AP BIOLOGY

Detailed explanation-1: -An array of small holes or pores in the nuclear membrane permits the selective passage of certain materials, such as nucleic acids and proteins, between the nucleus and cytoplasm.

Detailed explanation-2: -The nuclear envelope has many nuclear pores that allow materials to move between the cytosol and the nucleus. Intermediate filament proteins called lamins form a structure called the nuclear lamina on the inner aspect of the inner nuclear membrane and give structural support to the nucleus.

Detailed explanation-3: -The nuclear envelope is a double-layered membrane that encloses the contents of the nucleus during most of the cell’s lifecycle.

Detailed explanation-4: -The plasma membrane is the outer lining of the cell. It separates the cell from its environment and allows materials to enter and leave the cell.

Detailed explanation-5: -In eukaryotic organisms, the genetic material is well enclosed by a distinct nuclear membrane and is said to be a true nucleus.