NUCLEAR MEMBRANES

Assertion (A): Rough ER is in continuation with nuclear membrane. Reason (R ): DNA controls the protein synthesis in rough ER.

Incorrect match among the following (A) RER - Cells actively involved in protein synthesis (B) SER - Lipid synthesis (C) RER - Connected to outer nuclear membrane (D) Peroxisome – Included in endo membrane system

Nucleus | | Structure OF nucleus - nuclear membrane, nucleoplasm, Chromatin

[A] : The nuclear envelope is the derivative of membrane of mitochondria . [R] : Nuclear membrane does not allow free exhange of ions between the nucleus and the cytoplasm .

Nuclear membrane, ER, Golgibody, Nucleus reapears in which stage of karyokinesis :-

Assertion : Euglena is an obligatory phototrophs. Reason : Euglena lacks nuclear membrane.

Assertion :- Nucleus is the organised structure remains surrounded by continuous membrane. Reason:- Nuclear membrane is permeable so no need of discontinuities.

[A] : Nuclear membrane of karyotheca forms an envelope-like structure called nuclear envelope around the nuclear contents . [R] : Each membrane is about 75-90 Å thick and lipoproteinous in nature .