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Flashcards in Biochemistry- Enzymes Deck (9)
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1

What do enzymes do in chemical reactions?

lower activation energy to increase the rate of reaction, make it more likely to occur

2

What 2 things affect enzyme activity?

pH and temperature

3

The synthesis of an enzyme needed for breakdown of a certain structure is initiated by the presence of that substrate:

induction

4

modulation of an enzyme by the nonequivalent binding of a specific metabolite at a site other than the active site is an example of what?

allosteric activity

5

molecules that must undergo cleavage reactions in order to become active are known as what?

zymogens

6

Substances that hold an enzyme in certain configurations so that it can function are known as what?

cofactors, coenzymes

7

Phosphorylation or dephospho rylation of an enzyme is an example of what?

covalent modification

8

An enzyme bound to its coenzyme is known as what?

a holoenzyme ('whole')

9

Multiple forms of an enzyme that catalyzes the same reaction but differ from each other in amino acid sequence, substrate affinity and regulatory properties is known as what?

isozyme