Which of the following is NOT a function of vacuoles?

The function of vacuoles in plant and fungal cells primarily revolves around storage, waste management, and, in some cases, maintaining turgor pressure. Vacuoles serve to store various substances, including nutrients, ions, and waste products, which helps to regulate the internal environment of the cell. They also play a key role in waste management by isolating and degrading harmful byproducts, and certain vacuoles can even aid in the degradation of proteins.

However, photosynthesis is a process primarily associated with chloroplasts in plant cells, where light energy is converted into chemical energy. While vacuoles can contain pigments that may contribute to coloration, they do not participate directly in the process of photosynthesis, thereby making this function unrelated to their role. Thus, while vacuoles contribute significantly to cellular processes, they are not involved in photosynthesis itself.