metabolism?

Back

The sum of all chemical reactions that occur within a living organism.

Front

What are exergonic reactions?

Back

Reactions that release energy.

Front

What are endergonic reactions?

Back

Reactions that require energy input to proceed.

Front

What is the active site of an enzyme?

Back

The region on the enzyme where the substrate binds.