Enzyme III Flashcards Preview

Molecules and Cells (Unit 1) > Enzyme III > Flashcards

Flashcards in Enzyme III Deck (8)
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1
Q

Heterotropic allosteric modifiers

A
  1. Structurally different from the substrate
  2. May be an activator or an inhibitor
2
Q

What is the role of cAMP in the regulatory pathways of phosphofructokinase and fructose 1,6-bisphosphatase?

A

Increase cAMP

Activate gluconeogenesis &
Inhibit glycolysis

3
Q

Allosteric inhibitor_____ the [S] required for 50% activity.

A

Increases

4
Q

Homotropic allosteric modifiers

A
  1. Usually a substrate
  2. Will only activate the enzyme
5
Q

Draw cooperativity plot

A
6
Q

Binding at the allosteric site cause a _______change.

A

Conformational

7
Q

Allosteric site

A

A binding site on the enzyme that is different from the active site

8
Q

Allosteric activator _____the [S] required for 50% activity.

A

Decrease