Using water to protect plants during overnight freeze
Explain how the following types of bonds are formed, and give an example of each:
3. In agricultural areas, farmers pay close attention to the weather forecast. Right before a predicted overnight freeze, farmers spray water on crops to protect the plants. Use the properties of water to explain how this works. Be sure to mention why hydrogen bonds are responsible for this phenomenon.
4. The following are pH values: cola-2; orange juice-3; beer-4; coffee-5; human blood-7.4. Which of these liquids has the highest concentration of OH-?
5.List the four major classes or groups of biologically important macromolecules and explain one reason for the importance of each.
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6. Explain what denaturing of a protein is and what conditions might cause it.
7. Describe three differences between DNA and RNA.
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