Enzymes (Enzyme Regulation)

Enzymes _____ chemical reactions in the body and are ________________ in the reaction.

• slow down and are not consumed

• speed up and are consumed

• slow down and are consumed

• speed up and are not consumed

In what type of inhibition is the active site blocked?

• competitive

• allosteric

Enzymes have a specific

• receptor

• shape

• membrane

• organism

Which of the following is true:

• The active site of an enzyme will not fit any substrate.

• The active site of an enzyme can automatically fit any type/shape of substrate.

• Since the active site of an enzyme has a specific shape it can only fit one substrate.

Enzymes _____ activation energy to break chemicals.

• lower

• increase

• create

The substances that are released after an enzyme reaction are called:

• Products

• Cofactors

• Reactants

• Coenzymes

Cofactors are

• energy sources

• inorganic

• biomolecules

• catalase

Coenzymes are organic and an example are _____

• lactase

• hemoglobin

• vitamins

• cofactors

Allosteric inhibition is when a chemical bonds to the active site on an enzyme

• True

• False