ATP and Cellular Work
12th Grade•60 minutes•AP Biology
Learning Objective
ATP powers cellular work by coupling exergonic reactions to endergonic reactions.
Key Concepts
ATP, or adenosine triphosphate, is the energy coinage of all life on our planet.
ATP consists of adenine, a ribose sugar, and three phosphate groups.
When ATP is hydrolyzed, it becomes ADP + Pᵢ, releasing energy that can be used for cellular work such as active transport and muscle contraction.
Practice Questions
This lesson includes 12 practice questions to reinforce learning.
View questions preview
1. What are the three main components of an ATP molecule?
2. Which of the following best describes the process by which ATP releases energy?
3. Explain the relationship between ATP, ADP, and inorganic phosphate (Pi).
...and 9 more questions
Educational Video
ATP: Adenosine Triphosphate
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