Enzymes: Introduction

Enzymes are .......... molecules.

• Fat

• Carbohydrate

• Protein

• Fibre

Tags

NGSS.HS-LS1-1

NGSS.HS-LS1-6

Select the correct statement.

• Enzymes speed up chemical reactions.

• Enzymes slow down chemical reactions.

• Enzymes have no effect on chemical reactions.

• Enzymes speed up and slow down chemical reactions.

Enzymes are not used up in reactions and can be used again and again. Therefore they are ...

• catastrophic.

• caterpillars.

• Catalan.

• catalysts.

Tags

NGSS.HS-LS1-1

Enzymes work like a...

• hand and glove.

• lock and key.

• ball and chain.

• husband and wife.

The thing that is broken down or joined together by an enzyme is called the ....

• reactant.

• product.

• substrate.

• bond.

The part of the enzyme where a substrate connects is called an ...

• active site.

• action site.

• actual site.

• acting site.

Select the correct sentence.

• The active site will join with any kind of substrate.

• The active site will only join with a specific substrate.

• Both green and blue are correct.

• Both green and blue are incorrect.

Protease enzymes break down ...

• water.

• carbohydrates.

• lipids (fats).

• proteins.

Tags

NGSS.MS-LS1-7

Lipase enzymes break down ...

• water.

• carbohydrates.

• lipids (fats).

• proteins.

Tags

NGSS.MS-LS1-7

Carbohydrase enzymes break down ...

• water.

• carbohydrates.

• lipids (fats).

• proteins.