The presence of a large member of mitochondria in a cell indicates that

The presence of a large number of mitochondria in a cell indicates that the cell is very active. Mitochondria are organelles in cells responsible for producing energy through respiration. The more mitochondria a cell has, the more energy it can produce. Therefore, cells with high energy demands, such as muscle cells, have a higher number of mitochondria compared to cells with lower energy demands, such as skin cells. So, the presence of a large number of mitochondria in a cell is an indicator of its high activity level.