What is the link reaction in aerobic respiration?
a. pyruvate is carboxylated, acetyl reacts with coenzyme a, reducing nadh + h+
b. pyruvate is decarboxylated, acetyl reacts with coenzyme a, forming nadh + h+
c. pyruvate reacts with coenzyme a, forming nadh + h+
d. pyruvate is decarboxylated, reacting with coenzyme a, reducing nadh + h+

B. is the correct answer. - Pyruvate is decarboxylated, acetyl reacts with coenzyme A, forming NADH + H+

During the Krebs Cycle ( also known as the Citric Acid Cycle) the Pyruvate molecule decarboxylated ( meaning it lose a carbon a carbon dioxide molecule) and forms the molecule acetyl- coenzyme A also known as (acetyl CoA). Furthermore, NAD+ ( nicotinamide adenine dinucleotide)  reacts with H+ to form NADH