A. Cristae | (i) Flat membranous sacs in stroma |
B. Cisternae | (ii) Infoldings in mitochondria |
C. Thylakoids | (iii) Disc-shaped sacs in Golgi apparatus. |
Functions of nuclear pores :
1. The materials are exchanged between cytoplasm and nucleus through nuclear pores.
2. The proteins are passed in and out of the nucleus through nuclear pores.
3. The enzymes for synthesis of DNA and RNA are passed into nucleus through nuclear pores.
4. Ribosomal subunits and RNA are passed out from nucleus via nuclear pores.
5. m RNA and t RNA are passed out into cytoplasm via nuclear pores.