It's okay, we're not on a tight schedule. The animation is good, but I do have a few comments. Although I really like the deformation to the actual model, I do not think it will be possible to add it to the game (at least at the current moment). Another thing to note, the area the organelle is allowed to move around should not exceed more than twice its size, otherwise there is a chance that it will float outside the membrane and do all kinds of other funky behavior, which we don't want. Final thing, though this is just a matter of preference, I'd say the organelle should be constricted to the xy-plane, so they should not flip around. That said, it looks great; keep up the fantastic work!
Completely different topic
Here are the colors I propose for the organelles so that the player should always be able to figure out which one is which:
ER and Golgi Complex: brownish-yellow/orange
Storage vacuoles: Light blue
Agent secretors: depending on the compound they produce