Do we have to memorize 20 amino acids with pka's for DAT?

[El Sol]

So I'm working through the Organic chem section of destroyer and I see a couple of questions related to amino acid structure at certain pH's, and I'm wondering if it's necessary to memorize the 20 amino acids with their pka's for the real DAT. What do you guys think?

---

Members don't see this ad.

 

[quikag1]

Nooo wayyyyy!!!!!!!!! Theres no way that we would be expected to know that, just understand the concepts and the properties that hold true for all AAs and you shoud be more than fine.
Good luck with the studying

 

[fancymylotus]

That would be what we call overkill.

I would, however know that glycine is the only optically inactive aa. And that the three basic ones are his lys arg. And the two acidic ones are asp and glu. And what makes an amino acid polar, and what makes an amino acid nonpolar. Oh and that basic aa require three mols of acid to deprotonate and acidic requires three moles of base.



edit: and that when pH<pI, the aa has a + charge and when pH>pI, the aa has a - charge.

 

[vhh007]

haha, there is no need to freak out 🙂 you do not need to know all that info

 

[El Sol]

haha, there is no need to freak out 🙂 you do not need to know all that info

😀 Thanks for the good news.

Fancymylotus, thanks for the good info. 👍