A culture of bacteria is fed glucose containing radioactive carbon and is then examined. During the citric acid cycle, radioactive carbon would first appear in

Question

Quizplus · Accepted Answer

During the citric acid cycle, acetyl-CoA (formed from the breakdown of glucose) combines with oxaloacetate to form citrate. This is the first step in the cycle at which radioactive carbon would appear.

A Culture of Bacteria Is Fed Glucose Containing Radioactive Carbon