Life on Earth: At a Glance

Synthesizing Organic Molecules: A Modular Approach: Biological molecules are joined together or broken apart by adding or removing water.

The Principal Types of Biological Molecules
Carbohydrates are sugars and starches.
Lipids are diverse molecules that are insoluble in water.
Proteins play many roles in living organisms.
Nucleic acids form DNA and RNA, the molecules of heredity.
The Principal Types of Biological Molecules: Carbohydrates are sugars and starches.
Lipids are diverse molecules that are insoluble in water.
Proteins play many roles in living organisms.
Nucleic acids form DNA and RNA, the molecules of heredity.; Lipids are diverse molecules that are insoluble in water.
Proteins play many roles in living organisms.
Nucleic acids form DNA and RNA, the molecules of heredity.; Proteins play many roles in living organisms.
Nucleic acids form DNA and RNA, the molecules of heredity.; Nucleic acids form DNA and RNA, the molecules of heredity.

Last Update - July 25, 1997