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Question 2 (b) The membranes of both B cells and the cancer cells are largely composed of phospholipids. Explain how, when the membranes are fused, the polar parts of the phospholipids from one cell will interact with the phospholipids from the other cell and how the nonpolar parts of the phospholipids from one cell will interact with the phospholipids from the other cell.

Respuesta :

The major component of cell membranes are lipids. They have two groups attached to them which are called “hydrophobic fatty acid tails” and “hydrophilic head”. B cells are called lymphocytic cells which provide immunity by secreting antibodies. Cancer cells are cells which continuously repeats itself to form a tumor structure.

When the polar parts interact hydrophobic tails are lined up with one and another. They form a membrane which diffuses creating a membrane of hydrophilic head on two sides facing water .Thus a brief explanation of how polar and the nonpolar parts combine are explained.

luisvaschetto

When cells fuse, hydrophobic phosphate groups of both cells interact with water; whereas hydrophobic fatty acid tails interact with one another in the interior of the bilayer.

  • The main component of the plasma membrane in all cells are monomers called phospholipids.

  • A phospholipid is a lipid molecule composed of glycerol (the backbone of a phospholipid), two fatty acids, and a polar phosphate group head.

  • The non-polar fatty acid chains are hydrophobic, while the negatively charged phosphate groups are hydrophilic.

  • When forming membranes from monomers, phospholipid molecules of the membrane organize themselves as a bilayer.

  • The polar phosphate groups tend to form hydrogen bonds with water and with other polar molecules on both the exterior and interior of the cell.

  • The fatty acid chains of the phospholipids interact with each other, which help to stabilize the lipid bilayer structure and these interactions are responsible for the membrane's properties.

In conclusion, when cells fuse, the polar phosphate groups interact with water on both the exterior and interior of the cell; whereas fatty acid tails interact with one another in the interior of the bilayer.

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