ENZYMES

What is/are produced when starch is partially digested?

• fructose & glucose

• maltose

• galactose

• sucrose & glucose

Enzymes can be found in all living organisms. True or false.

• True

• False

Fats can only be absorbed after being digested into __________.

• fatty acids & amino acids

• amino acids & glycerol

• fatty acids & glycerol

• fatty acids & glyceride

Starch is digested to maltose by the enzyme amylase.

According to the ‘lock and key’ hypothesis, which is the ‘key’ and which is the ‘lock’?

• A

• B

• C

• D

Trypsin can be found within the intestinal wall and muscle cells. True or False.

• True

• False

Answer explanation

Trypsin is a digestive enzyme found in the small intestine responsible for protein digestion. It is not found in muscle cells.

• A

• B

• C

• D

The diagrams represent the activity of an enzyme.

Which of the following correctly matches the labelled part and its name?

• 1 - enzyme

• 2 - active site

• 3 - substrate

• 4 - product

Which of the following are proteins and increase the rate of biochemical reactions?

• Enzymes

• Genes

• Hormones

• Fibrin

What kind of molecule could an enzyme be?

• fat

• glucose

• protein

• starch

At higher temperature, enzyme molecules collide with one another more frequently thus catalytic activity increases. True or false.

• True

• False

Answer explanation

Merely collision among enzyme molecules does not bring about catalytic reaction. it has to be collision between enzyme molecules and substrate molecules that can result in product formation.