Match the following Column I Column II (a) Cristae (i) Flat membranous sacs in stroma (b) Cisternae (ii) Infoldings in mitochondria (c) Thylakoids (iii) Disc-shaped sacs in Golgi apparatus

(a)–(ii)

• Cristae are the infoldings of the inner mitochondrial membrane that increase surface area for oxidative phosphorylation

(b)–(iii)

• Cisternae are the flattened, disc-shaped pouches of the Golgi apparatus where proteins and lipids are modified and sorted

(c)–(i)

• Thylakoids are the flat membranous sacs within the chloroplast stroma that contain chlorophyll and host the light-dependent reactions of photosynthesis