Lecture 9: Key Summary Points

Question 1

In the Urea Cycle, give the name of the intermediate that carries two nitrogen and exists in both cytoplasm and mitochondrion.

Answer 1

Ornithine

Question 2

Miscarriage is related with protein degradation in the cellular compartment of ___. The protein itself is labeled with ___ for destruction.

Answer 2

proteosome, ubiquitin

Question 3

Cysteine, with 3 carbons, is degraded into ___

Answer 3

pyruvate

Question 4

Two important equations for electro potential are…

Answer 4

ΔG= -nFΔE and ΔG°= -nFΔE°’

Question 5

Calculate the ΔE° for the reaction catalyzed by lactate dehydrogenase.

Answer 5

Answer: 0.13 eV

Question 6

Calculate the ΔG° of the previous reaction

Answer 6

-25.09 kcat/mol