Enzymes

Front

What is a catalyst?

Back

A substance that speeds up the rate of a chemical reaction.

Front

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

Back

Enzymes generally have an optimal temperature, often around 30°C for many enzymes.

Front

What is a substrate in the context of enzyme activity?

Back

A substrate is the reactant molecule upon which an enzyme acts.

Front

How can you identify an enzyme-catalyzed reaction on a graph?

Back

An enzyme-catalyzed reaction is typically represented by a line that shows a faster reaction rate compared to a non-catalyzed reaction.

Front

What role does an enzyme play in a chemical reaction?

Back

An enzyme acts as a catalyst to lower the activation energy required for a reaction to occur.

Front

What is the effect of temperature on enzyme activity?

Back

Enzyme activity typically increases with temperature up to a certain point (optimal temperature), after which it may denature and lose activity.

Front

What is enzyme denaturation?

Back

Denaturation is the process where an enzyme loses its functional shape due to extreme conditions, such as high temperature or pH.

Front

What is the relationship between enzyme concentration and reaction rate?

Back

Increasing enzyme concentration generally increases the reaction rate, provided there is enough substrate available.

Front

What is the significance of the active site of an enzyme?

Back

The active site is the specific region of the enzyme where substrate binding occurs, facilitating the chemical reaction.

Front

How do competitive inhibitors affect enzyme activity?

Back

Competitive inhibitors bind to the active site of an enzyme, preventing substrate from binding and thus decreasing the reaction rate.