BIOC 3021 Midterm Exam Questions And Verified Answers (100% correct verified solutions) Graded A+

BIOC 3021 Midterm Exam Questions And Verified
Answers (100% correct verified solutions) Graded
A+




Alanine, Ala, A - non-polar, aliphatic


Valine, Val, V - non-polar, aliphatic


Leucine - Leu, L


Isoleucine, Ile, I - non-polar, aliphatic

,Glycine, Gly, G - non-polar, aliphatic


Proline, Pro, P - nonpolar, aliphatic, Imino acid


Cysteine, Cys, C - sulfur containing pk=8.3


Methionine, Met, M - sulfur containing


Histidine, His, H - positively charged, Basic, pk=6.0


Phenylalanine, Phe, F - aromatic, non-polar


Tyrosine, Tyr, Y - aromatic, polar, pk=10.1


Tryptophan, Try, W - aromatic, polar


Asparagine, Asn, N - polar, uncharged


Glutamine, Gln, Q - polar, uncharged


Serine, Ser, S - polar, uncharged


Threonine, Thr, T - polar, uncharged

, Lysine, Lys, K - positively charged, basic, pk=10.5


Arginine, Arg, R - positively charged, basic, pk=12.5


Aspartic acid, Asp, D - negatively charged, acidic, pk=3.9


Glutamic acid, Glu, E - negatively charged, acidic, pk=4.3


major elements in organisms (bonding and abundance) - H, O, C, N
99%
Covalent


minor elements in living organisms (bonding and abundance) - P, Na, K, Ca, Mg, S,
Cl
0.7%
Ionic


trace elements (abundance) - Zn, Cu, Fe
0.3%


# essential minerals (bonding) - 17 ionic


types of chemical bonds - 1. covelent bonds: shared e-
2. ionic bonds: e- donated (cations and anions)
3. Hydrogen bonds: partial charge attraction