a) The absence of glucose in diet causes oxaloacetate to drop and also slows down the citric acid cycle.
b) odd numbered.
Explanation:
a) glucose gives out pyruvate through the process of glycolysis, and pyruvate is the main source of oxaloacetate. The absence of glucose in diet causes a drop in oxaloacetate and slows down the citric acid cycle.
b) odd numbered. The conversion of propionate to succinyl CoA provides a medium for both the citric acid cycle and four carbon precursors for gluconeogenesis.
