Enzymes Flashcards

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1
Q

What do (inorganic) cofactors do?

A

Help the enzyme and substrate bind together

e.g., chloride ion for amylase

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2
Q

What are organic cofactors called?

A

Coenzymes

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3
Q

What do coenzymes do?

A

Act as carriers for moving chemical groups between different enzymes (continually recycled)
e.g., NAD in respiration & photosynthesis

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4
Q

What do prosthetic group do?

A

Tightly bind to enzyme, allowing them to carry out catalytic function
e.g., Zinc for carbonic anhydrase

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5
Q

When does irreversible inhibition occur?

A

When bonds between inhibitor and enzyme are strong as inhibitor can’t be removed

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6
Q

When does reversible inhibition occur?

A

When bonds between inhibitor and enzyme are weak (H-bond/ ionic) so inhibitor can be removed

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7
Q

What’s end-product inhibition?

A

When enzymes are inhibited by the product of the reaction they catalyse

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