AP Enzymes

With what 3 letters do enzymes typically end?

• -ose

• -ase

• -ese

• -tic

Most chemical reactions in the body rely on enzymes. Why are enzymes are necessary for many cellular reactions?

• The reactions are too slow to meet the needs of the cell if enzymes are missing

• The reactions take up too much space in the cell if enzymes are missing

• Enzymes change reactants from solid to liquid during the reactions.

• Enzymes supply the oxygen necessary for the reactions.

Tags

NGSS.HS-LS2-3

NGSS.HS-LS2-5

The human body maintains a temperature of around 98.6 degrees at all times. Enzymes are involved in almost every chemical reaction in the body. Which of the following describes the connection between these two statements?

• The body is kept relatively warm to prevent too much enzyme action.

• The body needs to be warm to prevent hypothermia.

• Enzymes function best at a specific temperature.

• There is no connection between the two statements.

Tags

NGSS.HS-LS1-3

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

• Coenzyme

• Substrate

• Vitamin

• Polypeptide

What is the term for a non-protein molecule that assists an enzyme in its function?

• Substrate

• Inhibitor

• Coenzyme

• Catalyst

During an enzyme-catalyzed reaction part of the enzyme molecule called the _____ _______ temporarily combines with parts of the substrate molecules, forming an enzyme substrate complex.

• active site

• catalytic site

How do enzymes speed up chemical reactions?

• By increasing the temperature

• By lowering the activation energy

• By increasing the concentration of reactants

• By changing the pH of the environment

Which of the following binds to the active site of an enzyme? 

• substrate

• product

• codon

• none of the above

Which part of the enzyme is responsible for its catalytic activity?

• Substrate

• Active site

• Inhibitor

• Coenzyme

Which of these factors can affect the initial rate of an enzyme reaction?

• Enzyme concentration

• Substrate concentration

• Temperature

• pH

• All of the above