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ETC complexes - discrepancy between books

My TPR book shows 3 complexes in the ETC -- NADH dehydrogenase, cytochrome C reductase, and cytochrome C oxidase, with FADH2 reducing coenzyme Q. I was checking the Voet Biochemistry textbook for more...

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NS3 #43 C/P

View attachment 221135 View attachment 221136 View attachment 221137 I don't see how II and III are correct. My TPR book says that the cation involved in ventricular depolariztion is Ca2+. This answer...

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Khan Academy ETC uncoupling

When taken in very high doses, aspirin causes a fever. What is NOT a plausible mechanism for this effect at the level of the electron transport chain? a) Aspirin is a site-specific inhibitor of one of...

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Section Bank P/S #3

After reading the first highlighted sentence I was ready to pick B (correct answer), but once I read the last sentence I was more drawn to A. I am still confused as to why, overall, the study's...

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Confused about speed of sound dependence on density

From the equation, v = square root of bulk modulus / density, I would think that as the density of an object increases, its speed decreases. This is in contradiction with the idea that the speed of...

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Official Guide B/B #9 (spoiler)

I was thinking of choosing D at first but I couldn't really reason my way through this one. Can somebody explain why A or B would be incorrect? I assumed that chloramphenicol didn't inhibit...

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NS FL# 5, B/B, Passage 10, recessive inheritance confusion

So I can see why TEX11 inheritance isn't sex-linked because the gene is on chromosome 12, but then why does the son exhibit the phenotype when he only gets one mutant allele from his mother and one...

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Last Minute Amino Acid Help

Hello all, my MCAT is this Thursday and I'm feeling good. One thing still befuddles me a lil. So when we're looking at an AAs charge in solution, are we looking at the pka or pI? Take Asparatate for...

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MCAT NYC Study group

Hey guys, Kind of new here although I've been reading the forums for a while now. I'm preparing to take the exam soon and I feel extra heads and active discussion is much better and conducive,...

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AAMC sample C/P Q39

I tried to figure out the mechanism for this, but I can't seem to translate what I found here on this website: Conversion of carboxylic acids to esters using acid and alcohols (Fischer Esterification)...

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NYC Study group

Hey guys, Kind of new here although I've been reading the forums for a while now. I'm preparing to take the exam soon and I feel extra heads and active discussion is much better and conducive,...

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Best Youtube Chennels for MCAT

What are you favorite Youtube channels? Or any websites? Khan Academy is generally good for most subjects Any particular in any of these subjects? General Chemistry- Tyler DeWitt is so clear! I love...

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Fatty acids mnemonics

hey i am sharing with some biochemistry mnemonics i made hope it helps out

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Unscored C/P question 23

When I answered this question, I didn't really think through it. I just thought of PV = nRT, higher volume = lower pressure. I'm a little confused about the concept behind this. Is it asking what the...

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OG CP #3

I got this one correct but I was stuck between D and B during the test. I thought that according to: , Keq should increase as T increases. Why is this not the case? I've been confused about G and G(0)...

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Next Step test 9-bio section. question 6

i don't get the explanation cellular and a peripheral protein. Peripheral proteins attach to integral membrane proteins or are anchored in the lipid bilayer via a hydrophobic domain. The passage states...

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increasing oxidation state = higher acidity?

can somebody explain why please?

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Titrations with Strong and Weak bases

If the H2SO4 solution were titrated with 1.0 mM NH3 instead of KOH, which of the following would be required to determine the original sulfur content of the coal? A. A smaller volume of base added B. A...

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AAMC Sample BB #19

When I did this question, I went with Lysine because they mentioned that the modified nucleotide, when run over a column that binds Lysine, did not elute. Therefore, it was Lysine. I definitely...

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Khan Academy Recombinant DNA

Restriction site: Gene of interest: This question has been giving me some trouble. Can somebody please explain where to start? Having a hard time picturing where everything goes..

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