AP BIOLOGY

Detailed explanation-1: -The plasma (cell) membrane separates the inner environment of a cell from the extracellular fluid. It is composed of a fluid phospholipid bilayer (two layers of phospholipids) as shown in figure 4.1. 2 below, and other molecules.

Detailed explanation-2: -The cell membrane separates the material outside the cell, extracellular, from the material inside the cell, intracellular. It maintains the integrity of a cell and controls passage of materials into and out of the cell.

Detailed explanation-3: -The nuclear envelope separates the contents of the nucleus from the cytoplasm and provides the structural framework of the nucleus. The nuclear membranes, acting as barriers that prevent the free passage of molecules between the nucleus and the cytoplasm, maintain the nucleus as a distinct biochemical compartment.

Detailed explanation-4: -The plasma membrane Both prokaryotic and eukaryotic cells have a plasma membrane, a double layer of lipids that separates the cell interior from the outside environment. This double layer consists largely of specialized lipids called phospholipids.

Detailed explanation-5: -The structure (consisting of a fatty-waxy substance) which separates the intracellular compartment from the extracellular compartment is called the Cell Membrane; what are the fundamental molecules that compose the Cell Membrane?