Respuesta :

Answer:

Mitochondria release energy through aerobic respiration. Muscle cells need a lot of energy to contract (movement) so therefore they need more mitochondria to release more energy to do this.

Explanation:

scottmcfarland

Answer:

The simple answer is because muscle cells require the use of more ATP

Explanation:

There's not really more than that. Bladder cells do not require much ATP (unless you are peeing), unlike muscle cells which are almost always moving.