Question

1. the graph shows the percentage of the cell that mitochondria fill by volume. the greater the percentage, the more mitochondria. what is the function of mitochondria? why do heart cells have a higher percentage of mitochondria than liver and pituitary gland cells?

Explanation:

Mitochondria are the power - houses of the cell, producing ATP through cellular respiration. Heart cells are constantly contracting and require a large amount of energy. Since mitochondria produce energy, heart cells have a higher percentage to meet their high - energy demands compared to liver and pituitary gland cells which have lower energy requirements.

Answer:

The function of mitochondria is to produce ATP through cellular respiration. Heart cells have a higher percentage of mitochondria than liver and pituitary gland cells because heart cells need a large amount of energy for continuous contraction, and mitochondria are the main energy - producing organelles in the cell.