Question
Das and Pappu's kappa measures the "mixing" of these moieties' charge. For 10 points each:
[10m] Name these moieties that distinguish amino acids. An amino acid consists of an amino group, a carboxyl group, a hydrogen atom, and one of these components around the alpha carbon.
ANSWER: side chains [prompt on R groups]
[10h] At neutral pH, these two amino acids have negatively charged side chains. These two amino acids are respectively symbolized D and E.
ANSWER: aspartic acid AND glutamic acid [accept aspartate in place of "aspartic acid"; accept glutamate in place of "glutamic acid"; accept answers in either order]
[10e] The side chains of serine, threonine, asparagine, and glutamine have this property despite being uncharged. Water has this property, in which opposite ends of a molecule carry different charges.
ANSWER: polarity
<Science - Chemistry>
Data
Summary
| Tournament | Edition | Exact Match? | Heard | PPB | Easy % | Medium % | Hard % |
|---|---|---|---|---|---|---|---|
| 2025 PACE NSC | 06/07/2025 | Y | 35 | 12.29 | 91% | 17% | 14% |