Enzymes Day 2

Front

What happens to enzymes when they are heated beyond their optimal temperatures?

Back

The structure of the enzyme becomes denatured and it becomes less effective at speeding up reaction rates.

Front

What do we call the enzymatic process involving several enzymes over several steps to create a final product?

Back

Multiple-Enzymatic Systems.

Front

What is the optimal temperature for enzyme activity based on typical graphs?

Back

30°C.

Front

At which pH levels do enzymes work the least effectively?

Back

Between 6.6-7.4.

Front

How does an enzyme speed up a reaction?

Back

By lowering the activation energy.

Front

What is denaturation in the context of enzymes?

Back

Denaturation is the process where the enzyme's structure is altered, affecting its function.

Front

What is the role of an enzyme's active site?

Back

The active site is the region where substrate molecules bind and undergo a chemical reaction.

Front

What factors can affect enzyme activity?

Back

Temperature, pH, substrate concentration, and enzyme concentration.

Front

What is the effect of temperature on enzyme activity?

Back

Enzyme activity typically increases with temperature up to an optimal point, after which it decreases due to denaturation.

Front

What is the significance of the activation energy in enzyme-catalyzed reactions?

Back

Activation energy is the energy required to start a reaction; enzymes lower this energy barrier.