NEET BIOLOGY

CELL STRUCTURES AND FUNCTION

CELL ORGANELLE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which cell structure is referred to as the gatekeeper because it directs substances into and out of the cell?
A
Cell wall
B
Cell membrane
C
Nucleus
D
Vacuole
Explanation: 

Detailed explanation-1: -In its role as gatekeeper, the cell membrane regulates molecular traffic into and out of the cell via specialized membrane proteins. Ion channels, proteins that span the cell membrane, are a prominent example.

Detailed explanation-2: -The Cellular Membrane The cell membrane is selectively permeable to ions and organic molecules and controls the movement of substances in and out of cells. The basic function of the cell membrane is to protect the cell from its surroundings. It consists of the phospholipid bilayer with embedded proteins.

Detailed explanation-3: -Cell membrane The cell membrane encloses the cell. It acts like a gatekeeper-allowing some materials to pass through it, but not others. throughout the cytoplasm are Word Watch! Cell wall This outer barrier provides extra support for the cell and gives it a shape.

Detailed explanation-4: -By allowing some materials but not others to enter the cell, the cell membrane acts as a gatekeeper. The cell membrane also provides structural support to the cytoplasm, recognizes foreign material, and communicates with other cells, all of which contribute to maintaining homeostasis.

There is 1 question to complete.