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

Front

What is enzyme denaturation?

Back

Denaturation is the process where an enzyme loses its three-dimensional structure, leading to a loss of function.

Front

What factors can cause enzyme denaturation?

Back

Factors include extreme temperatures, pH changes, and high concentrations of certain chemicals.

Front

How does temperature affect enzyme activity?

Back

Enzymes have an optimal temperature range; outside this range, activity decreases, and extreme heat can cause denaturation.

Front

What is the effect of pH on enzyme activity?

Back

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

Front

What happens to enzyme activity when temperature decreases?

Back

Enzyme activity generally decreases as temperature drops, but it does not cause denaturation.

Front

Can denatured enzymes regain their function?

Back

Sometimes, denatured enzymes can regain their function if the denaturing conditions are removed.

Front

What is the relationship between enzyme structure and function?

Back

The structure of an enzyme is crucial for its function; any change in structure can affect its ability to catalyze reactions.

Front

What happens to hydrogen ion concentration when pH increases?

Back

When pH increases, the hydrogen ion concentration decreases.

Front

What is the optimal temperature for most human enzymes?

Back

Most human enzymes have an optimal temperature around 37°C (98.6°F).

Front

What is the role of enzymes in biochemical reactions?

Back

Enzymes act as catalysts, speeding up biochemical reactions without being consumed in the process.