Question

electricity is added to recharge a battery. what is added to adp to form atp?

a second ribose group
a third phosphate group
a third ribose group
a second phosphate group

Explanation:

🆕 New Concept Discovered: ATP-ADP Cycle
How cells store and release energy like a rechargeable battery.

Step 1: Understand the acronyms

To understand how ADP becomes ATP, we can look at what their names stand for:

• ADP stands for Adenosine Diphosphate. The prefix "di-" means two, meaning it has two phosphate groups.
• ATP stands for Adenosine Triphosphate. The prefix "tri-" means three, meaning it has three phosphate groups.

Step 2: Determine what is added

To turn a molecule with two phosphate groups (ADP) into a molecule with three phosphate groups (ATP), you must add one more phosphate group.

Adding this third phosphate group stores energy in the chemical bond, much like charging a battery.

Answer:

A third phosphate group