strength of bonds
what determines the strength of covalent bonds that lead to bond energy values? In the equation delta H = BE broken -BE formed, is the bond being broken heterolytic or homolytic?
View ArticleAmino Acid memorization tools(for visual learners)?
Does anyone know of any resources which have videos/pictures for memorization of the Amino Acids (names, characteristics and structures)? I'm a really visual learner and resources like PicMonic and...
View ArticleQuick question
For those of you who have scored above a 510 on the MCAT, what is a good timeline to study for the mcat? As in how many hours/months? Also is there a certain order to study the material? Thanks! Just...
View ArticleClik here to view.
EK 101 CARS vs. Kaplan CARS
I've always been practicing CARS with this book, it is a bit outdated (2008/9) I've improved to consistently scoring 70-80%. When I take the Kaplan CARS, my scores are usually 40%. I find myself...
View ArticleTypes of Controls
Please correct me if I am wrong, but as far as I understand: Positive Control - what the desired result should look like Negative Control - what an unsuccessful result looks like What is a vehicular...
View ArticleTBR Physics Exam 1.2 #9 Change in momentum
As a hot-air balloon ascends upward at a constant speed, a package is dropped out of the balloon. At the instant the package is released, the momentum of the balloon: A.) increases B.) decreases C.) is...
View ArticleEffects of cholesterol on the lipid membrane--BR inconsistency
This is probably a very minute detail, but it's bugging me because BR states two different things. On page 34 of their bio II book, it says "Addition of cholesterol to a membrane acts to decrease...
View ArticleClik here to view.
Metabolic Pathway Locations
So I still seem to be getting confused with where each metabolic pathway (ie. glycolysis, TCA, ETC, anaerobic pathways) occur in the cell and how the anaerobic pathways fit into everything. If someone...
View ArticleQPacks Chem #59
View attachment 207793 View attachment 207797 View attachment 207794 View attachment 207795 View attachment 207796 Here is my thought process: Tube 6 had the addition of CuSO4, according to Le Chat's...
View ArticleOfficial Guide B/B
Question #9: Chloramphenicol did NOT inhibit translation in E. coli cells containing the cat6xbsexpression plasmid. What experimental parameter could be changed in order to affect translation...
View ArticleGenetic recombination and conditional knockout KA Passage
https://www.khanacademy.org/test-pr...netic-recombination-and-conditional-knockouts This passage is giving me a migraine. I am not able to follow what is going on. The questions add to the confusion....
View ArticleMirror Neurons
Do mirror neurons also fire if you imagine a movement or action? and if you watch yourself in the mirror doing an action?
View ArticleClik here to view.
Do P/S questions like this really come up?
View attachment 207816 I have that list of psychologists, but never really thought it was necessary. Kudos to people who can remember all of them. Any thoughts?
View ArticleOfficial Guide C/P #19
Can someone explain #19 of the C/P section in the Official Guide? Here is the question: A scientist proposed that the 32P label was entering PE molecules by direct exchange (swapping phosphate groups...
View ArticleTbr acid/base
Confused about this question. I thought strong base and acid always create more ions in solution? Answer is d View attachment 207839 View attachment 207840 View attachment 207841 Sent from my iPhone...
View ArticleComparing H bonding in H2O, HF, NH3, and CH4
So H2O has the highest boiling point out of these four compounds because it can potentially form 4 H bonds. Why does HF have a higher BP than NH3? Doesn't NH3 form more H bonds than HF? Same goes for...
View ArticleBlotting Techniques
Which technique CANNOT be used to analyze gene expression? A. Western blotting B. Northern blotting C. Southern blotting D. rtPCR Since gene expression implies formation of a protein I was thinking...
View ArticleWestern Blot question
View attachment 207846 Is there typically a minimum concentration of protein needed for detection? For the RAD51 control cases, for example, would it be valid to say that no RAD51 is present? Or could...
View ArticleClik here to view.
Galvanic cell vs. electrolytic cell
Is this picture incorrect or is it just me? Here is info that I have, pls correct if I am wrong: Galvanic cells: anode-; cathode+. electrons will flow towards cathode, because it is being reduced...
View ArticleRadiation
How does radiation work in heat transfer? Sent from my iPhone using SDN mobile
View Article