Question 1: During the degradation of a protein, glutamate molecules are produced and
subsequently converted to $\alpha$-Ketoglutarate. When one $\alpha$-Ketoglutarate enters the TCA cycle and
is converted to the final product, oxaloacetate, through a series of reactions, how many ATP
molecules can be generated from its oxidation via the citric acid cycle? (1 NADH = 2.5 ATPs, 1
FADH2 = 1.5 ATPs, 1 GDP = 1 ATP)