Enzymes and organelles and Their Functions

Front

What happens when enzymes are heated to a high temperature?

Back

The shapes of the enzyme are altered (denature).

Front

What is the term for the region on an enzyme where the substrate binds?

Back

Active site.

Front

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

Back

The optimal temperature is often around 30°C.

Front

What is a substance called if it speeds up a chemical reaction?

Back

Catalyst.

Front

Which organelle is in control of the activity of the cell?

Back

Nucleus.

Front

What is the role of enzymes in biological reactions?

Back

Enzymes act as catalysts to speed up chemical reactions without being consumed.

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 function of the mitochondria?

Back

Mitochondria are the powerhouse of the cell, producing energy (ATP) through respiration.

Front

What is a substrate in enzyme reactions?

Back

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

Front

How do temperature changes affect enzyme activity?

Back

Increased temperature can increase activity up to a point, but too high can lead to denaturation.