Enzymes

Front

What is the relationship between enzymes and activation energy?

Back

Enzymes lower the activation energy of chemical reactions.

Front

How will enzymes in bacteria that function best at 70 °C be affected at 50 °C?

Back

The enzymes will not increase the rate of reactions as much as they would at 70 °C.

Front

The graph below shows how the activity of an enzyme changes over a range of pH values. What is the optimum pH of the enzyme?

Back

The optimum pH of the enzyme is 6.6.

Front

What is another name for the substance labeled "catalyst" in a biochemical process diagram?

Back

Enzyme

Front

Why are enzymes necessary for many cellular reactions?

Back

The reactions are too slow to meet the needs of the cell if enzymes are missing.

Front

What will most likely happen if an appropriate enzyme is added to a chemical reaction?

Back

The reaction rate will increase.

Front

The human body maintains a temperature of around 98.6 degrees at all times. Enzymes are involved in almost every chemical reaction in the body. What is the connection between these two statements?

Back

Enzymes function best at a specific temperature.

Front

The enzyme lactase will break down the sugar lactose into which of the following components? Options: monosaccharides, nucleic acids, amino acids, phospholipids

Back

monosaccharides

Front

What most likely happens to pepsin as it enters the small intestine?

Back

It becomes inactive.

Front

The activity of which enzyme decreases in both acidic and basic environments?

Back

chymotrypsin