AAMC QPack Physics #28
View attachment 221513 View attachment 221514 I got the answer correct. 1. But when I was reviewing the question I started to wonder if the resistance would decrease since R=V/I, and voltage stayed the...
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Section Bank P/S #56 (spoiler)
Conclusion: The experiment was testing the responses of normal sleep and sleep-deprived subjects to assess differences in brain activation, hunger rating, etc. after viewing images of high- or...
View ArticleQuestion about gluconeogenesis
I got this question wrong, and I never took biochem II, so I spent a lot of time awhile ago trying to teach myself the pathways. This is one of the major topics that I am worried about for the exam,...
View Articleelectron flow vs current flow
what direction does current and electrons flow. can someone please explain what the convention and all means? actual vs conventional?
View ArticleNext Step FL#3 C/P #11
See images for question/explanation and associated figures. The passage states that the half-life of Co60 is 5 years and the half-life of X is 1 year. The explanation goes on to say that "Because X has...
View ArticleThe Action Potential? (NextStep FL #4, Q21)
The question is as follows: When an odorous molecule binds to olfactory receptors, the cell transduces the information into an electrical signal that travels to the brain for processing. Which of the...
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Ether hydrolysis
I'm having trouble understanding why II is more easily hydrolyzed than I in the case of acid hydrolysis. Is it because the 2nd electronegative O is closer and pulls more electron density compared to...
View ArticleEXAMCRACKERS 1001questions help gen chem
can someone explain this question from EK 1001 gen chem (331) a heat engine is designed using an ideal gas as a working fluid. at the completion of each cycle, the engine returns to its original state....
View ArticleOxidoreductases and lyases
I'm a little confused on the difference between them. According to the definitions I found online, oxidoreductases catalyze oxidation/reduction reactions and lyases break/form double bonds by...
View ArticleNext Step FL#5 B/B 54
Question/Explanation attached. The passage states it is autosomal recessive so in order to have the disease (which he does) he must be homozygote (aa)...how is this possible if the Father is AA and the...
View ArticleNS exam 4, P/S #20
@Next Step Tutor @NextStepTutor_2 @NextStepTutor_2 A little confused by this question. I know that the passage talks about women and elderly people being more "vulnerable" and thus giving more negative...
View ArticleFrameshift mutations
A frameshift mutation involving insertion of one base pair in an exon may result in: a protein product of a lower molecular weight. a loss of meiotic recombination of the gene. premature termination by...
View ArticleTPR Inductive effect + pKa
Water bound to which of the four hemes was most likely shown to have the lowest pKa? A. Native H-NOX correct answer B. Mutant 1 C. Mutant 2 D. Mutant 3 The explanation is: "Since all of the iron atoms...
View ArticleAAMC section bank P/S #78
Why is D incorrect? I feel like B is too general and doesn't refer to the SG hypothesis Thanks a lot! @aldol16 @5words
View ArticleKA enzyme kinetics
Individuals heterozygous for the PKU mutation have very slightly increased levels of phenylalanine. How would you expect the phenylalanine hydroxylase reaction rate of an individual heterozygous for...
View ArticleQuestion about carbohydrate rings and enthalpy
There was a question in TBR: The difference in the enthalpies of combustion for xylose (an aldopentose) and ribose (an aldopentose) can best be attributed to: The Answer was steric repulsion in the...
View ArticleWhich ion channels are responsible for maintaining the resting membrane...
So I came across this question, but I am confused about their explanation to why the answer is not B, because I thought it was the voltage gated sodium-potassium pump that maintains the resting...
View ArticleKA Transcription & translation
The following base sequence is given for the DNA coding strand: 5' ACTGTTACATTG 3'. Insertion of the base thymine (T) between the 8th and 9th base may affect how many amino acids? A. 0 B. 1 C. 2...
View ArticleBoiling Point and Pressure on top of liquid
Let us say that we have two compounds with different boiling points in a fractional vacuum distillation. As the pressure above the liquid decreases, the BP of both compounds decrease and the difference...
View ArticleC/P Section Bank Questions
54. So I see how my answer is wrong as I was a little confused about this passage's mechanism...but how do you know that the answer is glucose over galactose? In the passage it says, "a glutamate...
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