Biology 20 Final Review Questions (PDF)

**Biology 20 Final Assorted Review Questions** 1. What are the two laws of thermodynamics? 2. What is the difference between a photosynthetic organism and a chemosynthetic organism? Where can these be found? 3. Briefly describe photosynthesis 4. Briefly describe cellular respiration 5....

**Biology 20 Final Assorted Review Questions** 1. What are the two laws of thermodynamics? 2. What is the difference between a photosynthetic organism and a chemosynthetic organism? Where can these be found? 3. Briefly describe photosynthesis 4. Briefly describe cellular respiration 5. What is denitrification? What do nitrogen fixing bacteria do? 6. What is the difference between a food chain and a food web? 7. Describe the different trophic levels of a food chain 8. What is Darwin's theory of evolution? 9. What is the difference between an analogous organ and a homologous organ? 10. What is natural selection? What is artificial selection? 11. How do mutations lead to variation among species? 12. What is the allopatric speciation? 13. What is an ecosystem? 14. Explain the processes in the electron transport chain and chemiosmosis 15. Describe the Calvin cycle 16. What is glycolysis and where does glycolysis occur? 17. What is the final electron acceptor? 18. What is it called when a macrophage engulfs bacteria? 19. Draw out of the ascending limb of the loop of henle and draw where water, sodium, potassium and chlorine do in and out by passive and active transport. 20. What is the sliding filament model? What are the roles of actin and myosin? 21. What does the pancreas do to help with digestion? 22. What does the liver do to help with digestion? 23. What does the gall bladder do? 24. What does salivary amylase do? 25. Why do we have stomach acid? 26. What is the role of pepsin? 27. What is the role of trypsin? How is it activated? 28. What is the difference between an artery a vein, and a capillary? 29. When our bodies heat up what can we do to cool it down naturally? 30. Describe the different blood types. What can't everyone receive any kind of blood transfusion? 31. Why do we have an excretory system? 32. Where is water reabsorbed in our excretory system? 33. What effects enzyme activity? 34. What are the functions of the small intestine? What are the functions of the large intestine? 35. What are alveoli and why do we need them? 36. Draw out the steps in the water cycle 37. Draw out the steps in the nitrogen cycle 38. Draw out the steps of the carbon cycle 39. Draw out the steps of the phosphorous cycle 40. Why are algal blooms bad for a lake? How are they caused? 41. Define the following: a. Organism b. Community c. Population d. Ecosystem e. Biome f. Species g. Biogeochemical cycles h. Carnivore i. Herbivore j. Producer k. Omnivore l. Autotroph m. Heterotroph n. Biodiversity 42. Briefly describe the following Biomes o. Taiga p. Tundra q. Grassland r. Deciduous Forest 43. What are the parts of the chloroplast and what do they do? 44. What is photolysis? 45. What is the difference between anaerobic respiration and aerobic respiration? 46. Why do we need bicarbonate ions in our digestive system? 47. What do carbohydrates, fats and proteins break down into when they go through the digestive system? 48. What happens when you breath in? 49. What is lymph? 50. What are platelets and why do we need them?