The Chemistry of Life

Front

What is a substrate in an enzyme-controlled reaction?

Back

A substrate is a molecule upon which an enzyme acts. In the reaction monosaccharide + monosaccharide → disaccharide + water, the substrates are monosaccharide and monosaccharide.

Front

What is the chemical formula for water?

Back

The chemical formula for water is H2O.

Front

What is dehydration synthesis?

Back

Dehydration synthesis is a chemical reaction that involves the joining of two molecules with the removal of water. It is the process used to form disaccharides from monosaccharides.

Front

What are the end products of hydrolysis of a polysaccharide?

Back

The end products of hydrolysis of a polysaccharide are simple sugars.

Front

Which enzyme's activity decreases in both acidic and basic environments?

Back

Pepsin's activity decreases in both acidic and basic environments.

Front

What is hydrolysis?

Back

Hydrolysis is a chemical reaction that involves the breaking down of a compound by the addition of water.

Front

What is a disaccharide?

Back

A disaccharide is a carbohydrate formed by the combination of two monosaccharides.

Front

What is the role of enzymes in biochemical reactions?

Back

Enzymes act as catalysts to speed up biochemical reactions without being consumed in the process.

Front

What is the difference between aerobic respiration and anaerobic respiration?

Back

Aerobic respiration requires oxygen to produce energy, while anaerobic respiration occurs without oxygen.

Front

What are amino acids?

Back

Amino acids are the building blocks of proteins, consisting of an amino group, a carboxyl group, and a side chain.