Dec-2012- Biology (E/M)

<p>Three wrong and a skip would be 780-790 depending on the curve</p>

<p>@mammichaels , i think the correct answer was something about how humans need O2 to live and that it is highly reactive.</p>

<p>What was the oxygen question again?</p>

<p>Do you guys remember any more questions?</p>

<p>The first questions of the M section was on carbon. </p>

<p>What was released after ATP undergoes hydrolysis.
Which one was ATP
What is the common building block of carbohydrates.</p>

<p>Other questions included:
What is the function of the iris?
A man who is doesn’t carry the color-blind gene marries a woman who is color-blind recessive. What percentage of boys will be color blind?</p>

<p>iris acts like an aperture, changes levels of light that can enter eye</p>

<p>I got 25% for color blind question </p>

<p>for what is released after atp, it was the inorganic phosphate molecule (looked like the phosphate group on a phospholipid (A)</p>

<p>common building block of carbs is the N-C-C (peptide)</p>

<p>also, O2 is highly reactive and serves important role</p>

<p>The common building block of carbohydrates was glucose. The amino acid was for proteins.</p>

<p>@Aquawater98 Really ? Oh well i have a good chance at that sexy 800 then !!</p>

<p>The Primary Productivity One was Estuaries (Looked it up)</p>

<p>Female blockage was I, II, and III I think because II was increased levels of LH and that is correct (again looked it up to be sure)… Tubes blocked is correct and so is the sperm one…</p>

<p>RFLP’s I think the answer choice was DNA Fingerprinting if I’m not mistaken… but not sure what the answer choices were for that one…</p>

<p>I’m not sure about the deer one… I thought it was 1920=1925 because that showed that carrying capicity was reached and then a decline occured… wasn’t the last one for that experiment the predators and population density as shown in the diagram??</p>

<p>ALso for the yeast and balloon experiment… I put fermentation and Carbon Dioxide as Yeasts ferment.</p>

<p>i put sucrose for the one with the photosynthesize one…</p>

<p>for the iris… doesn’t it transmit images to the retina? I may be wrong… someone told me this…</p>

<p>And explain the food chain one? I put seeds and snake as last… cause fleas are just parasites but are they decomposers?</p>

<p>For the food chain one, I said that the mouse ate the seeds. Snake ate the mouse then ??? ate the snake ending with the coyote being the host for the fleas. so fleas was last. It wasn’t a complete chain so there were no decomposers from what I can recall. I think you just had to chose the best answer. </p>

<p>There was one question that had two correct answers but you had to choose the better one. It was the one about natural selection. One choice was which animal survives or which one reproduces more. I said Natural selection is dependent on which animals get to reproduce. I didn’t like that question because animals need to survive to reproduce. It was a toss up.</p>

<p>@ Robinkennedy
1)What was released after ATP undergoes hydrolysis. ATP is converted to ADP so a phosphate group is given out.</p>

<p>2) What is the function of the iris?
The iris has radial and circular muscles that help in the contraction and dilation of the pupil. Thus controling the amount of light that reaches the retina.</p>

<p>3) A man who is doesn’t carry the color-blind gene marries a woman who is color-blind recessive. What percentage of boys will be color blind?</p>

<p>If you create the monohybrid cross for this, between a XY male and a XX- carrier female, you get as a result one normal female, one carrier female, one normal male and a colour blind male.</p>

<p>Now chances that a BOY will be colour blind is 1/2 I.e 50%</p>