2.9.2 Flashcards


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created 2 years ago by CedarmontKid
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1

Allosteric regulation occurs when

a molecule binds to an area other than the active site of the enzyme and prevents it from assuming the conformation necessary to bind substrate.

2

Which type of inhibitor always binds to the active site of an enzyme?

competitive inhibitor

3

Allosteric inhibition involves

The stabilization of an enzyme in an inactive form.

4

Which of the following statements regarding allosteric regulation is true?

Allosteric enzymes are often multi-subunit enzymes.

5

Molecules that are similar in shape to an enzyme substrate but are nonreactive if they bind to the active site are

competitive inhibitors

6

True or false?
An allosteric site is a binding region on an enzyme other than the active site.

true

7

In the absence of an inhibitor or activator an enzyme that is allosterically controlled will

fluctuate between being active and inactive.

8

Allosteric regulation is a type of enzyme regulation that uses molecules to inhibit or activate the enzyme by binding to it
at a place other than the

active site.

9

__________ are substances that bind to the enzyme and keep
it in an active state.

Activators

10

__________ are molecules that bind to the enzyme to keep it
in an inactive state.

Inhibitors