Q. The structures that are formed by stacking of organized flattened membranous sacs in the chloroplasts are :

Q. The structures that are formed by stacking of organized flattened membranous sacs in the chloroplasts are :

Q. The structures that are formed by stacking of organized flattened membranous sacs in the chloroplasts are :

A. Stroma

B. Cristae

C. Grana

D. Stroma lamellae

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