<p>Let's do it like the USH review game. So I'll start off with a question and the next person answers the question and ask a new question.. </p>
<p>What is the final electron acceptor in aerobic respiration?</p>
<p>A. oxygen.</p>
<p>Give an example of operant conditioning.</p>
<p>Pavlov's doggies?</p>
<p>Name the different animal phyla and distinguishing traits?</p>
<p>wait do we have to know different animal phyla and their traits for the AP test? Our class just skimmed through that..</p>
<p>It's not especially important, but there's always 1-5 questions on there about phyla.</p>
<p>A. Porifera-no body symmetry
Cnidaria-no mesoderm, radial symmetry
Platyhelminthes-accoelomate, (flatworms) bilateral symmetry
Nematoda-pseudoceolomate 2 openings
Rotifera-rotifers...idk much about them
Mollusca-coelomate, open circulatory system except Cephalopodas. most have shells
Annelida-close circulatory system, segmented worms
Arthopods-open circulatory system, joint appendages
Echinodermata- deuterosomes,
Chordata-notochord, dorsal hollow nerve chord, pharyngeal gill slits, tail. </p>
<p>Describe translocation (plants)!</p>
<p>^^ FYI: "Pavlov's doggies" = classical (not operant) conditioning</p>
<p>Ahh, Translocation, what?!</p>
<p>That sadly does not ring a bell.</p>
<p>translocation is the movement of carbohydrates through the phloem! for plants, unless you wanted DNA...</p>
<p>describe agnostic behavior</p>
<p>Did you mean agonistic behavior?</p>
<p>It's aggressive behavior that occurs as a result for competition for food or other resources.</p>
<p>In the nervous system, how do neurons communicate?</p>
<p>through neurotransmitters like acetylcholine that go from one cell to another over the synaptic cleft</p>
<p>Q: What did miller and urey do?</p>
<p>A: Set up experiment w/ conditions of early earth and were able to synthesize cell-like things, amino acids, etc. </p>
<p>Q: Plant hormone that inhibits growth?</p>
<p>A: ABA</p>
<p>Q: What deletes the introns (in eukaryotes) before the mRNA leaves the nucleus?</p>
<p>Spliceosomes???</p>
<p>Q: What is an auxotroph?</p>
<p>yeah spliceosomes composed of snRNP's and other protein factors and proteins</p>
<p>auxotroph = organism that can not synthesize chemicals/hormones required for its growth</p>
<p>Q: The peppered moth during the industrial revolution in Britain went through a process of natural selection called..?</p>
<p>Directional Selection</p>
<p>Si?</p>
<p>Q: How does the lac operon work?</p>
<p>P.S. do we need to know much about operons, because I'm lost when it comes to that subject..</p>
<p>yeah thats right astranger and I think we do have to know a bit about lac and trp operons.</p>
<p>lac operon - when lactose is not available, a repressor created by a regulatory gene binds to the operator region so that RNA polymerase is unable to transcribe the necessary genes that code for enzymes that allow the breakdown of lactose . When lactose is available, lactose acts as an allosteric inhibitor and combines with the repressor to inactivate it. Then the RNA polymerase transcribes the genes that code for enzymes that break down lactose.</p>
<p>Q: How does the trp operon work?</p>
<p>Isn't it autotroph, not auxotroph..??</p>
<p>There's both reversepsych.</p>
<p>The trp operon is usually on unless theres too much of it i think, or somethign like that....</p>
<p>Q: Explain the whole thing with action potential and depolarization and repolarization thingy in the neuron</p>
<p>Yeah.. trp = corepressor in trp operon</p>
<p>When a neuron is unstimulated, it is at resting potential (-70 mv). When it gets stimulated , gated channels open and sodium builds up inside the membrane. The cell membrane becomes depolarized (negative outside, positive inside). At above a certain threshold level, the buildup of sodium causes an action potential that stimulates other sodium gates to open. Meanwhile, potassium goes out of the membrane which causes repolarization by turning the voltage of the membrane back to -70 mv.</p>
<p>Describe how muscle contraction works</p>