Enzymes and organelles and Their Functions

Front

What is the enzyme-substrate complex?

Back

The enzyme-substrate complex is a temporary molecule formed when an enzyme comes into contact with its substrate. It is crucial for the enzyme's catalytic activity.

Front

What do enzymes typically end with?

Back

Enzymes typically end with the suffix '-ase', indicating their function as catalysts.

Front

Which organelle controls the activity of the cell?

Back

The nucleus controls the activity of the cell by regulating gene expression and mediating the replication of DNA during the cell cycle.

Front

What happens to enzymes when they are heated to high temperatures?

Back

When enzymes are heated to high temperatures, their shapes are altered in a process called denaturation, which can lead to loss of function.

Front

What are products in the context of enzyme activity?

Back

Products are the substances that are formed as a result of the enzyme-catalyzed reaction, after the substrate has been transformed.

Front

What is the role of enzymes in biological reactions?

Back

Enzymes act as catalysts that speed up chemical reactions in the body by lowering the activation energy required for the reaction to occur.

Front

What is a substrate in enzyme activity?

Back

A substrate is the reactant molecule upon which an enzyme acts, binding to the enzyme's active site.

Front

What is denaturation in relation to enzymes?

Back

Denaturation is the process in which an enzyme loses its three-dimensional structure due to external stress, such as heat or pH changes, resulting in loss of function.

Front

What is the active site of an enzyme?

Back

The active site is the specific region of an enzyme where the substrate binds and the reaction occurs.

Front

How do temperature and pH affect enzyme activity?

Back

Enzyme activity is highly dependent on temperature and pH; extreme conditions can lead to denaturation and decreased activity.