Confused about which values Keq refers to
There is a question about equilibrium in TBR in a passage that has a table showing increasing temperature with the increasing Kp value for a reaction. The question asks, according to the table, the...
View ArticleTBR Bio II chapter 10 passage 8- genetics expression
Hey guys, so below is a question from the genetics expression chapter of TBR. I kind of get the question but I'm still a bit confused about the wording used. Can you guys help me out? Thank you so...
View ArticleAAMC Bio Pack 1 Q#1
Hello, already starting to question my understanding of Biology with this question. The question states that "The sodium pump would be most active in cells with which of the following structures?" A)...
View ArticleTBR Biology 2, Chapter 1, Passage 2, # 7
TBR Biology Book 2, Chapter 1, Passage 2, Question #7, page 59. The exterior of a rough microsome is equivalent to the: A. cytosol. B. lumen of the nucleus. C. lumen of the rough ER. D. lumen of the...
View ArticleGraves Disease - confusion regarding feedback inhibition
taking a practice exam and got this problem wrong: "Graves’ disease is an autoimmune disorder in which autoantibodies are formed against thyroid stimulating hormone (TSH) receptors on the thyroid...
View ArticleTBR Biology Chapter 9 Genetic information
"What is the haploid amount of DNA in the genome of a eukaryotic cell after the completion of Meiosis I?" A.1C B. 2C C. 3C D. 4C The answer was B, I thought it was A. What does "C" mean? According to...
View ArticleTBR Passage about Stereoisomers?
Which of the following statements are valid for the isomers of carvone and limonene? I. Both limonene and carvone have four possible stereoiosmers each. But the answer explains that both carvone and...
View ArticleEL 1001 physics number 207... error?
The earth has a radius of approximately 6400 km. If an object could orbit the earth just at its surface, how fast would it have to trave? supposed answer: 8 km/d I'm getting the square root of whatever...
View ArticleHardy Weinberg Equilibrium, sex-linked
I understand the general assumptions behind the Hardy-Weinberg equilibrium and the equtions, p+q=1 and p^2 + 2pq + q^2 =1. What I'm confused is when we deal with sex-linked genes, and the frequency is...
View ArticleAAMC Official Guide to the MCAT 2015 Chem/Phys - Page 76
Hey guys, I'm currently reading through the AAMC Official Guide paperback (4th edition) and was wondering if anyone could help me reason through how to get the right answer for the Chem/Phys problem on...
View ArticleNeed help understanding resonance/delocalized electrons
Why/how does resonance stabilize a molecule? Why do delocalized electrons make a molecule more stable than one with localized electrons? Why is acetic acid a stronger acid than phenol? (other than...
View ArticleHybridization Question
Hi all. Quick question from my TPR FL. What is the hybridization of XeF4? Answer is sp3d2, but why? I am pretty comfortable with sp, sp2, and sp3.... when d orbitals get involved it gets a little hairy.
View ArticleConfusion about buffers
This is an extremely basic question, but what exactly is meant by "one half equivalent"? A question asks, "which of the following results in a buffer with a pH of 5.0, given that HA has a pKa of 4.7?"...
View ArticleTBR Bio I Action Potential Passage III pp 44
Can someone please explain to me the answers to questions 14,17,18. I read the solution and it still didn't make any sense. Many thanks!!
View ArticleAmplitude of a light wave
To increase oscillation freuqnecy of an electron (in a vacuum) stimulated by an EM wave, one must: I. Decrease wavelength II. Increase E field amplitude of the wave III. Increase the speed of the wave...
View ArticleConversion of Energy problem
Hi, I have some confusion regarding the following question: View attachment 210752 View attachment 210754 The answer is B but I'm confused as to why it is not D. The answer key cites the fact that...
View ArticleWork with counterweight question
Hi, can someone explain this problem to me in a different way than the answer key: View attachment 210765 View attachment 210766 "The box" is referring to a box on the lift plate. First, I'm confused...
View ArticleDouble slit
When you are trying to find the distance between fringes on the screen in this experiment, does the equation: y=lamda*L / d only work for fringes right next to eachother? So for example, you could use...
View ArticleBuyoant force confusion
So the buoyant force is defined at force pushed up by fluid molecules - force pushed down on object by fluid above it. When Khan Academy was deriving the equations, it shows that F upwards =...
View ArticleNice New MCAT Resource
Hi guys, So I found this new thread on Youtube where there is a new MCAT question being posted every day. I just figured I would share it. The questions are relatively straightforward, and I have found...
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