During cellular respiration, cells break down sugars to release energy. In this process, water and carbon dioxide are produced as waste products.

Question

What must happen to these waste products for a cell to maintain homeostasis?

They must be digested and used as food.
They must be used for photosynthesis.
They must be permanently stored inside the cell
They must be excreted from the cell.

Answer 1

To maintain homeostasis, the waste products of cellular respiration—water and carbon dioxide—must be excreted from the cell. This allows the cell to regulate its internal environment and remove excess substances that could be harmful. Therefore, the correct answer is:

They must be excreted from the cell.