AP Biology Fall Final Exam Review 1. What are the major components of RNA vs. DNA? 2. What types of molecules have polar covalent bonds? 3. Explain the process of water traveling from the roots of the plant through the vascular tissue. 4. How many bonds can Carbon form, what kinds of bonds does it tend to form, what structures can those bonds form? 5. Define the following terms Lipids, Peptide bonds, alpha helix, unsaturated fatty acids, cellulose 6. Explain the process of dehydration synthesis. 7. Explain the process of hydrolysis. 8. An organic compound that is composed of carbon, hydrogen, and oxygen in a 1:2:1 ratio is known as? 9. Which of the macromolecules could be structural parts of the cell, enzymes, or involved in cell movement or communication? 10. Which macromolecule is the main component of all cell membranes? 11. What are the emergent properties of water? 12. If a pH of a solution is decreased from 7 to 6, what does that mean in terms of H+ and OH- concentrations? 13. What are the major components of an amino acid? Draw one. 14. What are the four levels of protein structure? Describe their differences. 15. Define the following terms: Peroxisomes, Golgi Apparatus, Lysosome, Endoplasmic Reticulum, Mitochondria. 16. Why does a denatured protein no longer function normally? 17. What parts of a polypeptide participate in the bonds that hold together secondary structure? Tertiary Structure? 18. Define the following terms/explain: Allosteric Interactions,Feedback Inhibition,Competitive Inhibitor, NonCompetitive Inhibitor 19. Review hypo and hypertonic. What way will water move into a cell based on what environment it is in? Why? 20. Compare and contrast eukaryotic and prokaryotic cells. What features are unique to each? 21. Cell signaling pathways are very similar in prokaryotes and throughout eukaryotes. What does this suggest? 22. Cell signaling through hormones differs based on whether the hormone is a peptide hormone (protein base) or a steroid (lipid base). Which type of hormone do you think can penetrate the cell membrane directly? Remember, like dissolves like. 23. Hormones can even be gaseous, such as with ethylene. Ethylene is a gaseous hormone used by plants to progress in the ripening process. If you put bananas or apples in a closed bag, they will ripen faster because the ethylene gas is trapped and causes the fruit’s cells to make all the changes involved with ripening: Chlorophyll is broken down, causing color changes; starches are converted into sugars, making the fruit sweet and less mealy; acids are broken down, causing it to taste less sour; and pectin is broken down, making it softer. 24. The picture below shows a special kind of cell communication – synaptic signaling between neurons. What is the role of the cell body, dendrites, axon, and what happens in the synapse? What is the sequence of signal transmission? Where does it start, where does it go? 25. How is a message sent from one neuron to the next if there are gaps between them (synapses)? 26. Label the diagrams below: 29. Use the diagram to label and identify the two broad stages of photosynthesis. Identify: K, Na, plasma membrane, cytosol. Would this axon be in the midst of an action potential or at rest? How do you know? 27. How do you think a cell performing cellular respiration rids itself of the resulting CO2? 28. What role does oxygen play in cell respiration? What will be greater in cells with plenty of oxygen? What does this have to do with ETC and oxidative phosphorylation? 30. Why are leaves green? 31. What happens to chlorophyll when it is hit by light? How does this relate to potential energy? 32. Compare AND contrast chemiosmosis in mitochondria and chloroplasts. 33. Explain the purpose of the Light Dependent reaction and the Calvin cycle. Why are the two processes interdependent? 34. Describe each step listed below: a. Carbon fixation b. Reduction c. Regeneration 35. What is the enzyme that starts the Calvin cycle and how does it work? 36. Why is photorespiration such a “waste”? 37. What strategies do C4 and CAM plants have to deal with photorespiration? 38. Use the following terms correctly in a sentence: redox reactions, oxidation, reduction, reducing agent and oxidizing agent. 39. Why is being “reduced” equivalent to having a greater potential energy? 40. In cellular respiration, what is being oxidized and what is being reduced? 41. Explain the use of coenzymes NAD+ and FAD+ 42. Why is having an electron transport chain an advantage to living systems? 43. What are the three stages of aerobic cellular respiration? 44. What is substrate-level phosphorylation? 45. Describe the transition reaction converting pyruvate to acetyl coA. 46. Regarding the Kreb’ cycle, where does the C “go” that is removed? 47. What is happening when NAD+ NADH + H+? 48. What is oxidative phosphorylation and where does it occur during respiration? 49. What is chemiosmosis and apply it to the diagram below. Helpful hints: formula to calculate surface area of a sphere is 4ᴨr2 pH is on a –log scale, so the more the H+ ions, the lower the pH (acid). The difference in H+ ions between pH 1 and pH 3 is 100x