End of Semester Review

1. End of Semester Review Fall 2011

2. Round 1 Ecology, biochemistry

3. What is immigration?

4. What is emigration?

5. Who helped disprove the idea of spontaneous generation by demonstrating that maggots come from fly eggs and NOT from meat? • A) Francesco Redi • B) John Needham • C) LazzaroSpallanzi • D) Louis Pasteur

6. Answer • A) Francesco Redi

7. A hospital patient had a serious bacterial infection that required treatment with strong anitbiotics. The patient recovered from the infection, but experienced side effects, including oral fungal infections and digestive problems. What is the most probable reason for the side effects? • A) The patient experienced an allergic reaction to the antibiotics • B) The patient had not fully recovered from the infection. • C) The anitbiotic killed both harmful and beneficial bacteria • D) The anitbiotic encouraged an overgrowth of beneficial bacteria

8. Answer • C) The anitbiotic killed both harmful and beneficial bacteria

9. Draw a Logistic Growth curve.

10. When a new volcanic island forms, the pioneer species is the first species to successfully inhabit the island. Which organism is the most likely candidate for a pioneer species? • A) A seagull hatched from an egg laid on the island • B) A palm tree grown from a coconut that washed onto shore • C) Algae spores deposited on rocks by the wind • D) Insects larvae carried on a piece of driftwood

11. Answer • C) Algae spores deposited on rocks by the wind

12. Louise places 1 bacterium in a Petri dish at time 0. The population increases exponetially, doubling every hour, and there are no limiting factors. How many bacteria will be in the Petri dish after 6 hrs ? • A) 6 • B) 16 • C) 32 • D) 64

13. D) 64

14. A flagellated protozoan lives within the intestines of a termite and helps it digest wood. What type of relationship most likely exists between the protozoan and the termite? • A) competitive • B) Mutualistic • C) Parasitic • D) Predatory

15. Answer • B) Mutualistic

16. Draw an exponetial growth curve.

17. Which level of organization best describes a group of living organisms and their abiotic environment? • A) community • B) ecosystem • C) niche • D) population

18. B) ecosystem

19. Which path best illustrates one way energy travels through a forest ecosystem consisting of mouse owl, plant, snake, and sun? • A) SunPlantOwlSnakeMouse • B) SunPlantMouseSnakeOwl • C) PlantSunSnakeOwlMouse • D) MouseOwlSnakePlantSun

20. Anwswer • B) SunPlantMouseSnakeOwl

22. Answer • B

23. What is the maximum number of covalent bonds that can form between a single carbon atom and 1 or more hydrogen atoms? • A) 1 • B) 2 • C) 3 • D) 4

24. Answer • D) 4

25. Jenna’s favorite breakfast food, papaya, contains significant amounts of the enzyme papain (a protease). What substance does papain help digest? • A) carbohydrates • B) fatty acids • C) nucleic acids • D) proteins

26. Answer • D) proteins

27. Breaking which type of bond would require the most energy? • A) covalent • B) Electrostatic • C) Hydrogen • D) intermolecular

28. Answer • A) Covlaent

29. What are the four Macromolecules?

30. Answer • Lipids • Carbohydrates • Proteinds • Nucleic acids

31. Which solution has the greatest concentration of hydroxide ions (OH-)? • A) Urine (pH 6.0) • B) Rainwater (pH 5.5) • C) Tomato (pH 4.0) • D) Gastric juice (pH 2.0)

32. A) Urine (pH 6.0)

33. How do enzyme speed up chemical reactions? • A) By reducing activation energy • B) By reducing energy produced by the reaction • C) By increasing activation energy • D) By increasing energy producing by the reaction

34. Answer • A) By reducing activation energy

35. Round 2 Cell structure and function, osmosis and diffusion respiration and photosynthesis,

36. Breathing heavily after running a race is your bodies way of : • A) Making more ATP • B)Repaying the oxygen debt • C) restarting glycolysis • D) recharging the electron transport chain

37. Answer • B) Repaying an oxygen debt http://files.myopera.com/sandrazurcher/blog/WOC%20sprint2_Will%20Smith.jpg

38. Unlike photosythesis, cellular respiration occurs in: • A) animal cells only • B) Plant cells only • C) All but plant cells • D) All Eukaryotic cells

39. Answer • D) ALL Eukaryotic cells

40. The Starting molecule for Kreb Cycle is: • A) Glucose • B)NADH • C) Pyruvic acid • D) Coenzyme A

41. Answer • C) Pyruvic Acid http://4.bp.blogspot.com/_gfJNTQHDtXs/TGRQcZR4eGI/AAAAAAAAAkI/5h-eWnf3oz4/s640/tropical_island_screensaver1.jpg

42. Why do most plants appear green because chlorophyll?

43. Answer • Because they do not absorb green light they reflect it.

44. Plant cells contain both a cell wall and a cell membrane. What is the composition of the cell wall and where is it located in relation to the cell membrane?

45. Answer • Cellulose, outside of the cell membrane

46. The light-collecting units of a chloroplast are the:

47. Answers: Photosystems

48. Energy is released from ATP when: • A) a phosphate group is added • B) adenine bonds to ribose • C) ATP is exposed to sunlight • D) a phosphate group is removed

49. Answer • D) A phosphate group is removed

50. A scienctist add an specific antibody to the actin protein to a prepared culture of macrophages. The macrophages exhibit active movement before, but not after, treatment. What is the most accurate conclusion about the function of actin? • A) Actindepolymerizesmircrotublar arrays • B) Actin plays a role in the function of pseudopodia • C) Actin disrupts cellular activities in the cytoskeleton • D) Actin guides the movement of chromosomes in macrophages.