Enzymes Flashcards

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1
Q

what are enzymes

A

catalysts produced by living things that only catalyse with one specific reaction

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2
Q

how can you control a reaction to get the right amounts of substances

A

raising the temperature but there’s a limit so living things produce enzymes as a biological catalyst

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3
Q

what is a catalyst

A

a substance which increases the speed of a reaction without being changed or used up in the reaction

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4
Q

what are enzymes made up of

A

chains of amino acids

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5
Q

what do enzymes have so that they can catalyse reactions

A

special shapes

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6
Q

what do chemical reactions usually involve

A

things being split apart or joined together

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7
Q

what does changing the temperature of an enzyme-catalysed reaction do

A

change the rate

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8
Q

what happens if an enzyme-catalysed reaction gets too hot

A

the bonds break so the substrate won’t fit

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9
Q

what two things do all enzymes have

A

an optimum temperature and the right pH

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10
Q

what is the optimum pH of an enzyme-catalysed reaction

A

neutral pH 7

some pH 2

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