( ( ( Double ( membrane ( ( similar ( to plasma ) ) membrane ) ) ) ( of ( ( cell , ) ( ( outer layer ) ( smooth ( , ( inner layer ) ) ) ) ) ) ) ( ( ( ( folded inwards ) repeatedly ) ( to ( form Cristae ) ) ) . ) )
(ROOT (S (NP (NP (RB Double) (JJ membrane) (ADJP (JJ similar) (PP (TO to) (NP (NN plasma)))) (NNS membrane)) (PP (IN of) (NP (NP (NN cell)) (, ,) (NP (NP (JJ outer) (NN layer)) (NP (JJ smooth) (, ,) (JJ inner) (NN layer)))))) (VP (VBD folded) (NP (NNS inwards)) (ADVP (RB repeatedly)) (S (VP (TO to) (VP (VB form) (NP (NNP Cristae)))))) (. .)))
Double membrane similar to plasma membrane of cell, outer layer smooth, inner layer folded inwards repeatedly to form Cristae.
(ROOT (S (NP (NP (DT The) (JJ outer) (NN layer)) (PP (IN of) (NP (DT the) (NN sun)))) (VP (VBZ is) (VP (VBN made) (PRT (RP up)) (PP (IN of) (NP (NN plasma))))) (. .)))