Functional groups | Properties of carbon | Biology | Khan Academy

Can someone explain me carbonyl group

yo W khan academy

this really helps me as a college student! i felt totally lost in my biology class haha khan academy has always been a real one

Thank you so much! I’m back in college taking a biology class. I was getting ready to cry trying to study for the exam. Finally it clicks!

One is never to old to relearn. I seem to be more fascinated at 56 then I was at 19 as a college student. You do a great job teaching I sure hope that is your profession.

Clear and easy to understand

How are you'll sooooo goodddd!!!🤯🤯

Is it possible for a molecule to have 3 carbonyl groups at the same time?

This guy ,this buziness,..are not compatible with a terse academic language.Brilliant but confusing

best video

Thank you sir!!!!

My AP bio teacher gave this to us to watch and take notes on, and you made it so much easier to understand. Thank you so much!

THANK YOU

R means rest of the molecule.

literally was freaking out about a pop quiz on this, life saver

I'm just starting out learning bio this in depth and man is it tricky to understand. Glad to have this great instruction

Thank you Lord Khan

this was great!

what does the weird "s" thing mean when he points out how one end is electronegative and the other is positive?

Taking Biology1107K this semester, have a test next week and I’m studying. Thank you for this!

Yo Sal! You da best! I wish you were my teacher! Keep up the good work!

Why is all of this in a class 10 book I'm studying?????

OPOPOPOPOPOP

Subscribed after just watching first min

I'm very confused:
1. In the glucose I noticed that the first and third carbon (consider from left to right) lack hydrogen. Is there an explanation for that?
2. In the amino acid, for the carboxyl group I didn't get how the oxygen being electronegative would want to get rid of the hydrogen; even if that's the case, would the oxygen form a double bond with the carbon? How can the carbon sustain more than its capacity?
3. Same question about the amino group

Thank you! This helped a lot!

very helpful

you pronounced carbonyl wrong

You forgot to mention the sub groups in carbonyl (aldehyde and ketone)

You are amazing. I always find myself fascinated by your educating ways.

Outstanding

thanks

life saver. got a bio midterm tomorrow

Helped me out a lot!!

Mr Khan literally teaching the world

voice??

I've been looking everywhere for visual explanation of the functional groups, and no one does it better than you Sal! Thank you so much!

Too much on the board to follow, sorry

usefullllll

Thank you ^_^

u said amino 'acid' and then u said that its a base???

how can both of them be carboxyl group

These videos are incredibly informative for me. For whatever reason the textbook would never be enough. Props to Khan Academy

Alejandro,
 
In the example you give you have a two scalars, the numbers 50.5 and 15, and two sets of units, the cm^3 and the cm^2.
 
In this case you've got no big problems, because numbers divide into numbers and c^3/cm^2 is simply cm (or cm^1 if you like).  So you've divided a volumve, 50.5 cm^3 by an area, the 15 cm^2, and naturally you ge a distance,  3.36666... cm.
 
If you think of this in physical terms, a volume divided by an area might be a question about "how high is a tower of something if you know the area of the base?"
 
Best,
 
-dlj.

Khan Academy In a division problem or any kind of problem can I for instance directly  dived 50.50cm^3 by 15.0cm^2 or would i have to convert one in order to do this problem

Thanks Sal.

I thhink that the carbone 4 in the fructose molecule is missing a hudrogen

Why is this video uploaded twice?

Now I see how peptide bonds can form. Excellent!