Question

1. how do animal cells produce energy to sustain life?

Explanation:

Animal cells produce energy mainly through cellular respiration. In the cytoplasm, glucose is broken - down to pyruvate in glycolysis. Then, in the mitochondria, pyruvate is further oxidized in the citric - acid cycle and oxidative phosphorylation occurs, generating ATP (adenosine triphosphate), the energy - currency of the cell.

Answer:

Animal cells produce energy mainly through cellular respiration which includes glycolysis in the cytoplasm and the citric - acid cycle and oxidative phosphorylation in the mitochondria to generate ATP.