What two molecules carry energized electrond to the second part of the cellular respiration process

The two molecules that carry energized electrons to the second part of the cellular respiration process are; NADH and FADH2.

NADH:

Nicotinamide adenine dinucleotide (NADH) is a coenzyme found in all living cells. The compound is a dinucleotide, because it consists of two nucleotides joined through their phosphate groups. One nucleotide contains an adenine nucleobase and the other nicotinamide.

FADH2:

Flavin adenine dinucleotide (FADH2) is a redox cofactor (A cofactor is a non-protein chemical compound or metallic ion that is required for an enzyme's activity) that is created during the Krebs cycle and utilized during the last part of respiration, the electron transport chain.