Hi. It’s Mr. Andersen and in this video I’m going to talk about proteins. Proteins are incredibly important because that’s what we’re made up of. When you look at me you’re looking at my proteins. We just completed the human genome project and we figured out the DNA in a typical human but now we’re […]

Are BCAA’s Worth It? (Branched Chain Amino Acids Review)

What’s up, guys. Sean Nalewanyj here, and today I’m going to be doing a review of branched chain amino acid supplements. So BCAAs are one of the most popular muscle building supplements on the market, they’re surrounded by a lot of hype and in this video I’ll be giving you the honest, unbiased facts […]

The Benefits of Amino Acids

The Benefits of Amino Acids Todd: Hi, my name’s Todd from Sporty’s. Just here today with Dale from Optimum Nutrition. There’s a lot of talk these days about amino acids and the benefits of amino acids, and also protein powder. I think in the market people generally understand what protein powder is and what the […]

Amino Acid Effective Charge (Quiz)

PROFESSOR: Let’s look at the amino acid cysteine at a specific pH. So here I’ve drawn cysteine, and I’ve shown you the pKa’s of each group. So the pKa of this proton, the pKa of one of these protons, and the pKa of this proton. The question is at pH 5, what’s the overall charge? […]

Zwitterion and Amino Acid Charge Given pH and pKa

Leah here from and in this video we’re going to look at zwitterions and finding the charge of an amino acid. Amino Acid are often drawn in the neutral form such as glycine represented here. We have the alpha carbon with the hydrogen and side-chain, the alpha carboxy group and the alpha amine. That’s […]

Classification of amino acids | Chemical processes | MCAT | Khan Academy

All right. So let’s go through the classification of amino acids. And I’ve highlighted the word class within classification for you, because I’m going to paint for you a picture of a classroom that is full of 20 different amino acids. And just picture this as the most diverse classroom you’ve ever seen, because each […]

Isoelectric Point of Amino Acids with MCAT Shortcut

Leah here from and in this video, were going to look at how to find Isoelectric Point or PI for amino acids. The Isoelectric point comes from Iso- meaning the same and electric meaning charge. The Isoelectric point is the point at which the amino acid has the same charge or rather a net […]

Introduction to amino acids | Macromolecules | Biology | Khan Academy

– DNA gets a lot of attention as the store of our genetic information, and it deserves that. If we didn’t have DNA, there would be no way of keeping the information that makes us us, and other organisms what those organisms are. And DNA has some neat properties, it can replicate itself, and we […]