Enzymes and organelles and Their Functions

Front

What is an enzyme?

Back

A biological catalyst that speeds up chemical reactions in living organisms.

Front

What is the optimal temperature for enzyme activity?

Back

The temperature at which an enzyme functions most efficiently, often around 30°C for many enzymes.

Front

What organelle is responsible for photosynthesis?

Back

Chloroplasts.

Front

What is a catalyst?

Back

A substance that increases the rate of a chemical reaction without being consumed in the process.

Front

What is the relationship between pH and enzyme activity?

Back

Each enzyme has an optimal pH range where it is most active; deviations can reduce activity.

Front

True or False: Every enzyme has an optimal temperature and pH.

Back

True.

Front

What happens to enzyme activity at extreme temperatures?

Back

Enzyme activity typically decreases and can lead to denaturation.

Front

What is denaturation in enzymes?

Back

A structural change in an enzyme that results in a loss of its biological properties.

Front

What is the role of mitochondria in a cell?

Back

Mitochondria are the powerhouses of the cell, generating ATP through cellular respiration.

Front

What is the function of ribosomes?

Back

Ribosomes are responsible for protein synthesis in the cell.