<p>I picked protein as well.</p>
<p>For that adenine, ribose, phosphate I put nucleic acid because of all the emphasis on "ONE." But in hindsight RNA was a much better answer (It wasn't ATP because you'd need 3 phosphates).</p>
<p>:(</p>
<p>i didnt take the test but im going to take it in november, i think the answer is nucleotide. If I understand the question correctly, and it stated that it was one of each, then it would have to be a nucleotide because a nucleotide is composed of a sugar (ribose), phosphate, and base(in this case adenine).</p>
<p>Anonymous91 - Yeah, if anything, it'd either be a nucleotide (RNA/DNA are polymers of nucleotides) or a nucleic acid.</p>
<p>My Kaplan's has the following defintion for a nucleic acid:
an organic molecule consisting of joined phosphate, 5-carbon sugar (deoxyribose or ribose), and a purine or a pyrimidine (adenine, guanine, uracil, thymine, or cytosine)</p>
<p>No definition for nucleotide in there, unfortunately.</p>
<ol>
<li>it's nucleotide, it asks for ONE ribose, ONE phosphate, ONE adenine</li>
</ol>
<p>for the polymer, it say "polypeptide", so its protein</p>
<p>What about "nucleic acid" then?</p>
<p>I didn't read all 7 pages before this, but I just wanted to say...thank god that's over with!
I read a study thread last night and you all made it sound like it was going to be AWFUL! I thought it was really pretty easy though. I LOVED that there were a dozen questions on blood cells and such. Two years of human physiology served me well today; my teacher would be so proud :P</p>
<p>it's the whole chain of nucleotides. </p>
<p>like DNA "deoxy ...... NUCLEIC ACID"</p>
<p>how about that, enery in a food chain question?
1)every is lost as you go up each level
OR
2) herbivores get more energy than carnivores</p>
<p>ANd is Hawaiian island question, isnt the answer earth on hot mantle thing?</p>
<p>Energy is lost. </p>
<p>Herbivores don't get more energy because there are MORE of them. Energy per organism is the same.</p>
<p>But the question asked about food WEBS, and the answer choice said food CHAIN. Isn't it one of those questions trick questions?</p>
<p>"The trophic level of an organism is its position in a food chain, the sequence of consumption and energy transfer through the environment."</p>
<p>"When one animal feeds off another, there is a loss of heat (energy) in the process. Additional loss of energy occurs during respiration and movement. Hence, more and more energy is lost as one moves up through trophic levels."</p>
<p>i thought it was energy lost.</p>
<p>I put energy lost. I'm pretty sure that's the right answer.</p>
<p>what did you guys put for the albino question (inheritance tree)?</p>
<p>actually, azure, it doesn't really matter if it said food chain or web.
don't worry about it being a trick question- on the SAT, there aren't really trick questions, just questions that people get tricked because they aren't thinking/they think too hard.</p>
<p>"1. adenine, ribose, phosphate question: is that ATP or RNA?"</p>
<p>It was "a nucleotide". It said specifically ONE molecule of each.</p>
<p>"5. gamma rays, insects, uv rays-WTHWTHWTH"</p>
<p>I went with uv rays. It was a guess though.</p>
<p>"what did you guys put for the albino question (inheritance tree)?"</p>
<p>I don't see what you found so difficult about this... Basic Mendelian inheritance.
All the parents that had atleast one albino child were heterozygous but didn't express albinism. The chances of 8&9 having an albino kid was 75% because that's the chance of two heterozygous parents having a homozygous recessive child.
I don't even remember all the questions there, but that was not a difficult one.</p>
<p>for the foodweb/chain one, i said herbivores get more energy because the answer for the energy lost said MOST of the energy is lost up a level, and only 10% is lost..</p>
<p>no, ..^^^^is wrong. 10% of the energy is passed on, therefore, 90% is of the energy is actually lost. Also, about the albino one. It's not 75% because albinism is a recessive disorder, so you need two parents who are heterozygotes. Then, if you draw your punnet score, it's 25% possibility of having an albino child.</p>
<p>yea i put 25% for the albino one because it's a recessive disorder</p>