Since we are told that the sucrose crystals are broken down within several days of sucrose being eliminated from the medium, it appears that the cells have the ability to produce invertase, but probably in low levels.

Which of the following statements is true for mouse cells grown in culture?
(A) They do not normally have the ability to break down sucrose.
(B) ...
(C) ...
(D) ...
(E) ...

*This question is included in 10. Cellular Organelles