June 2012 SAT II Biology

<p>Haha well… I’m azn ?? lol I know some geniuses so Im just like… a typical azn maybe?? I mean ppl dont take as much classes like me xD but yea… And piano I have couple of friends doing Music Theory It’s not too difficult compared to those royal british exams I think. Those ones get pretty hard =.= And I also think number 45 had to do with another cross It would probably be like 25% since they usually ask what is the percentage of the recessive gene blah blah they always asked that question so maybe?? And gomdorri What are you self studying?? And Lanayru that sux :/</p>

<p>Haha aqua not really sometimes I feel inferior to some of my friends :frowning: Math geniuses… military engineer geniuses yea >.></p>

<p>What APs are you guys taking for self study.In my school only one AP offers in Sophomore.</p>

<p>Daesung: This year I’m self-studying macro and microeconomics, human geography, environmental science, chemistry, and technically Calc BC because my AP teacher doesn’t teach us anything.</p>

<p>But seriously, for anyone who wants to self-study an easy and fun AP, psych is the way to go. I love psychology, so it was a breeze to study, and the information you have to learn isn’t that dense. I only studied seriously for about two days before the exam, and I finished the MC so fast that I had time to double and triple check my work. XD My cousin took the AP psych exam as well and he said that it was really easy as well.</p>

<p>@daesung
lol, I still managed to convince my teacher to let me take AP Env Sci for sophomore year (only like 5 people did that… rather exclusive and none of the teachers really told you that you could or not). now the over-competitive sophomores take over my AP bio class :P</p>

<p>@gomdorri
self-studying sounds fun! there are way too many APs at my school to warrant any self studying. people’d rather take the class and get a GPA bonus (+1.0, so having As in all APs = 5.0) and NOT learn a thing!</p>

<p>Haha gomdorri Same here. Im self studying macro and micro econ, human geography, art history, cal bC and im doing independent study for ap physics C E/M and mech. Also Im taking 3 other ap classes so yep :slight_smile: Im taking the psych class jr year and I want to be a neurologist and all so its an interesting class Holding back myself from self studying it and taking the exam >.<</p>

<p>@Lanayru Isn’t APES more of like a detailed part of ecology?? I was thinking of taking it my soph year since I took ap bio already but Im just saving it for jr year :slight_smile: AND THE +1 IS AMAZING :D</p>

<p>@daesung
yeah, but with lots of random crap mixed in. I learned about nuclear reactors in APES :stuck_out_tongue: There was more chemistry in APES than in Bio (where the most math you do are genetic crosses and hardy-weinberg equilibrium.)</p>

<p>sat bio was **** easy if you took ap bio exam in may. having self studied the specifics and having none of it be on the ap exam almost made me regret wasting 2 months of my life, yet that is what 80% of the SAT bio was made up of.</p>

<p>I’ve combed through the thread for any possible answers we missed and found a few. More have been added to each section. Some of the questions in the M section have been removed because they were repeats or belonged in the general section. As of now, here’s what’s left to find. I don’t believe there are any more answers missing that have been mentioned in the thread:</p>

<p>General – 3 Questions
E – 3 Questions
M – 2 Questions</p>

<p>General:

  1. mitochondrion
  2. mitochondrion
  3. chloroplast
  4. cell membrane
  5. retina
  6. iris
  7. lens
  8. Rat Lab: 80% of offspring at day 21
  9. Rat Lab: mothers’ diets must be same
  10. Rat Lab: prolonged birth decreases chances of offspring survival
  11. evolutionary order of fossils: starfish, shark, dinosaur, bird, whale
  12. convergent evolution: shark and whale
  13. most closely related to primates: whale
  14. uric acid: bird and dinosaur
  15. Population Graphs: humans are exponential
  16. Population Graphs: deer that reach a carrying capacity are a steady increase, then horizontal line
  17. Population Graphs: insects are bell curve
  18. Types of Offspring: purebred chicken had same coat color
  19. Types of Offspring: mule was hybrid
  20. Types of Offspring: yeast was asexual
  21. abnormal chromosome separation: <_> (telomeres together)
  22. estrogen question: does all 3 things (Answer E)
  23. primary cause of global warming: accumulation of greenhouse gases
  24. not part of arthropods: leeches
  25. lichens: mutualism
  26. tundra: cannot grow roots into soil
  27. most diverse biome: coral reef
  28. clumped population: due to mating
  29. neuromuscular junction: chemical signals
  30. implantation of embryo: lining of uterus
  31. cats and dogs: same phylum
  32. organelle found in both prokaryotes and eukaryotes: ribosomes
  33. Vine Lab: does not confirm hypothesis
  34. Vine Lab: conclusion is that vines are dependent on trees for support and nutrients
  35. Vine Lab: graph that starts with experimental faster than control but soon turns into control much faster than experimental (Answer C)
  36. Leaf Diagram: most photosynthetic were the palisade mesophyll cells
  37. Leaf Diagram: allows exchange of gases was guard cells (stomata)
  38. Leaf Diagram: allows transport was vascular bundle (one that looked like veins)
  39. Transcription/Translation: hydrogen bond was number 2
  40. Transcription/Translation: mRNA was number 4
  41. Transcription/Translation: the ribosome was number 5
  42. Transcription/Translation: contains both RNA and protein is ribosome (number 5)
  43. Chart with Crosses: Bb x Bb is only Cross I (Answer A)
  44. Chart with Crosses: offspring are 100% Bb on one cross
  45. Chart with Crosses: ???
  46. bicarbonate ion: acts as buffer
  47. least possible offspring: O blood type
  48. the thyroid releasing hormones: negative feedback
  49. origin of life came from mixing amino acids in ancient, Earth-like atmosphere
  50. Darwin’s theory of evolution based on populations
  51. genetic variance of sexual reproduction: crossing-over produces variation in phenotype
  52. plant scenario: the plant produces more O2 then it uses in respiration
  53. allele frequency least affected by random mating
  54. enzyme denatured at 100 degrees C
  55. third trophic level would have 0.1% of energy
  56. dehydration reactions produce polymers
  57. O2 is a byproduct of photosynthesis</p>

