What is the specific source of energy in apple cider that yeast used to perform cellular respiration?

The specific source of energy in apple cider that yeast uses to perform cellular respiration is the sugar content. Apple cider is made from fermented apple juice, and during fermentation, the yeast converts the sugars in the juice into alcohol and carbon dioxide. The yeast uses the energy released from this conversion to grow and reproduce.

The main sugar in apple cider is fructose, followed by glucose and sucrose. Yeast can metabolize all of these sugars through the process of glycolysis, which breaks down the sugars into pyruvate. Pyruvate can then be used to generate ATP, the energy currency of the cell, through the process of oxidative phosphorylation.

In addition to sugars, apple cider also contains other nutrients that yeast can use for energy, such as amino acids and lipids. However, the sugars are the primary source of energy for yeast in apple cider.