Since the Krebs Cycle Is a Cyclic Pathway,the Original Acceptor

Multiple Choice

Since the Krebs cycle is a cyclic pathway,the original acceptor needed to start the Krebs cycle and the end product of the Krebs cycle are

A) enzymes.
B) different molecules.
C) ATP molecules.
D) the same molecule.
E) NADH and FADH₂ respectively.