NEET BIOLOGY

Detailed explanation-1: -The nuclear membrane serves to separate the chromosomes from the cell’s cytoplasm and other contents. 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 plasma membrane, or the cell membrane, provides protection for a cell. It also provides a fixed environment inside the cell, and that membrane has several different functions. One is to transport nutrients into the cell and also to transport toxic substances out of the cell.

Detailed explanation-3: -The plasmodesmata is a channel through the plant cell wall that allows molecules and substances to move in and out of the cell. It also allows connection and communication between cells. Plasmodesmata (singular is plasmodesma), have two ways it can function.

Detailed explanation-4: -The cell membrane is a protective layer that surrounds every cell. It separates it from its external environment. It is found just inside the cell wall and is made up of complex lipids (fats) and proteins.