Cells have methods for breaking down proteins and other molecules that are no longer needed. These can then be removed from
the cell. Why is this waste removal necessary?
A. The waste products are necessary for respiration and photosynthesis in other cells
B. Cells must remove waste in order to keep other cell processes functioning property
C. Cells must remove waste because it is used to extract energy from food
D. The waste products are necessary for new cells to be made.