Question

Based on your observations, how does substrate concentration affect enzyme activity? (more than 1,

Answer 1

Substrate concentration affect enzyme activity -

1. There is more enzyme activity at higher substrate concentrations due to more collisions between enzyme and substrate until a maximum rate is reached

2 Once the maximum reaction rate for the enzyme is reached, the reaction rate levels off.

The enzymatic reaction depends on various factors including temperature, substrate concentration, concentration enzyme, and other factors. The rate of a chemical reaction is affected by the total number of enzymes as well as the concentration of substrate

• Increasing substrate concentration increases the activity of a corresponding enzyme
• After a certain point, the rate of activity will cease to rise regardless of any further increases in substrate levels as the environment is saturated with substrate and all enzymes are bound and reacting to the maximum limit.

• A high concentration of substrate causes increases in a collision between enzyme and substrate.
• Collisions bring substrate molecules and enzymes together and increase enzymatic activity.

Thus, Substrate concentration affect enzyme activity -

1. There is more enzyme activity at higher substrate concentrations due to more collisions between enzyme and substrate until a maximum rate is reached

2 Once the maximum reaction rate for the enzyme is reached, the reaction rate levels off.

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