EK Bio Nervous System #27
The question reads: If a neuronal membrane were to become suddenly impermeable to potassium ions but retain an active Na+/K+ ATPase, the neuron's resting potential would: A) become more positive...
View Articleweird CARS question type (Cars pack 2 spoiler)
View attachment 207668 I hadn't seen this type of question type before so I was wondering if anyone else had other than here. I thought it was asking to refute the statements using details from the...
View ArticleATP Yield
Yeast are single-celled eukaryotes. So their ATP yield should be 36 per glucose, right? Question 28 of B/B on the sample test says it is 38 ATP.
View ArticleTPR FL1 CP 5 How does gas expand without doing work?
The passage literally says "work done by the system [expansion] is positive", which is why I chose positive. The question stem does mention ideal gas, but I still can't mentally grasp how gas magically...
View ArticleAAMC Sample C/P Questions
I don't quite understand 38, 48, and 55 on this section. 38) What is the expected 14C labeling pattern found in isopentenyl phosphate produced this way? Labeled carbon atoms should be found at... I...
View ArticleTPR complete test 2 #49 C/P
I am so confused about this question. Can anyone help? Answer is C.
View ArticleDecrease V is decrease P
Just to clarify: In ideal gases, as volume increases, pressure decreases. In liquid, ie. plasma, as volume increases, pressure also increases? (got this from Qpacks Bio #80)
View ArticleIon channel effects on neuron membrane potentials KA Passage
Anybody do the "Ion channel effects on neuron membrane potentials" KA passage. I could not follow through what the 2nd paragraph meant. A scientist is studying neurons in vitro to determine what occurs...
View ArticleSample test P/S Questions
These are the questions I have: 10, 17, 37, 47 10) As described in the passage, the long-term consequences of child maltreatment have been found to include all of the following outcomes EXCEPT: Is...
View ArticleUV spectroscopy
I read in the kaplan book that uv spec allows electrons in the pi bonding molecular orbital to jump to pi antibonding molecular orbital. why not sigma?
View ArticleBio Qpacks #84
The correct answer is D. From my understanding, circulatory & bone are mesoderm. Dermal=skin & nerve should be ectoderm, correct? Or am I misunderstanding what dermal is?
View ArticleCARS question pack 1 picasso passage #5
I don't understand...how is boldly colored simple faces indicative of childlike naivete?
View ArticleNextstep Full Length 2: C/P #25
QUESTION What would be the approximate ratio of lactate to lactic acid in the final Lactated Ringer's solution after the initial preparation by student A? (Relevant passage information: pH of solution...
View ArticleIC50 definition
I see that IC50 comes up a lot in passages, just wanted to confirm my understanding of the definition. IC50=concentration of inhibitors needed to inhibit 50% of the reaction. A high IC 50 would mean...
View ArticleEnzyme Kinetics - what's the real reason for Vmax changes?
Competitive inhibitors don't change Vmax, while uncompetitive/noncompetitive inhibitors do. Why? They all do the same basic thing - prevent substrate from being processed by the enzyme. But the way...
View ArticleTBR thermochemistry #4
does increasing temperature allow the reaction to increase its rate?
View ArticleTBR O Chem Section 3 Example 3.10 and 3.16
Hey there y'all! So I was finishing up reviewing spectroscopy and analysis today and ran into a few example questions that left me feeling a bit confused. Here's a picture of the first example: View...
View ArticleKhan Academy C/P Passage Help
The passage titled "Quantitative Analysis of Contaminated Water Supply" is absolutely tearing me apart (link below). I'm totally confused about the questions. The hints aren't particularly helpful in...
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