O

Phosphates

Phosphates

Adenosine

Figure 4.7

An ATP molecule consists of an adenine, a ribose, and three phosphates. The wavy lines connecting the last two phosphates represent high-energy chemical bonds. When broken, these bonds provide energy for metabolic processes.

Shier-Butler-Lewis: I I. Levels of Organization I 4. Cellular Metabolism I I © The McGraw-Hill

Human Anatomy and Companies, 2001

Physiology, Ninth Edition

Energy captured from cellular respiration

Energy captured from cellular respiration

Energy released and utilized by metabolic reactions

Essentials of Human Physiology

Essentials of Human Physiology

This ebook provides an introductory explanation of the workings of the human body, with an effort to draw connections between the body systems and explain their interdependencies. A framework for the book is homeostasis and how the body maintains balance within each system. This is intended as a first introduction to physiology for a college-level course.

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