Concept 2: Adenosine Triphosphate

Front

What is ATP?

Back

ATP (Adenosine Triphosphate) is the primary energy-carrying molecule in cells, used to store and transfer energy for various cellular functions.

Front

What does ATP stand for?

Back

ATP stands for Adenosine Triphosphate.

Front

What is the role of ATP in cellular processes?

Back

ATP provides energy for cellular processes such as muscle contraction, nerve impulse propagation, and biosynthesis.

Front

What happens to ATP when it releases energy?

Back

When ATP releases energy, it is converted to ADP (Adenosine Diphosphate) and a free phosphate group.

Front

What is the ATP-ADP cycle?

Back

The ATP-ADP cycle is the process by which ATP is converted to ADP and phosphate to release energy, and then ADP is recycled back to ATP using energy from food.

Front

Why is ATP considered an exothermic reaction when broken down?

Back

Breaking down ATP is exothermic because it releases energy that can be used for cellular work.

Front

What is the most common macromolecule broken down for energy?

Back

Carbohydrates are the most commonly broken down macromolecules for energy.

Front

What is the significance of the phosphate groups in ATP?

Back

The phosphate groups in ATP store potential energy; when a phosphate group is removed, energy is released.

Front

How does ATP provide energy to cells?

Back

ATP provides energy to cells by undergoing hydrolysis, which breaks the bond between the last two phosphate groups.

Front

What is the difference between ATP and ADP?

Back

ATP has three phosphate groups, while ADP has two; ATP is the energy-rich form, and ADP is the energy-poor form.