B1.2.3 - Enzymes Flashcards

1
Q

What is an enzyme made of?

A

Protein

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2
Q

What is an enzyme?

A

A biological catalyst

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3
Q

What does a biological catalyst do?

A

It speeds up a reaction without using itself up

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4
Q

Can enzymes catalyse the same reaction again after they catalyse it the first time?

A

Yes

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5
Q

Suggest a few reactions that enzymes help with in your body

A

They build larger molecules from small ones, such as in protein synthesis.
They break down larger molecules into smaller ones, such as in digestion.

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6
Q

What is the molecule that binds to an enzyme called?

A

Substrate

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7
Q

What is the active site?

A

The place where enzymes and substrates bond together

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8
Q

How many different molecules can enzymes bind to?

A

1

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9
Q

What is the name of the hypothesis used to explain the bonding of enzymes?

A

The lock and key hypothesis

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10
Q

What is formed when a substrate and an enzyme is formed?

A

An enzyme-substrate complex is formed

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11
Q

How do enzymes catalyse reactions?

A

The substrate bonds with the enzyme, which does the reaction quickly and then releases the substrate

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