It's multiple choice the mitochondria converts chemical energy from food into atp be responsible for protein synthesis has a folded inner membrane called cristae is enclosed by two membranes stores lipids and steroids

The mitochondria converts chemical energy from food into ATP, is enclosed by two membranes (the inner and outer membrane) and has a folded inner membrane called cristae. Though it is not responsible for protein synthesis, the chromosomes are in charge of that and off of what I found it does not store lipids and steroids. That's all I can do to help you on this one. 

Amight be the answer