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Leah4sci MCAT
Добавлен 14 май 2014
MCAT content, strategy, study tips and more, everything you need to prepare for your upcoming Medical College Admissions Exam
How to Draw Fischer Projections
Leah4sci.com/Fischer presents: Introduction to Fischer projections including how to quickly draw and interpret them for molecules with single and multiple chiral centers
📺Watch Next: Fischer Projection Stereochemistry RS Chirality ruclips.net/video/S7uWtkcaCQc/видео.htmlsi=fJDXV-nIl2581lGM
Tired of conflicting and confusing MCAT advice? Access My FREE guide for everything MCAT prep: leah4sci.com/MCATguideYT
In this video you’ll learn all about Fischer projections including what they are, how to read them, how to quickly draw and convert 3D molecules into Fischer projection and back without ever having to build a model kit.
You’ll learn a number of different methods for converting 3D to Fisch...
📺Watch Next: Fischer Projection Stereochemistry RS Chirality ruclips.net/video/S7uWtkcaCQc/видео.htmlsi=fJDXV-nIl2581lGM
Tired of conflicting and confusing MCAT advice? Access My FREE guide for everything MCAT prep: leah4sci.com/MCATguideYT
In this video you’ll learn all about Fischer projections including what they are, how to read them, how to quickly draw and convert 3D molecules into Fischer projection and back without ever having to build a model kit.
You’ll learn a number of different methods for converting 3D to Fisch...
Просмотров: 1 251
Видео
Memorize and Draw the 20 Amino Acids
Просмотров 2 тыс.Месяц назад
Leah4sci.com/AminoAcids presents: Memorize all 20 amino acids in JUST 10 MINUTES including their full name 3 & 1 letter abbreviation, side chains and characteristics 📺Watch Next: ruclips.net/video/-j0796RPGtI/видео.html Tired of conflicting and confusing MCAT advice? Access My FREE guide for everything MCAT prep: leah4sci.com/MCATguideYT Knowing the amino acids is CRITICAL for the MCAT. This vi...
MCAT Math Without a Calculator Simplified with Shortcuts
Просмотров 5 тыс.2 месяца назад
Leah4sci.com/MCATMath presents: Introduction to MCAT Math without a calculator including what you need to know, and shortcuts to quickly solve everything from multiplication with decimals and scientific notation, negative logs and trigonometry 📺Watch Next: Multiplication and Division Decimal Trick for MCAT Math ruclips.net/video/8DKz7Vnq7N8/видео.htmlsi=-YFe2WJaJzxSegPT Tired of conflicting and...
Fischer to Haworth shortcut for Glucose and Fructose
Просмотров 2,8 тыс.2 месяца назад
Leah4sci.com/Fischer presents: Fischer to Haworth shortcut for Glucose and Fructose 📺Watch Next: How to Draw Fischer Projections ruclips.net/video/OCfTyNkIt40/видео.html Tired of conflicting and confusing MCAT advice? Access My FREE guide for everything MCAT prep: leah4sci.com/MCATguideYT This video will walk you through the mechanism for interconverting between the linear and ring forms of bot...
Peptide Isoelectric Point with pI Shortcut
Просмотров 2 тыс.2 месяца назад
Leah4sci.com/aminoacids presents: Peptide Isoelectric point without a calculator. Quickly find the isoelectric point for amino acid chains without a calculator using my shortcut for drawing the peptide quickly, simplifying the memorized pKa values, and a fun MCAT trick for figuring out which specific pKa values to average 📺Watch Next: Memorize and Draw the 20 Amino Acids ruclips.net/video/Ae6hf...
Amino Acid Stereochemistry - R & S vs D & L
Просмотров 3,5 тыс.4 месяца назад
Leah4sci.com/aminoacids presents: Amino Acid Stereochemistry from R and S to D and L with a review of ranking priority (Cahn-Ingold-Prelog), Fischer Projections, along with a time-saving MCAT amino acid shortcut 📺Watch Next: How to Draw Fischer Projections ruclips.net/video/OCfTyNkIt40/видео.html Tired of conflicting and confusing MCAT advice? Access My FREE guide for everything MCAT prep: leah...
Multiplication & Division (No Calculator) Decimal Trick for MCAT Math
Просмотров 6 тыс.5 месяцев назад
Leah4sci.com/MCATmath presents: Easy MCAT Multiplication and Division of large numbers and decimals without a calculator using the decimal trick 📺Watch Next: MCAT Math Without a Calculator Simplified with Shortcuts ruclips.net/video/b_1LwWcBb-Q/видео.html Tired of conflicting and confusing MCAT advice? Access My FREE guide for everything MCAT prep: leah4sci.com/MCATguideYT This video will walk ...
