Simple Absolute Configuration Question?
Hi everyone I had a quick question about absolute R/S Configuration dealing with SN2 backside attack. So, I'm aware that the configuration inverts when an SN2 undergoes backside addition (S => R) If...
View ArticleC/P Section Bank #100 (blood viscosity)
View attachment 204397 Is the logic that for larger blood vessels, there would be more interactions with the vessel walls as the blood flows out from the center? I thought it would make more sense to...
View ArticleWhy are only L amino acids found in nature
I've read plenty of textbooks which state that biological systems in nature only use L amino acids over D. But I can't find a reason as to why. Why are only L amino acids found in proteins in nature?
View ArticleBlood Glucose and Glycolysis
It might be because I'm delirious, but I just needed a quick clarification regarding blood sugar levels and glycolysis. If blood sugar is high, because insulin is no longer being made, we would have...
View ArticleResting Potential
question from EK book: If a neuronal memb were to become suddenly impermeable to K+ but were retain an active NA+K+ ATPase, the neuron's resting potential would: Answer: Become more positive because K+...
View ArticleNextstep FL3, Q34, B/B
@NextStepTutor_1 On this question, if thiokinase is a membrane bound enzyme and is attached to the inner face of the lipid bilayer cell membrane, why wouldn't it just by found among cytosolic enzymes?
View ArticleNextStep FL3, Q33, B/B HELP!!
@NextStepTutor_1 @Next Step Tutor I would greatly appreciate your help on this one. In beta oxidation, for every acetyl CoA molecule you produce you also produce one NADH and one FADH2. The answer...
View ArticleWater Excretion by the kidney
Hello, I'm seeking a simple explanation for this passage in my physiology text book, the author of the passage discusses water reabsorption and excretion in the renal tubules. The passage: "Normally...
View ArticleNS FL3, Q52, Psych
@NextStepTutor_1 What is the difference between internal consistency and construct validity?
View ArticleNextstep FL3, Q50, Psych
@NextStepTutor_1 Hi, If you're behaving without examining evidence for yourself, doesn't this strike you as more normative influence rather than informational influence? Do you have a sense of why it...
View ArticleMotor Neurons vs Sensory Neurons and classification. Are motor neurons part...
So motor neurons cell bodies are located in the spinal cord and their axons leave to synapse with the muscle. SO they are part of the Central nervous system right? we also have spinal nerves that...
View ArticleNS FL4, C/P, Q8
@NextStepTutor_1 On this question, the question stem asks what angle would allow you to most accurately determine blood velocity. Per the equation, you have cos(theta) in the denominator. According to...
View ArticleWrong Answer? NS 4, B/B Q54
I think this is the wrong answer. The passage states that the a human diploid cell has 6 billion nucleotides. Given that you know that you have double-stranded DNA in human diploid cells, the length of...
View ArticleConfused about voltage...
It's been a few years but I'm starting to question my own competence. DOes anyone have an intuitive understanding of voltage and can explain? Having trouble understanding the highlighted regions in...
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Toxins' heat stability
Hello there, I know endotoxins are heat stable while exotoxins are not. But why's that? What particular feature do the endotoxins have to resist heat? Is it because the are mainly made of lipid and...
View Articledream
Is Freud's dream theory similar to the activation synthesis theory? Kaplans book says for AS theory " dreams are caused by random activation of neural circuity. This activation can mimic incoming...
View ArticleHELP WITH ORGANIC CHEMISTRY TBR CHAPTER 1 QUESTION
Hi all, I started studying organic chemistry today using TBR and got 15 out of 25 questions wrong. Pretty bummed about it. Anywoo, While reviewing the exams I realized I wasn't reading some of the...
View ArticleExamkrackers Exam 1 B/B #168
Can anybody explain the reasoning behind this? The passage stated that the SA node has a higher than normal permeability to Na+ and that sodium fluxes in during a cardia action potential through a VG...
View ArticleShould I Be Concerned?
Hello all, I am a Pre-med Junior at a University in mid Nebraska, I am just gearing up to take my MCAT exam on June 2nd of this year. I will be in a full load of classes begging this next week (full...
View ArticleMcat approach
Hello so I’m yet to take my mcat but I haven’t taken organic 2 and biochemistry and other advanced bio classes. For those who scored in the 80th -99th percentile, how did you approach this beast? Any...
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