Carbon-Based Molecules. Part 3: Hydrogen Bonds and Nucleic Acids. Objectives. SWBAT describe and compare and contrast the functions and structures of the carbon-based molecules: carbohydrates, lipids, proteins, and nucleic acids. Starter.
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Part 3: Hydrogen Bonds and Nucleic Acids
The red liquid is water, it is curved down because of greater adhesion than cohesion.
The mercury on the left shows greater cohesion – evidenced by the upward curve of the mercury in the test tube.
nitrogen-containing molecule,called a base
A phosphate group
This shows the two strands of DNA that connect, via hydrogen bonds, and twist to form a double helix. RNA is single stranded.