Biology 1406 CH 8

17 terms by embelk 

Create a new folder

Advertisement Upgrade to remove ads

Short answer test questions.

List the 2 types of enzyme inhibitors and how each one works.

-Competitive inhibitor: binds to the active site of an enzyme
-Non-competitive inhibitor: binds to another part of an enzyme

What is metabolism?

The totality of an organism's chemical reactions

How do enzymes speed up reactions?

Enzymes lower the activation energy (EΑ) without affecting ∆G

The site where an enzyme binds to the substrate is known as the ________.

Active site

What is a spontaneous reaction?

A spontaneous reaction happens without energy input, and increases the entropy of the universe

What are the three kinds of cellular work?

-Chemical
-Transport
-Mechanical

________ energy is associated with motion and heat, while _________ energy is associated with location and chemical energy.

-Kinetic energy is associated with motion and heat
-Potential energy is associated with location and chemical energy

Differentiate between catabolic and anabolic reactions.

-Catabolic: release energy, break down, spontaneous, ∆G:neg, exergonic
-Anabolic: consume energy, build up, non-spontaneous, ∆G:pos, endergonic

What is a nonprotein enzyme helper called? Hint: they are usually small metallic ions.

Cofactors are nonprotein enzyme helpers

What is the first law of thermodynamics?

Energy is constant; it cannot be created or destroyed

The use of an exergonic process to drive an endergonic one is called __________.

Energy coupling

What is activation energy?

Activation energy is the initial energy needed to start a chemical reaction

What binds to the active site?

A substrate binds to the active site of an enzyme forming an enzyme-substrate complex

Free energy is also abbreviated as ________.

∆G (delta G)

What is the second law of thermodynamics?

Every energy transfer increases the entropy of the universe

What are the two factors that can influence optimal enzyme activity?

-Environmental factors (temperature, pH)
-Chemicals that specifically influence the enzyme

What is it called when a regulatory molecule binds to a protein at one site and effects the protein's function at another site?

Allosteric regulation

Please allow access to your computer’s microphone to use Voice Recording.

Having trouble? Click here for help.

We can’t access your microphone!

Click the icon above to update your browser permissions above and try again

Example:

Reload the page to try again!

Reload

Press Cmd-0 to reset your zoom

Press Ctrl-0 to reset your zoom

It looks like your browser might be zoomed in or out. Your browser needs to be zoomed to a normal size to record audio.

Please upgrade Flash or install Chrome
to use Voice Recording.

For more help, see our troubleshooting page.

Your microphone is muted

For help fixing this issue, see this FAQ.

Star this term

You can study starred terms together

NEW! Voice Recording

Create Set