AP Bio Insta-Review Topic 3.3*: Environmental Impacts on Enzymes

Front

What is the effect of increasing product concentration on reaction rate?

Back

As the product concentration increases, the reaction rate decreases.

Front

How does a change in enzyme structure affect its function?

Back

A change in enzyme structure can lead to nonfunctionality, gain of new function, or no effect on function.

Front

Does any increase in heat denature an enzyme?

Back

False, not all increases in heat will denature an enzyme.

Front

What happens to an enzyme when the temperature increases too high?

Back

The enzyme denatures.

Front

Are enzymes consumed by the reactions they catalyze?

Back

False, enzymes are not consumed and can be reused.

Front

What is denaturation in the context of enzymes?

Back

Denaturation is the process where an enzyme loses its functional shape due to external stressors like heat or pH changes.

Front

What factors can affect enzyme activity?

Back

Temperature, pH, substrate concentration, and enzyme concentration.

Front

What is the optimal temperature range for most human enzymes?

Back

Most human enzymes function optimally at around 37°C (98.6°F).

Front

How does pH affect enzyme activity?

Back

Each enzyme has an optimal pH range; deviations can lead to decreased activity or denaturation.

Front

What is the role of substrates in enzyme reactions?

Back

Substrates are the reactants that enzymes act upon to facilitate a chemical reaction.