Temperature and Keq
For endo/exothermic reactions, why does a change in temperature affect the Keq of the reaction? The sources that I've found refer to heat as a reactant/product, and the reaction shifts accordingly when...
View ArticleConfounding variables
For the purposes of the MCAT, specifically PS, do we assume a confounding variable is any extraneous variable that can affect the results of the experiment, or one that changes systematically with the...
View ArticleEK exam 4 CP #15
Does this question have anything to do with acidity in water? Are acidity and solubility completely different things?
View ArticleEK #4 C/P #14
Very confused about this question. Answer is B. Can anyone explain? So I looked it up in my textbook and it says for this kind of problem, the rate of flow through the container is negligible compared...
View ArticleCouple questions
1) Can a virtual image act as an object in a lens system? 2) Why do our bodies make ketone bodies from acetyl coa and then convert it back to acetyl coa? What's the point of doing this?
View ArticleQuestion about insulin resistance
I understand why I got this question wrong: the antibiotic treatment would eliminate gut biota and have the same effect of knocking out the GPCR talked about in the passage, leading to weight gain, and...
View ArticleSection Bank B/B #16
I wasn't too sure about this one. Are all the other options examples of voltage gated channels? Are the main gating mechanisms ligand gated, voltage gated, and ungated? I know that B is voltage gated...
View ArticleAAMC QPack Physics #96
Why does the explanation say that a "perfect fifth" is a factor of 3/2 when it seems like the passage was saying that a perfect fifth is 2/3. Can you please explain what it is that I'm missing here. I...
View ArticleAAMC FL 2 C/P #9
So I am a little confused on this question. I remember from o-chem that sometimes UV light was used to create free radicals that could react, thus bonds would be breaking. I understand electrons get...
View ArticleEK - antibody specificity
Tissue staining with specific antibodies, known as immunohistochemical analysis, did NOT show increased levels of pStat3 (phosphorylated Stat3 transcription factor). What explanation is LEAST likely to...
View ArticleNames of different chemistry rules
Do we need to know the names of the different chem rules? For example do I need to understand stand buffer dynamics AND know the name of the principle, le chateliers principle ? Sent from my iPhone...
View ArticleEK 4 C/P #12
For this question, I guess B makes sense but I think I chose D because at 0.1% concentration, there is less colony formed. Can anyone explain this question? How can I get better at these kinds of...
View ArticleSection Bank B/b #40, question about Biotechnology
For this one, I chose A because I thought PCR was a common technique used generally in biotech procedures to amplify a DNA sample so that you have enough for whatever type of analysis you are doing? I...
View ArticleEK FL 4 B/B #4
For this question, is A the incorrect answer because for PIWIL-1 the difference between the first three bars is not that significant? Also, what purpose does the sertoli only syndrome control serve in...
View ArticleTranslation initiation details
How in depth do we have to know the details for translation initiation (eukaryotes and prokaryotes) for the MCAT? For example, are we expected to know exactly how all the transcription factors and...
View Article498 on Kaplan FL1. 3 weeks to go. What should I do?
Hey guys. So I just finished a kaplan mcat course and finally decided to take their FL1 that's required. I got a 498 (123,124,125,126). I have just about 3 weeks to go until my September 2nd MCAT....
View ArticleWhat happens to the capacitance when voltage is increased?
According to C = Q/V the capacitance should increase when the voltage is decreased, or when the charge is increased. I got a question wrong on EK where the equation C = (k *E*A)/L was given for the...
View ArticleDirection of magnetic field
The researchers use a negatively charged cryogen in the experiment. A negative charge is located at the center of the lesion. The charge's velocity should be in which direction so that the magnetic...
View ArticleEK FL C/P #21
Is this question just saying that resonance, polarity and radius are the primary determinants of acid strength? Or are they saying that H-bonding has no affect on acid strength? I thought that...
View ArticleKaplan FL1 Q20
The reaction 2A + B <--> C + D is found to take place in two steps, the first, which follows second order kinetics is slow and the second is fast. Which of the following CANNOT be the mechanism...
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