Poll RK Gupta Asked: November 29, 2021In: Class 9 Science Mitochondria have two membranes. The outer membrane is very _____(A)____, while the inner membrane is ____(B)_____. The outer membrane of mitochondria is very porous, while the inner membrane is deeply folded. (a) a=porousb=deeply foldedclass 9 science mcq solutionsclass 9th science cbsc sample paper