December 2010-SAT II Biology E/M

<p>I put coral reef too then when I read whoever’s post about “biome” i was like… NOOOOOOOOOOOOOOOOOOOOOOO…</p>

<p>Does anyone specifically remember? I thought it said something along the lines of ecosystem?</p>

<p>I think it just asked which of the following is the most diverse.</p>

<p>I put coral reef as well.</p>

<p>What was the matching question with the donkey and the mule?</p>

<p>Hybrid between to species</p>

<p>oh i put like engineering or something…</p>

<p>The coral reef is a marine aquatic biome and of the possible choices it was the most diverse. It was the answer.</p>

<p>Bicarbonate is a buffer right?</p>

<p>yes, bicarbonate is a buffer</p>

<p>crap i got -5 or something then…</p>

<p>For the enzyme to denature did you guys put freezing?</p>

<p>did you guys put net movement of water to the solute for the question about diffusion?</p>

<p>this test seems similar to the May 2008 exam, (i took it in 9th grade)</p>

<p>I put 100 degrees for the enzyme denaturing thing. Proteins can be stored by freezing, but extreme heat denatures them. Net movement of water to solute is correct.</p>

<p>I think the answer was Coral Reef since it’s the most diverse and it’s not part of the Benthic biome, it’s neritic!</p>

<p>Anyone know which one wasn’t the Arthropod?</p>

<p>For that one i put the leech, and I agree with the coral reef one. Same with the net movement of water.</p>

<p>i picked temp. decid. oh no…
^yes, i got leech as well (no hard exoskeleton)</p>

<p>But isnt like the human body temperature like around 100?</p>

<p>Lol, no, its close to 100 fahrenheit, but in the test it was celsius.</p>

<p>Bio M
Compiled List (not in order):</p>

<p>1,2 - Mitochondria
3,4 - chloroplast/cell membrane
Eye - retina, lens, and ciliary muscles
Horse/Donkey –> Mule = hybrid
Yeast reproduction - asexual reproduction
some other reproduction scenario…
Genetic variance of sexual reproduction - crossing-over and recombination
Prokaryotes/Eukaryotes share which organelle - ribosomes
Plant drawing - palisade mesophyll (site of phoyosynth.), Stomata, and cuticle
Phloem question - choices were cambium, xylem cells?, and companion cells. I think i put companion cells, but that’s not right IMO.
Not part of arthropods - leeches
Catss/Dogs same class - same phylum
Plant research - during day produces more O2
Which of the following is true - O2 is by-product of photosynthesis
19. Darwin’s natural selection is most evident in <em>populations</em>
Estrogen - I, II, and III
Implantation of embryo location - Uterus
Clumped population - competition or ans. choice C
Allele frequency would be least affected by <em>random mating</em>. You have to realize that the other choices are violations of the HWP
Genetics - 3:1 ratio, so Bb x Bb
Genetics - 100 % of purple will be Bb
Lichen - could be a mutualist/parasite but best answer is probably <em>mutualist</em>
Order of fossil evidence - IMO this question was ridiculously hard, so i omitted this one. I think the answer had dinosaurs appearing last.
Primates - most closely related to primates
Convergent evolution - whale and shark since they are derived from same ancestor
Enzyme - most denatured at 100 degrees centigrade
Least likely blood type of child - Type O
ABO types - agglutination rxns according to what im hearing, but might be hemoglobin structure
Most diverse biome - Temp. Decid. Forest since coral reef is not a biome, but rather an ecosystem. The ev. for coral reef is also just not sufficient. The article doesn’t even mention the word biome once.
Tundra - can’t grow deeproots
Energy from phytoplankton to third trophic level - 10% –> 1% –> <em>.1%</em>
Bicarbonate ions in the <em>blood</em> - carry carbon
Cell division order - begins w/ interphase (undifferentiable chromosomes) and end with two cells undergoing division again (cell plate fragmented slightly)
Cell divison - Plant since cell plate
Chromosome attached at one end - ans. choice B, i think?
Vine data - confirms hypothesis
Vine graph - the control grew more steeply than vine
Mice Litter - 85/120 = 80%,
Mice Litter - delayed birth –> death
Mice :Litter - must be from same litter
Bacterial Protein Synth. Drawing - Ribosome was 6
Bacterial Protein Synth. Drawing - hydrogen bonds were 2
Bacterial Protein Synth. Drawing - mRNA was 5
Muscle - electrochemical signal so either electrical or chemical. IMO it’s electrical because an action potential is always electrical
Changes in environment detected first by - Nervous system
ATP - hydrolysis to ADP + i stimulates myosin head
Amino Acid drawing - Amino Acid
peptide bond would occur - @ 2 i believe since it has a nitrogen that is only bonded to carbon
By-product - CO2 (C and double bonded O)
Highest rate of photosynthesis - violet
Aquatic algae - low amount of chlorophyll is best ans. since it assumes the least.
Semipermeable membrane - H20 flows back and forth
Stained DNA - Chromosomes bolded</p>

<p>Why is clumped population due to competition? Wouldn’t competition make it harder for organisms to survive in large groups? I thought increase in mating chances made more sense.</p>

<p>Good question, but a clumped population is a result of a lack of resources, and a lack of resources leads to increased competition for survival.</p>