Energy Flow in Biology Practice Questions

Front

What organelle is responsible for cellular respiration?

Back

Mitochondria

Front

What are enzymes?

Back

Enzymes are proteins that speed up chemical reactions in the body.

Front

What happens to enzymes at very high temperatures (e.g., 100 degrees C)?

Back

Enzymes undergo denaturation, losing their functional shape.

Front

How is energy used in cells to perform work?

Back

A phosphate group from ATP is removed and added to another molecule.

Front

Why are enzymes highly specific?

Back

Because their active site only fits a certain substrate.

Front

What is ATP?

Back

Adenosine triphosphate, the energy currency of the cell.

Front

What is the role of chloroplasts in energy flow?

Back

Chloroplasts are responsible for photosynthesis, converting light energy into chemical energy.

Front

What is denaturation in the context of enzymes?

Back

Denaturation is the process where enzymes lose their structure and function due to extreme conditions.

Front

What is the active site of an enzyme?

Back

The region on the enzyme where the substrate binds.

Front

What is the difference between ADP and ATP?

Back

ADP (adenosine diphosphate) has one less phosphate group than ATP and is less energy-rich.