Enzymes

Enzymes are

• Nucleic Acids

• Proteins

• Carbohydrates

• Lipids

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

• Enzyme

• Substrate

• Codon

• None

An enzyme speeds up a chemical reaction in the cell, but can only be used once.

• True

• False

Enzymes speed up a chemical reaction by...

• Increasing activation energy

• destroying products

• lowering activation energy

• allowing reactions to process at their own speed

An enzyme and its substrates mechanism for binding is called

• lock and key

• match made

• induced fit

• none

Any substrate that is acted upon by an enzyme is called a

• reactant

• substrate

• enzyme

• product

Based on the graph, what temperature does this enzyme work best?

• 30

• 20

• 45

• 10

In the diagram, what is letter E?

• products

• Substrate

• active site

• enzyme

Letter D

• Enzyme

• Substrate

• Nucleic acid

• active site

If an enzyme becomes over heated what effect, if any, will the heat have on the enzymatic activity?

• The enzyme will not store much chemical energy.

• The enzyme will lose its net electrical charge.

• The enzyme will not be able to catalyze reactions.

• The enzyme will lose stored genetic information.