Biology Enzymes

Enzymes are _____________?

• Hydrocarbons

• Hormones

• Lipids

• Proteins

Tags

NGSS.HS-LS1-1

What is an enzyme?

• A protein that speeds up chemical reactions

• A protein that breaks apart molecules

• A protein needed for cell structure

• A neurological protein involved in cell signaling

Tags

NGSS.HS-LS1-7

NGSS.HS-PS1-5

What is activation energy

• The energy released after chemical reactions

• The energy required to activate an enzyme

• Energy absorbed by chemical reactions

Tags

NGSS.HS-PS1-4

An enzyme speeds up a reaction by

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

Tags

NGSS.HS-PS1-4

In a chemical reaction, a reactant binds to an enzyme at a region known as the

• catalyst.
• product.
• substrate.
• active site. 

Which of the factors does NOT affect enzymatic activity?

• Temperature
• pH
• Concentration
• Color

An enzyme is a catalyst.

• True
• False

What is a substance called if it speeds up a chemical reaction?

• reusable
• catalyst
• specific
• fragile

With what 3 letters do enzymes typically end?

• -ose
• -ase
• -ese
• -tic

Tags

NGSS.MS-LS1-7

Where do substrates bind on an enzyme?

• voltage-gated channels
• surface receptor
• calcium channels
• active site