### Transcription and Explanation for Educational Website---#### Text Content:**13.** This new compound with one fewer phosphate group is called adenosine diphosphate (ADP). What does the prefix “di” mean? ______________**14.** Compare the structural formulas of ADP and ATP and complete the table below.| | ATP | ADP ||---------------------|-----|-----|| Number of ribose molecules | | || Number of adenine molecules | | || Number of phosphate molecules | | || Which one is formed when ATP loses a phosphate group? Mark only one box. | | || Which one is formed when ADP gains a phosphate group? Mark only one box. | | |**Part III:** Changing ADP to ATP#### Explanation of Table for Educational Context:- **ATP (Adenosine Triphosphate)** and **ADP (Adenosine Diphosphate)** are molecules involved in energy transfer within cells. - **Number of ribose molecules:** Both ATP and ADP contain one ribose sugar molecule. - **Number of adenine molecules:** Both ATP and ADP contain one adenine molecule. - **Number of phosphate molecules:** - **ATP** has three phosphate groups. - **ADP** has two phosphate groups. - **Formation from ATP to ADP:** When ATP loses a phosphate group, it becomes ADP. Mark the box under ADP. - **Formation from ADP to ATP:** When ADP gains a phosphate group, it becomes ATP. Mark the box under ATP.This understanding is crucial for learning about cellular respiration and energy cycles in biology.

ATP (Adenosine triphosphate) is an important molecule of the cell. The energy of the cell is stored in the form of ATP. ATP is mainly composed of three different components: Adenosine (nitrogenous base), Ribose sugar, Phosphate group. ATP is also used to performed many different biological functions: 1) Used as a source of energy 2) Used for signal transduction performed phosphorylation and dephosphorization of the kinase enzymes of the cell. 3) Part of the DNA (genetic material of the cell) Answer for question 13: This new compound with one fewer phosphate group is called adenosine diphosphate (ADP). What does the prefix "di" means? Answer: Prefix "di" means two phosphate groups. ATP molecule has a three phosphate groups hence its referred as a adenosine triphosphate, if we remove one phosphate from ATP, Adenosine diphosphate (ADP) will formed with two phosphate molecules. Answer for question 14: ATP ADP Number of ribose molecules 1 1 Number of adenine molecules 1 1 Number of phosphate molecules 3 2 Which one is formed when ATP loses a phosphate group? Mark only one box ADP Which one is formed when ADP gains a phosphate group? Mark only one box ATP