The MCAT Study Dilemma: Are You Wasting Time?
Просмотров 1,7 тыс.Год назад
The MCAT Study Dilemma: Are You Wasting Time?
No More MCAT Dates? (When They'll Reopen)
Просмотров 1,4 тыс.Год назад
No More MCAT Dates? (When They'll Reopen)
Stop Missing Chem/Phys Questions Due to Non-Calculator Math
Просмотров 9 тыс.Год назад
Stop Missing Chem/Phys Questions Due to Non-Calculator Math
How To Break an MCAT Plateau and Raise Your MCAT Scores
Просмотров 3,4 тыс.Год назад
How To Break an MCAT Plateau and Raise Your MCAT Scores
3 Month MCAT Study Plan - Weekly Targets and Goals
Просмотров 3,6 тыс.2 года назад
3 Month MCAT Study Plan - Weekly Targets and Goals
Electrolytic Cells - Nonspontaneous Redox Reactions
Просмотров 34 тыс.2 года назад
Electrolytic Cells - Nonspontaneous Redox Reactions
Galvanic / Voltaic Electrochemical Cells
Просмотров 13 тыс.2 года назад
Galvanic / Voltaic Electrochemical Cells
Static and Kinetic Friction - Forces in MCAT Physics
Просмотров 9 тыс.2 года назад
Static and Kinetic Friction - Forces in MCAT Physics
What Is The MCAT? 5 Minute Overview of Subjects, Sections, Timing and more
Просмотров 12 тыс.2 года назад
What Is The MCAT? 5 Minute Overview of Subjects, Sections, Timing and more
Logarithms and Antilogs Without a Calculator (MCAT Shortcut)
Просмотров 39 тыс.2 года назад
Logarithms and Antilogs Without a Calculator (MCAT Shortcut)
Volume, Surface Area and Perimeter without a Calculator - MCAT Geometry
Просмотров 8 тыс.2 года назад
Volume, Surface Area and Perimeter without a Calculator - MCAT Geometry
MCAT Prereqs And What to do if You Haven't Taken Them
Просмотров 5 тыс.3 года назад
MCAT Prereqs And What to do if You Haven't Taken Them
Glycolysis Payout Phase - Steps 6-10 (part 2)
Просмотров 10 тыс.3 года назад
Glycolysis Payout Phase - Steps 6-10 (part 2)
Glycolysis Steps 1-5 Cellular Respiration Investment Phase
Просмотров 18 тыс.3 года назад
Glycolysis Steps 1-5 Cellular Respiration Investment Phase
5 Steps To Studying & Mastering MCAT Sciences
Просмотров 8 тыс.3 года назад
5 Steps To Studying & Mastering MCAT Sciences
Limiting Reactant, Excess Reagent and Product Yield
Просмотров 4 тыс.4 года назад
Limiting Reactant, Excess Reagent and Product Yield
Balancing Redox Equations in Base + Practice
Просмотров 3,9 тыс.4 года назад
Balancing Redox Equations in Base Practice
How to Stay Alert for the 6:30am, 12:15pm and 6pm MCAT
Просмотров 3,6 тыс.4 года назад
How to Stay Alert for the 6:30am, 12:15pm and 6pm MCAT
Passage Timing for the Shorter MCAT - Revised Pacing Strategy
Просмотров 4,3 тыс.4 года назад
Passage Timing for the Shorter MCAT - Revised Pacing Strategy
How To Practice AAMC Exams in 5:45 For the Shorter MCAT
Просмотров 6 тыс.4 года назад
How To Practice AAMC Exams in 5:45 For the Shorter MCAT
Thank you so much for all the videos you do. Quick question for you, does Khan academy still have the 300pg PS document? I can’t seem to find it
I love it! single-handedly saving lives here !!
I needed this so bad, thank you Leah! I have been struggling the last few months studying full time for this exam to only have plateau and not improve with my FL exams. I have taken 4 full length AAMC exams and have practiced CARS, went through Kaplan, and did a bit of Anki. I think my issue is trying to do a lot in a little bit and I don’t get the most out of my studying-surface level learning(exposure) is not enough for me, and I recognize that now. I need time and probably have to go about using my resources in a consistent and effective way. You will always be a core part of my college education and journey to becoming a doctor.
thank you. I really needed this.
Wow❤❤❤ im from chile i'm studying nursing i've always accomplished with chemistry, but you saved meee 😭😭😭😭 thank you very much!!!!!
I’m prepping for McAT and the math is just kicking my behind. I’m currently going through your MCAT videos. I am so so grateful for you!
Aww you are so very welcome! Make sure to check out this recent video ruclips.net/video/b_1LwWcBb-Q/видео.html I also have many math resources at leah4sci.com/MCATmath
A very useful video!
