The primary energy source used by muscle cells to generate atp is

The answer is glucose, as a simple form of carbohydrates.

After we digest food, our body absorbs the glucose digested from carbohydrates. Then, through the circulatory system, the blood with a high glucose concentration is travelled to working muscles.

To generate energy, the muscles undergo aerobic respiration, or anaerobic depending on the supply of oxygen. We turn glucose to energy. Atp is a form of energy our body uses.

Ithink option a is correct because you cannot donate a different blood group than yours because it won't match.option a says betsy can donate to mark. they have the same blood group so donation can happen.

North carolina ranks second in christmas tree production has nothing to do with biotechnology