UNIT TEST: Cell Theory-> ATP

Front

What is denaturation in the context of enzymes?

Back

Denaturation is the process in which an enzyme loses its functional shape due to high temperatures or extreme pH levels, resulting in a decrease in enzyme activity.

Front

Which organelle is known as the powerhouse of the cell?

Back

The mitochondria are known as the powerhouse of the cell because they are responsible for producing ATP, the energy currency of the cell.

Front

What is cellular respiration?

Back

Cellular respiration is the process by which cells convert glucose and oxygen into energy (ATP), carbon dioxide, and water. It occurs in both plants and animals.

Front

What role do enzymes play in chemical reactions?

Back

Enzymes act as catalysts in chemical reactions, speeding up the reaction rate without being consumed in the process.

Front

What is a nucleus?

Back

The nucleus is a membrane-bound organelle found in eukaryotic cells that contains the cell's genetic material (DNA) and controls cellular activities.

Front

What is ATP?

Back

ATP (adenosine triphosphate) is a molecule that carries energy within cells, providing the energy needed for various cellular processes.

Front

How do temperature changes affect enzyme activity?

Back

Temperature changes can affect enzyme activity; high temperatures can lead to denaturation, while low temperatures can slow down the reaction rate.

Front

What is the difference between prokaryotic and eukaryotic cells?

Back

Prokaryotic cells do not have a nucleus or membrane-bound organelles, while eukaryotic cells do.

Front

What is the function of ribosomes?

Back

Ribosomes are the cellular structures responsible for protein synthesis, translating messenger RNA (mRNA) into polypeptide chains.

Front

What is the role of chloroplasts in plant cells?

Back

Chloroplasts are organelles in plant cells that conduct photosynthesis, converting light energy into chemical energy stored in glucose.