Question
The cell membrane is comprised of a class of these molecules with a phosphate head group and two fatty acid tails. For 10 points each:
[10e] Name these organic macromolecules that include waxes, sterols, and fats.
ANSWER: lipids [accept phospholipids]
[10m] Fatty acids are broken down by beta-oxidation—two carbons at a time—to produce this molecule. Oxaloacetate condenses with this molecule in the first step of the citric acid cycle.
ANSWER: acetyl-CoA [or acetyl-coenzyme A]
[10h] The final step of beta oxidation forms one of these functional groups between an acyl group and Coenzyme A. Fatty acids are activated by joining them to a CoA molecule via one of these high-energy groups.
ANSWER: thioester [reject "thiol" or “ester”]
<Biology>
Summary
| 2023 ACF Winter @ Columbia | 11/11/2023 | Y | 8 | 17.50 | 100% | 63% | 13% |
Data
| Columbia A | Vassar | 10 | 10 | 0 | 20 |
| Cornell C | Rutgers B | 10 | 10 | 10 | 30 |
| NYU B | NYU A | 10 | 0 | 0 | 10 |
| Penn A | Penn B | 10 | 10 | 0 | 20 |
| Princeton A | Columbia B | 10 | 0 | 0 | 10 |
| Bard A | Rowan A | 10 | 0 | 0 | 10 |
| Yale A | Princeton B | 10 | 10 | 0 | 20 |
| Haverford | Yale C | 10 | 10 | 0 | 20 |