Signal Recognition Particle Translational Arrest
I have been trying to figure out why there is a translational arrest during the signal recognition particle binding to the ER. I thought it was because this arrest allows for the protein to be fully...
View ArticleDissertation Writing
Anyone interested in taking help in dissertation proposal writing then feel free to contact.
View ArticleCN- vs. CH3OH in terms of nucleophilicity
"Which of the following reactions is most likely to proceed by an Sn2 mechanism? CN- + .......some electrophile CH3OH + .....same electrophile" So it is comparing the nucleophile strengths. The answer...
View ArticleAdvice on MCAT Study Schedule/Practice exams
Has anyone tried studying going subject by subject? I'm trying to rent out the MCAT books and not have to buy them. I'm wondering if I will forget the information or not. Otherwise, I will buy them if...
View ArticleTBR physics electricity circuits Phase II passage III
Hi can someone help me with this question please! It's a passage but I will type out the part that we need: they gave us a circuit with a power supply- a resistor R1 and a capacitor with a solution of...
View ArticleBR Physics Chapter 1 Ex 1.10
This question relates to the chapter re: Translational Motion < Freely Falling Bodies What is the approximate vertical launch speed for an object that is at the same height above the ground at 2.7 s...
View ArticleEquilibrium and total pressure
Reading through general chemistry when I encountered this passage on gasses and equilibrium. 1 CS2(g) + 4 H2(g) <-> 1 CH4(g) + 2 H2S(g) At equilibrium the total pressure is Ptotal =...
View ArticlepH ratio question
View attachment 213546 Can someone just explain to me how you know to divide 1/100, instead of 100/1 like I did? I knew that B and C are wrong, & and I understand that there is a 100x difference in...
View Articlefluid flow and temperature
This question came from the EK Physics 1001, question #569. When comparing two points of fluid flowing through the same horizontal pipe, if the fluid velocity is greater, then: A. the temperature is...
View ArticleHow does hyperventilation lower Oxygen levels?
Berkeley Review has a question, "In order to hold their breath for a longer duration, swimmers hyperventilate before swimming. This can be dangerous because:" Answer was that lows pCO2 permits one to...
View ArticleHow many chiral centers and different stereoisomers ...
How many chiral centers and different stereoisomers does 1,3-dimethylcyclohexane have? This is a Kaplan q bank question. The answer is 2 chiral centers and 3 stereoisomers. Could someone please explain...
View ArticleEK Bernoulli Equation and Equation of Continuity
The question states: A container is filled with an ideal fluid. Spigot a and b are at the same height. Spigot b has a larger cross-sectional area than spigot a. According to the Bernoulli Equation and...
View ArticleAAMC official guide C/P discrete question 28
Q: "Human speech is generated in the vocal cords as the lungs push air past them. What property of the vocal cords is changed so that the frequency of sound can be altered?" A. Volume B. Density C....
View ArticlePolar vs Nonpolar Amino Acids
Hello, everyone. I am creating flashcards for the 20 amino acids, and I notice there is a discrepancy on whether Proline, Cysteine, and Tyrosine are polar or nonpolar. I have seen multiple "charts"...
View ArticleHypnosis and memory?
How does hypnosis effect memory? Sent from my iPhone using SDN mobile
View ArticleShock waves Physics sound
I am studying from TBR and I'm not sure I understand what the shock wave is. I know that shock waves occur when vobject > vsound but I don't understand what's happening to the pressure why is it...
View ArticleOfficial Sample Test question (Physics) (E=hf)
View attachment 213723 I understand how to use the E=hf / E=hc/wavelength formula, but this question threw me off because they give you the energy in terms of keV instead of joules and I'm confused as...
View ArticlePlatelets and Blood Components:
Question from the TPR: Platelets do not normally aggregate in the absence of tissue injury because: I. platelets are not normally found in plasma. II. they are not exposed to compounds present in...
View ArticlePossibe mistake from TPR - Kidney
I believe TPR chose the wrong answer here so just wanted to confimr @aldol16 or anyone else can chime in: In which region(s) of the nephron is the urine hypertonic compared to plasma? I. Descending...
View Article