***OCTOBER 2013 - Biology E/M***

<p>I put sensory nerves for the gall bladder question. I think that if you were trying to test whether or not a signal affected bile production, you’d have to test the sensory nerves…cutting the motor nerves means it couldn’t function at all right?
Do you remember what questions you put rRNA for? I think I put it twice as well but I’m a bit foggy on that one.</p>

<p>It’s prophase coz prophase in when the microtubules are forming</p>

<p>I put rRNA for which one will allow species to be place in animals, plants, or bacteria (0, 6, and 18 differences)
I put rRNA for the first one in that lab, can’t remember what it was.
for that same lab, I put one of the genes that differed by 3 base pairs with the other human for the 2nd question. It may have started with G.
I put prophase, but I wasn’t sure since in anaphase microtubules still form to stretch the cells apart. For fertilizer I put inorganic compounds.
I put extracellular matrix for epithelial tissue</p>

<p>Ah, I remember those now. I put rRNA for both of them also…phew.</p>

<p>The first one with rRNA was which one has the least differences with Human 1</p>

<p>It may be sensory for gallbladder. I may have been overthinking. </p>

<p>I’m just thinking out loud - please correct or confirm anything I say:
Sheep and wolf not at same trophic level.
Deer primary consumer
Fungus for chitin, spore, heterotroph
Marsupials diverged after being separated due to shifting continents
Differentiated cells can be used to create clone
Cloning does not increase genetic diversity
Plant roots intertwined so white plant get nutrients
3 and 4 for stamens and pistils
2 and 6 for photosynthesis</p>

<p>Yeah does anyone know what the curve’s like? Roughly how much for at least a 700?</p>

<p>Phosphate is a definite for the rock question in the beginning.
Bacteria produces ammonia in the beginning.
Does anybody know about the “fine-filter” question involving healthy tomato plant. I was between virus and bacteria and put bacteria as a guess… why was this so hard.</p>

<p>SATnotACT, how did you get that for the plant labeling? For the 2 and 6 answer, one was a picture of a leaf and the other was a picture of another leaf?</p>

<p>I think it was virus. Look up plant virus on wikipedia. There is an experiment just like the one in the question.</p>

<p>Yes both leaves.
3 and 4 for the flowery pictures.</p>

<p>Ok for the gallbladder one I put blood circulation… The other ones didn’t make any sense. The motor neurons are for voluntary skeletal muscle movement and sensory neurons are located on peripheral nerves on tips of fingers and stuff.
The gal bladder secretes bile based on the endocrine system, so if a scientist tested the blood circulation he would see there are hormones being released from the pituitary glands meaning it is not a nerve impulse DIRECTLY activating the gal bladder.</p>

<p>I got the same as @SATnotACT for the labeling. And for everything else in that post
Viruses are much much much smaller.</p>

<p>I think SATnotACT is right about the tomato.</p>

<p>[Plant</a> virus - Wikipedia, the free encyclopedia](<a href=“http://en.wikipedia.org/wiki/Plant_virus]Plant”>Plant virus - Wikipedia)</p>

<p>Control+f “though sap”</p>

<p>it talks about virus through sap just just like on today’s test… I think it required outside knowledge.</p>

<p>No the tomato one was fair game because viruses are much smaller than bacteria or protests. The mosaic tobacco leaves is a experiment everyone learns in ap bio about how scientists found out that viruses affected trees not bacteria</p>

<p>Also for the pine trees I put the slope was too steep for pine trees on the south slope. On the south slope were LOW growing bushes and on the north slope were pine trees (which are obviously tall). It was the only one that made sense if on the south slope there were only plants that didn’t grow that tall.</p>

<p>Then I believe it must have been a difference in interpretation of “fine filter”, is there an official scientific definition for this? A fine filter in the kitchen has very large holes for example.</p>

<p>I had the exact same reasoning for the pine tree question as jy2013.</p>

<p>What do you think a raw of 77 will be on this test? I found it to be much more reasoning based than practice tests I did, but I’m better at reasoning so it worked out. Although I know I missed two specific information questions: one about marsupial and placental mammals and another about epithelial cells. I think for most this bio might have been tough</p>

<p>What concepts/question topics were you guys surprised to see on the test today, if any?</p>

<p>What was the answer to the epithelial, I thought it was cilia. Wait, are subject tests curved to how everybody does? Let’s say theoretically everybody gets a 300. Does that mean everybody gets 800?</p>