After glycolysis occurs, the products may enter the krebs cycle. which major products result from these reactions?
nad+ and fad
atp and nadh
atp, fadh2, and nadh
pyruvic acid and atp

The third option from top is the answer. The major products that result from the Krebs cycle are NADH,  FADH and ATP in that order.

The Krebs cycle is the central metabolic pathway in all aerobic organisms. The cycle is a series of eight reactions that occur in the mitochondrion. These reactions take a two carbon molecule called acetate and completely oxidize it to carbon dioxide.

The Krebs cycle serves two main purposes namely:

1.To increase the cell's ATP producing potential by generating  reduced electron carriers such as NADH and reduced ubiquinone.

2. To provide the cell with a variety of metabolic precursors.

By the time the eight reactions in Krebs cycle are over, one ATP, one FADH and four NADH molecules will have been produced

carbohydrates: (starches and sugars) composed of carbon, hydrogen, and oxygen.

lipids: (fats, oils, and waxes) are made of carbon and hydrogen atoms.

nucleic acids: contain hydrogen, oxygen, nitrogen, carbon, and phosphorus. they are polymers of nucleotides. a nucleotide has three parts, a 5-carbon sugar, a phosphate     (-po⬇️4) group, and a nitrogenous base.

proteins: made up of nitrogen, carbon, hydrogen, and oxygen. they are polymers of amino acids.

the most common energy conversion is from kinetic energy to potential energy, and then from potential energy to kinetic energy.

later on comes the heat energy, mechanical energy, and other energy conversions.

this energy conversion is so common that we can find it in our day to day lives as well.

- one of the most common energy conversions involves the changing of potential energy to kinetic energy or kinetic energy to potential energy