enzymes unfinished

Enzymes

What are enzymes?

​Enzymes are proteins but they are also called catalysts

Catalysts speed up the rate of reactions

Fill in the Blanks

The substances that enzymes act upon are known as substrates.

​Enzymes and substrates

Reactions need to use MORE energy when enzymes are not present.

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With an enzyme versus without an enzyme

The Active Site is known as the area where the enzyme and substrate attach.
Once they come together, they are an enyme-substrate complex

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The Active Site

Match

match the following

• enzyme

• connects with the enzyme

• the area where the enzyme and substrate come together

• what does a substrate become at the end of a reaction?

• when the enzyme and substrate come together

protein

substrate

active site

product

enzyme substrate complex

• protein

• substrate

• active site

• product

• enzyme substrate complex

-Enzymes LOWER activation energy
-Activation energy- energy needed to start a reaction

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Enzymes SPEED UP chemical reactions

Multiple Choice

enzymes _________ activation energy

• lower

• increase

• higher

• have nothing to do with

pH and temperature can affect the activity of enzymes.

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​pH and Temp