Enzymes test

The energy needed to get a reaction started is the

• activation energy

• adhesion energy

• cohesion energy

• chemical energy

Which of the following statements about enzymes is NOT true?

• Enzymes work best at a specified pH.

• The place where a substrate connects with an enzyme is called the substrate site.

• The shape of an enzyme allows it to work with a particular substrate.

• Enzymes are proteins.

Which body organ contains a high concentration of the enzyme, amylase

• Pancreas

• Liver

• Stomach

• Gall bladder

On the image below, which letter represents the substrate?

• A

• B

• C

• D

On the image below, which letter represents the enzyme?

• A

• B

• C

• D

Which letter represents product (s)

• A

• B

• C

• D

Tags

NGSS.HS-PS1-2

Which of the following statements is true about catalysts?

• Catalysts are used up during a chemical reaction.

• Catalysts slow down the rate of chemical reactions.

• All catalysts are enzymes

• Catalysts lower the activation energy.

Tags

NGSS.HS-PS1-4

All known enzymes are catalysts, but not all catalysts are enzymes.

• True

• False

Which enzyme is responsible for completing the digestion of protein?

• Pepsin

• Trypsin

• Amylase

• Peptidase

30. Base your answer on the graph and on your knowledge of Enzymes. Which is a true statement about the relationship between pH and enzyme action?

• All enzymes works best at neutral pH.

• Enzymes function only in a pH range of 4.0 to 5.5.

• The activity of an enzyme is affected by pH.

• pH has no effect on enzymes