AP BIOLOGY REVIEW- Final test

Apuntes

AP BIOLOGY REVIEW- Final test Name: #: Date: 1. How does the polarity of water molecules enable hydrogen bonding? 2. Explain each property of water. 3. Which property of water is primarily responsible for the ability of trees to draw water up from the roots to the leaves? 4. Explain the difference between pyrimidine and purine. 5. What does the pH scale measure, and what is its range? 6. Which statement about water is correct? a) Ice is less dense than water b) Ice forms on top and sinks to the bottom of lakes and rivers c) Bodies of water freeze from the bottom up. d) Water molecules in ice have a disorganized, irregular arrangement. 7. Water readily dissolves compounds that are a) hydrophobic molecules b) Solvent c) Nonpolar d) Hydrophilic 8. Write 3 similarities and differences between DNA and RNA 9. What is electronegativity? 10. Explain what polarity is. 11. Explain why organic molecules like proteins act as solutes in water. 12. How are the 20 common amino acids classified based on their chemical properties? Explain the characteristics and interactions of each group. 13. Why is the lipid membrane an effective barrier between a cel...