Glad you liked it!
True!! I really wish I knew this
Happy to help!
Re 6:26: Would 8.5 be close enough, Leah? I'm using these as my values (I've already memorized them, but I could memorize more specific values if you think it's necessary): Carboxyl: 2 D = 4 E = 4 H = 6 C = 8 Y = 10 K = 11 R = 12 Amino = 9 Thank you!!
Thank you for the video. In general what types of doctors do your students seek out to confirm their accommodations with the MCAT board?
Great video. The left/right eye method is one in which I will never understand. I'm sticking with the R/S guess/check method
I don't think the virus pushes at all....lol To push means it has some energy but that is not it You would have to learn about clathrins and stop saying push. It is almost like a lock and key system with the virus and if the receptors on the host match with the those on the viral particles, the cell takes the virion in via endocytosis(rme).
I was really scared abt maths in the med exam thks for these it’s so cool - Do more!!!!! 🌺
So glad you like it! Have you seen this? leah4sci.com/mcat/mcat-math-without-a-calculator/
Thank you so much ❤️
You’re welcome 😊
Hi! Around 9:00 into this video, why won’t H2O do nucleophilic attack into the imine on the right (where N has positive charge with 4 bonds total)? Why does O in OH group have to form double bond with the carbon and kick out C-N pi bond to the nitrogen for H2O to then attack the carbonyl Carbon? Is it because C=O+ makes electrophilic carbon more electrophilic than C=N+?? Thank you!
Thanks. I tookn't chem in high school or college and known't much of anything about it. I'm preparing to startify initiating commencement of beginnification of learning it.
you're so welcome!
Cries *
Sending hugs, you CAN reach for your dreams!
😮😮😮
??
Just to check if I got that right haha Basically, in here, the (-) side of the cell is giving electrons to the +ions by the cathode, and the (+) side is receiving electrons from the -ions by the anode. The cathode is reducing ions, and the anode oxidizing them. In the galvanic cell, the cathode is still reducing, but it's reducing what exactly, the anode? So, the metal in the cathode goes to the ion form, getting itself oxidized while reducing the anode, which is oxidizing the cathode while reducing the +ions in the other solution? I am a bit lost in this one Is everything right?
I'm working on a comparison video that goes into detail about the differences. I hope to have it out in a few days
@@Leah4sciMCAT Already got my exam haha but thanks, I will check it
are we supposed to convert g to kg? or can we use g in this case?
If you're working through calculations, you have to make sure units are consistent. If you're dealing with two different units for weight you have to convert one to the other
Whattttt i dont understand 😭😭😭 amd my test is tomorrow 😭😭
I'm sorry you weren't understanding! How do you feel about your exam?
🔥 Thank you.
you're welcome!
I want to cries everytime I study for the MCAT. I swear I can feel physical pain looking at these 😢
I'm so sorry to hear that! Have you checked out the resources on leah4sci.com/mcat? I want to help you reach your MCAT goal
Why is the carbonyl and H in the wrong place at 10:30? Why are you swapping?
Correct form for a Fischer projection is to have the main carbon chain along the vertical backbone of the structure. That means, by convention, the carbonyl carbon should be on the vertical line and not the horizontal. One swap of the carbonyl and hydrogen changes this to follow convention, but then we have to do the second swap to maintain the R configuration of alanine.
@@Leah4sciMCAT thank you for taking the time to explain :)
2:58 how to decide, which carbon to rotate?
When we talk about rotation, we're talking about rotating a carbon to carbon BOND. You could think of it as making the substituents on both carbons face in the same direction. So it's really a matter of perspective. Do you want to draw your Fischer projection by looking at the molecule from below? Then, rotate so that the substituents on both carbons are facing down. Or, do you want to draw your Fischer by looking at the molecule from above? Then, rotate so that the substituents on both carbons are facing up.
I don't want to know where Mr. Organic Chemistry wears his second bow tie. I knew he was a perv. 😂
😆🤦 on his neck? on the first button of his shirt?
your math videos for the MCAT are super helpful
So glad you're finding them helpful
omg this video is so good.
Thank you! Hope this clarifies everything for you
Aspartic acid's mnemonic was a total jumpscare
Haha oh?
Thank you so much mam
You're so welcome 😊
Really helpful ❤
Glad it was helpful!
this was sooo helpful thank you so much!!! just a quick question i was wondering if there's a way to do inverse of sin, cos and tan? or if there's a video already up i can watch?
I don't have a video on it. I try to look at the numbers and bring it close to something I can reason backwards using the tricks I share here
Thx u so much! ❤
you're so welcome!
Thanks for helpful info
My pleasure, so happy to help!