<p>E:

  1. sends blood throughout body: aorta
  2. pumps blood to lungs through pulmonary arteries: right ventricle
  3. difference between energy produced by producers and energy taken up by producers and consumers: net community production
  4. most net primary production (most energy after accounting for respiration): alfalfa field (the biome in the first column)
  5. alfalfa field’s net primary production: 9200
  6. two areas without net community production: areas with 0 on the bottom row, or the two columns that were on the right (tropical rain forest and chaparral)
  7. difference between one row and another row: net primary production and heterotroph respiration
  8. specialization of tissue occurs during gastrulation
  9. spleen filters out erythrocytes in blood
  10. jointed appendages and has 3 pairs of legs: insects
  11. mice in an environment with very dark or very white areas: disruptive selection
  12. birds’ beaks: stabilizing selection
  13. cheetah with little variability underwent bottleneck effect long ago
  14. yeast: asexual reproduction
  15. yeast accumulating would lead to lack of O2 as they used it up for respiration
  16. yeast population after 48 hours: 5000
  17. buildup of cholesterol: atherosclerosis </p>

<p>M:

  1. changing blood type would not affect hemoglobin shape
  2. 900 nucleotides for 300 codons
  3. ATP changes the shape of myosin, and ATP becomes ADP
  4. nervous system responds first
  5. restriction enzymes work by joining segments of complementary DNA
  6. companion cells contain organelles not found in xylem or phloem
  7. glycogen is a short-term energy storage molecule
  8. distilled water goes to the left toward the solution
  9. Cell Division: order of cell division was Answer E
  10. Cell Division: using a molecule that is more effective in highlighting DNA: DNA would be bolded (Answer A)
  11. Cell Division: cell was a plant cell
  12. Cell Division: ??? (perhaps anaphase—know you had to identify one of the phases)
  13. Pigments: 400-450 is most effective
  14. Pigments: violet is most effective
  15. Pigments: plant exclusively exposed to green light would not have oxygen-seeking bacteria
  16. Dipeptide: result of amino acids linked together
  17. Dipeptide: new peptide bond formed at 5 (very right of diagram)
  18. Dipeptide: H2O released when formed</p>

<p>gomdorri, our schools are very similar :3 </p>

<p>daesung, I’m asian too xD But STILL, that’s insane. o_o; </p>

<p>Wow, Piano! Thanks so much for spending so much time compiling everything :D</p>

<p>Lol no problem! :slight_smile: I didn’t do that much at all. I used your list to start out with and just corrected it by pulling answers from previous posts.
Hopefully all of the ones I listed are right. If any are wrong or don’t make sense (some of E might not because I tried making sense of the questions even though I didn’t take that test :D), I’ll correct them.</p>

<p>And daesung is a genius!</p>

<p>EDIT: Whoops, 5000 is wrong; it’s supposed to be 50,000 for the yeast population. Sorry -__-
It won’t let me edit that post, so I won’t repost it until people find more corrections (if there are any). Sorry, lol.</p>

<p>Hang on, I think the denatured enzyme at 100C is M, not general… :3 someone confirm? B/c I don’t remember answering that, but the test was almost a week ago, so ><;</p>

<p>@Aquawater98 Sorry, I think you might be right, but I have no idea at this point. -__-
Yes, it would help if others could look that over. Also, is there anything wrong with the list that you can tell?
So if everyone can look over the list and post the mistakes they find, that would help tremendously. I can’t edit the post so I’ll post it when there are more corrections. It’s not really worth posting the entire thing until more corrections are found.</p>

<p>Pending Corrections:

  1. 5,000 is actually 50,000
  2. Enzyme denaturing question is in M section</p>

<p>Thanks for your help!</p>

<p>Are 20 in general and 14 in E repeats?</p>

<p>Yes, I assume so. Thank you for pointing these out.
I was looking through, and I thought I saw that there were three questions on yeast in E. Do you remember the third. Here are the first two:
15. yeast accumulating would lead to lack of O2 as they used it up for respiration
16. yeast population after 48 hours: 50,000</p>

<p>If I HAD to guess… I would guess that it asked what type of graph it was, and the answer was exponential. Really, really unsure of this though :/</p>

<p>Haha thx for the flattering words LOL and I think the 100C might be in M but I like forgot everything xD</p>

<p>Of course it’s okay if you don’t remember. Don’t worry :).
I think we’ve sought out enough of the questions, and it’ll probably be impossible to find all them anyway. I’ll go insane trying to remember any more. :smiley:
So once people add any other necessary questions, I’ll repost the list and that’ll probably be about it.</p>