Chemical Basics of Life

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Chapter: Anatomy and Physiology for Health Professionals: Levels of Organization : Chemical Basics of Life

Chemistry is the science that deals with the structure of matter, and the study of the human body begins with chemistry.


Chemical Basics of Life

After studying this chapter, readers should be able to

1. Describe the relationships between atoms and molecules.

2. Explain chemical bonds.

3. Describe how an atomic number is determined.

4. List the major groups of inorganic chemicals common in cells.

5. Explain acids, bases, and buffers.

6. Define the characteristics of lipids and proteins.

7. Define pH.

8. Describe the functions of various types of organic chemicals in cells.

9. List four examples of steroid molecules.

10. Explain nucleic acids.

Overview

Chemistry is the science that deals with the structure of matter, and the study of the human body begins with chemistry. It is essential for other sci-ences, including physiology, pathology, pharma-cology, and microbiology. Life is based on atomic, molecular, and chemical interactions. Each cell of the body contains organelles made up of macro-molecules, and the cells then compose tissues and organs. The chemical basics of life require the inter-actions of all these components.

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