Year 11 Biology Enzymes

Enzymes are

• Lipids

• Carbohydrates

• Proteins

• Nucleic Acids

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NGSS.HS-LS1-1

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What is the purpose  of an enzyme?

• give permission for the reaction
• raise activation energy
• speed up reactions
• control how many reactions occur

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NGSS.MS-LS1-7

Each enzyme only has 1 substrate that will fit its active site.  What is this called?

• reusable
• catalyst
• specific
• fragile

Any substance that is acted upon by an enzyme is called a(n)?

• Coenzyme
• Substrate
• Vitamin
• Polypeptide

Letter D...

• active site
• enzyme
• substrate
• products

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NGSS.MS-LS1-7

Letter B...

• active site
• enzyme
• substrate
• products

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NGSS.MS-LS1-7

NGSS.MS-PS1-2

Letter C...

• active site
• enzymes
• substrate
• products

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NGSS.MS-LS1-7

NGSS.MS-PS1-2

Letter E...

• active site
• enzyme
• substrate
• products

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NGSS.MS-LS1-7

Enzymes provide a site where reactants called substrates can be brought together in an enzyme-catalyzed reaction. The site is called the

• enzyme substrate complex.
• reaction site.
• active site.
• lock and key.

An enzyme speeds up a reaction by

• lowering the activation energy.
• raising the activation energy.
• releasing energy.
• absorbing energy.

Tags

NGSS.HS-PS1-4