Enzymes

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Created by: Charece.x
Created on: 12-03-17 19:46

what does an enzyme do?

speed up chemical reactions by acting as biological catalysts.

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what type of protein are enzymes?

Globular

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Describe the lock and key hypothesis

This is where a substrate fits into the enzyme in the same way a key fits into a lock.The substrate fits into the enzyme and then an enzyme substrate complex is formed, after that a enzyme product complex is formed.

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Describe the induced fit hypothesis

enzymes are only specific to on particular substrate as the active site changes slightly.

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How do higher temperatures influence enzyme activity?

higher temperatures allow for more kinetic energy within molecu

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What do temperatures above the optimum do to enzymes?

They change the shape of the active site so the enzyme and substrate can no longer fit togethr so the enzyme becomes denatured.

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What effect do PH's above and below the optimum have on the enzyme?

can mess up ionic bonds and hydrogen bonds that hold its tertiary structure together in place. The enzyme becomes denatured.

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How does enzyme conc affect the rate of reaction?

More enzyme molecules= more enzyme substrate complexes. increase in rate of reaction

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what happens to the enzyme concentration if substrate is limited?

adding more enzyme has no further efect

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Other cards in this set

Card 2

Front

what type of protein are enzymes?

Back

Globular

Card 3

Front

Describe the lock and key hypothesis

Back

Card 4

Front

Describe the induced fit hypothesis

Back

Card 5

Front

How do higher temperatures influence enzyme activity?

Back

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Enzymes