Aneutral atom can be negatively charged by

The correct answer is Gain of electron.

A neutral atom is the one, which does not carry any charge. This means that the number of electrons ( negative electric charge) and protons ( positive electric charge) are equal in this atom. When it gains an electron ( a subatomic particle with negative electric charge), it becomes negatively charged because the number of negative charge becomes more.

Thus, a neutral atom can be negatively charged by gaining an electron.

cellular respiration oxidizes food into energy in the form of atps.

glycolysis (6 c hexose) > 2x atps are used > 6c hexose biphosphate > 2 x 3c triphosphate >

2 x 3c pyruvate (2x nadh produced from nad) and (4x atp produced)

pyruvate actively pumped mitochondrial matrix.