Question

How does the concentration of the substrate in an enzyme-controlled chemical reaction change over time?

Answer 1

Answer:

The rate of a chemical reaction is directly proportional to the concentration. The rate of a chemical reaction increases as the substrate concentration increases and thus, concentration of the substrate in an enzyme-controlled chemical reaction increases with time.

Explanation:

The rate of a chemical reaction is directly proportional to the concentration.

The reaction rate increases with increasing substrate concentration, but levels off at a much lower rate. By increasing the enzyme concentration, the maximum reaction rate greatly increases.

Generally, the rate of a chemical reaction increases as the substrate concentration increases, and thus, concentration of the substrate in an enzyme-controlled chemical reaction increases with time.

Answer 2

Answer:

The substrate concentration decreases rapidly until a saturation point is reached where there is no further change in substrate concentration.

Explanation:

One of the most important parameters in discussion of rate of enzyme catalysed reaction is the substrate concentration. The rate of reaction increases smoothly as the rate of reaction until a point is reached and the rate of reaction becomes independent of substrate concentration. This is the saturation point.