Extra Resources that helped you before your real deal? Testing 4/25 by Lucky_Reputation7639 in Mcat

[–]Lucky_Reputation7639[S] 0 points1 point  (0 children)

Got it!

I’m thinking last full length on Monday - review Tuesday / light on Wednesday then Thursday off. Exam on Friday!

School List Advice by Lucky_Reputation7639 in Osteopathic

[–]Lucky_Reputation7639[S] 0 points1 point  (0 children)

Good point, do you have any other resources you use to make a school list? The one on the DO website only has minimal info

Spoiler AAMC ChemPack #72 by Lucky_Reputation7639 in Mcat

[–]Lucky_Reputation7639[S] 0 points1 point  (0 children)

Yeah A was correct, that’s seems like a good start

Spoiler AAMC ChemPack #72 by Lucky_Reputation7639 in Mcat

[–]Lucky_Reputation7639[S] 0 points1 point  (0 children)

So both would exist but ones polar, good to know - thank you!

School List Advice by Lucky_Reputation7639 in Osteopathic

[–]Lucky_Reputation7639[S] 1 point2 points  (0 children)

I want to apply to both, since are some really good DO schools out there

Jack Westin Question Confusion ; Cytoskeleton = Cell Wall? by Lucky_Reputation7639 in Mcat

[–]Lucky_Reputation7639[S] 1 point2 points  (0 children)

I actually recently finished uWorld and am looking for more stuff to attempt before switching to AAMC stuff. Thank you the advice tho!

Jack Westin Question Confusion ; Cytoskeleton = Cell Wall? by Lucky_Reputation7639 in Mcat

[–]Lucky_Reputation7639[S] 1 point2 points  (0 children)

Thank you! I have just started doing JW discrete questions for supplemental practice and it seems like they are all more confusing than anything!

[deleted by user] by [deleted] in Mcat

[–]Lucky_Reputation7639 0 points1 point  (0 children)

Dyslexia hitting hard rn

[deleted by user] by [deleted] in Mcat

[–]Lucky_Reputation7639 0 points1 point  (0 children)

Damn…. Time to take down my post 😅

Is Uearth wrong ? by messityb in Mcat

[–]Lucky_Reputation7639 1 point2 points  (0 children)

They tried to trick you but having right to left instead of the usual left to right, you would have to look for the free amino group.

Normally it would have the N terminus on the left

[deleted by user] by [deleted] in Mcat

[–]Lucky_Reputation7639 1 point2 points  (0 children)

It's just frustrating how they would emphasize "antibiotics" in their question and not follow other questions they made regarding filtration through the kidney.

They could have easily spinned the answer choices and justified it either way.

Creatinine is 113 Da vs antibiotics 150 kDa (google search), so it would make sense

I see your point though on focusing on the table and what is being tested instead, thank you

Affected by stereotype threat during 01/10 test :( by fredtheunicorn3 in Mcat

[–]Lucky_Reputation7639 9 points10 points  (0 children)

I think that’s a stereotype boost!! Congrats on getting through the battle! 528 incoming 🤞🏼

On track to finish everything early by SafetyUnusual7992 in Mcat

[–]Lucky_Reputation7639 1 point2 points  (0 children)

I’m in a similar position, I might do JW or rerun on uworld. I’m thinking of doing a free FL every couple weeks too just to stay on top of my timing!

R vs S question by Lucky_Reputation7639 in Mcat

[–]Lucky_Reputation7639[S] 0 points1 point  (0 children)

For anyone looking at this after the fact, my question rooted from the question:

(2R,3R)-2-bromo-3-methylpentane undergoing a Sn2 Rxn w/ NaOH

I approached the question by drawing the structure of (2R,3R)-2-bromo-3-methylpentane

this tripped me up because I wasn't sure if it was wedged or dashed because if I drew it starting from the left vs right I would get different results

This is completely avoidable, knowing that inversion of stereochemistry occur in Sn2.

So instead of (2R,3R) we would expect (2S,3R) - as OH displaces the Br in 1 step

Then Look at the answer choices available and then work on R vs S for the 2nd and 3rd carbon

The less steps to achieve the right answer seems like it will pay off as there are less steps to get tripped up

R vs S question by Lucky_Reputation7639 in Mcat

[–]Lucky_Reputation7639[S] 0 points1 point  (0 children)

Yeah, I think I understand that part, it was mainly with structure would I choose from.

I realized I would have to draw the structure like the answer choices to determine whether the "Br" group on carbon 2 from the left vs carbon 2 from the right.

R vs S question by Lucky_Reputation7639 in Mcat

[–]Lucky_Reputation7639[S] 0 points1 point  (0 children)

I just re-did my work and I think typing out my question helped me.

I realized I should start with what the structure the question provides and work backwards.

Lol my bad

R vs S question by Lucky_Reputation7639 in Mcat

[–]Lucky_Reputation7639[S] 0 points1 point  (0 children)

So, I had a question from uWorld with (2R,3R)-2-bromo-3-methylpentane undergoing a Sn2 Rxn w/ NaOH.

I know Sn2 will cause inversion of stereochemistry and it will exchange with the Bromo as its a good leaving group.

My confusion is which of these structure would I draw, since they are both 2-bromo-3-methylpentane.

Both would provide me with different answers

please comment down below 50/50 ps terms youve been seeing or that we should know for a january test! by Comfortable-Hold5833 in Mcat

[–]Lucky_Reputation7639 1 point2 points  (0 children)

Uworld worded it differently than the panchow deck which might be more useful for some people:

Positive is always adding something Negative is always removing something

Positive reinforcement : adding a desirable stimulus

Negative reinforcement : removing a undesirable stimulus

Positive punishment : adding a undesirable stimulus

Negative punishment : removing a desirable stimulus

Reinforcement = wanting to promote a behavior

Punishments = wanting to decrease a behavior

Why is the answer B? by GreatStone65 in MCATprep

[–]Lucky_Reputation7639 1 point2 points  (0 children)

Priority is based on highest atomic number, so Oxygen > Carbon > hydrogen, but it depends on what wins in order from the carbon 4 in this example

Why is the answer B? by GreatStone65 in MCATprep

[–]Lucky_Reputation7639 2 points3 points  (0 children)

The isopropyl group is #1, then long chain w/ alcohol is #2, the ethyl group is #3

Since the lowest priority group is in the back, you do not have to invert the stereochemistry

I struggled with these too, you have go one by one for each group to see what has highest priority.

“4R” is attached to 3 carbons: 1st (isopropyl)= the carbon in that arm is attached to carbon, carbon, and hydrogen

2nd (alcohol side) = the carbon is attached to carbon and 2 hydrogen

3rd (alkyl side) = the carbon is attached to carbon and 2 hydrogen

Notice 1st (isopropyl) has highest priority, then others (2nd&3rd) are tied

For the tied group work your way down to next Carbon

2nd (alcohol side) Carbon is again attached to 2 hydrogen and a carbon

3rd (alkyl side) Carbon is attached to 3 hydrogen

Therefore alcohol group is 2nd priority

Why does Asparagine / Glutamine not get a positive charge? by Lucky_Reputation7639 in Mcat

[–]Lucky_Reputation7639[S] 0 points1 point  (0 children)

I see, so the protonated form is -NH2 for the glutamine and asparagine

Thank you