At the start of the krebs cycle, acetyl coa reacts with which molecule to form citrate, a six-carbon molecule? . . alpha-ketoglutarate. fumarate. oxaloacetate. succinate.

Astable electron arrangement for an atom is one that does not easily change. how is this arrangement arrived at? a. valence electrons are transferred or shared to create a full outer shell of electrons. b. valence electrons are discarded into space to create a full outer shell of electrons. c. protons (positive charge) pair with valence electrons (negative charge) to create a strong bond. d. outer shells with valence electrons are transferred or shared.