Biology SAT II POST-EXAM discussion!

<p>yeah.. what was 57?</p>

<p>12when do you have lots of white blood cells
-- Pretty sure it's when you have an infection.
46,47, anymore on this one?Pigmented/albininsm
--I don't remember this question at all, I don't think I even had it...it wasn't on the M section was it?
40, 41, 42?-tree plots - no difference in number of conifers between plot 1 and 2, cedar affected by everything but available nutrients
--I agree.
36which is list effective in growth of the 3 3 3 3 plots of plants - nitrogen alone
Wait...there was a question that asked which was least affective? Man I don't remember that either. I remember the one asking which was the most limiting factor, and that was definitely phosphorus. Think of eutrophication and all that. But I guess that was a different question. Maybe I just didn't spend much time on 36..
22pupa/larva/adult thing There was about 3 questions on this -
31bag with sucrose/water - Not entirely sure on this one, but I believe the water would go INTO the bag. The bag had more solute than the surrounding water, so there was less room for water molecules in the bag, and stuff goes from high to low areas, so the water would go in.</p>

<p>Please correct me if I'm wrong!</p>

<p>the bag with sucrose/water: only water went into the bag (to hypertonic region of higher solute concentration, 10% in bag, 5% outside)</p>

<p>larval adult....the continuous production of juvenile hormone would have led to stagnancy at the pupal stage (or whichever stage at which hormone curve was highest)
and the cessation of molting hormone would have simply prevented further development, i think, and not (sterile moths)</p>

<p>yah they're the same question. sorry for the confusion, i bought up 60 without realizing that it was already on the list.</p>

<p>wow the answers get posted so fast! thanks Consiglieri</p>

<p>Limiting Factor: anything that tends to make it more difficult for a species to live and grow, or reproduce in its environment </p>

<p>I think I remember nitrogen caused less growth than phosphorus</p>

<p>oh yeah, I think 48 on the list no longer applies</p>

<p>recombination is when 2 strands of DNA exchange corresponding sections</p>

<p>No, a limiting factor is something that if it's NOT present, it will limit the organism. Phosphorus caused the most growth, so inversely, not having it would be the most limiting. Am I right? I mean, nitrogen is definitely something plants need too, just phosphorus causes more growth.</p>

<p>malaria is caused by a parasite right?</p>

<p>I just took the bio SAT..and ...I see that I got a TON wrong.
Estimate: about 600</p>

<p>And I want to take it again in october. But I hear that if you take a same subject test twice, that the scores get averaged out. Is this true? Then should I cancel the original one?</p>

<p>ya i just checked, gloaming. you're right.</p>

<p>wouldnt the green light have been the light not absorbed by plants? isnt that what makes their chlorophyll green in the first place?</p>

<p>Yes malaria is caused by mosquitoes=blood sucking parasites, yum : )</p>

<p>seashell
yea.. that's right</p>

<p>for the tree chart thing.. i put only I for that quetsion. it def wasnt cuz of available nutrients, but what about II?</p>

<p>babybogus- I haven't heard of anywhere that averages; all the colleges I checked say they'll take the highest scores. </p>

<p>Seashell80- right, green light is not absorbed; it is reflected</p>

<p>didnt M look at lot easier than E? or is it just me.. cause ia lways thought M was supposed to be the more difficult one</p>

<p>and the answer to the trees thing is cuxz the number isnt changed by the removal of deciduous trees (oaks)</p>

<p>bananagirl- I don't remember that question very clearly; could you elaborate? the question you aren't sure of, that is</p>

<p>updated copy with corrections and additions:</p>

<p>1cuticle - waxy layer on top of plants
2epidermis - outer layer of mammals
3hair - wind flow/heat exchange
4guard cells - control exchange of gases
5transcription - dna to rna
6replication - dna to dna
7translation - trna/mrna to amino acids
8not bony - sharks
9hemophilia - sex linked recessive
10NO ADH - more dilute urine
11testes - have 4 haploid gametes
12when do you have lots of white blood cells - infection
13protozoans go to food - taxis
14algae and fungi difference - algae are photosynthetic/fungi heterotropic
15nonvascular - bryophytes
16nuclear pores - so rna can move in and out
17the AaBBCc combinations - 4?
18test cross - A_ x aa
19releases CO2 - krebs cycle
20glucose to pyruvate - glycolysis
21inverse relationship between heart rate and body size - the only inverse one there lol
22pupa/larva/adult thing - surge in molting hormone<br>
23PCR - makes lots of DNA
24exoskeleton - grasshopers
25endoskeleten lightweight - sparrow
26placental - cows
27Chemical I and II quesaton thing on enzymes - Chemical I and enzymes makes ltos of quantity of products
28Chemical II - inhibitor
29Calatase/hydrogen peroxide - more hydrogen peroxide
30simple sugars added together make complex and simple and complex made of some elements
31bag with sucrose/water - water only goes in
32picture with the circular circulatory system - fish
33dogs lungs most similar too - when O2 taken in, and CO2 out, on the top of the picture
34where the least amount of CO2 is - right after O2 is taken in, right side of picture
35abiotic environment - sunlight, water, soil, minerals, et cetera
36which is list effective in growth of the 3 3 3 3 plots of plants - phosphorus
37which is most effective - nitrogen and phosphorus
38why do we need the no nutrients added data - so we can compare between nutriets added
39which graph is bad - the one WITHOUT the no nutrients added colum, which was A
40, 41, 42?-tree plots - no difference in number of conifers between plot 1 and 2, cedar affected by everything but available nutrients
43,44,45pediegree chart of hemophilia - all the square blacks were xry, all the circle white where xRxr or xRxR, all the circle black where xrxr
46Pigmented/albininsm- oldest child Aa
47Pigmented/albinism- father is Aa
48pupa/larva/adult thing- increase in larva
49waves that plants dont use - green
50waves that insects and blah can detect and humans cant - uV
51secondary structure of enzymes - hydrogen bonds
52which one isnt a chromosomal mutation - synapsis (this is when tetrads join together)
52cytocrome c comparisons - amino acid amount
53what does chlorophyll do - absorb photons of light
54what do sexual reproduction species undergo - meiosis
55why is sexual reproduction good - genetic variabiltiy
56difference between prokaryoes and eukaryotes - prokaroyes dont have a nucleus, all they got is a cell wall/membrane, ribosomes, and dna
57all things do not breath through gills and lungs, some breath with simple diffusion
58trophic level biomass - decreases cuz of food energy converted to heat energy
59waters property for transport in trunk of trees - cohesion
60characeteric of all respiratory stuff - moist membrane for gas exchange
61oxidation reduction - gives electrons off to acceptros? i hope to god this one isnt ATP stuff, cuz i was debating between the two..
62red green color blindness - sex linked recessive
63acid rain- sulfur dioxides
64related to rat - squirrel
65snakes use infrared
66highest energy humans can see - violet
67placenta - not used to convey nerse impluses
68farmer bull/cow question - bull was heterozygous, farmer was cheated
69meiosis in higher plants produce - spores
70cell cycle - 40 hours
71pupa/larva/adult thing-dev stops at pupal stage
72malaria - caused by parasite
73recombination - 2 dna strands share info</p>

<p>=) 7 more!</p>