which is a characteristic of the lipids in a biological membrane?a.the fatty acids of lipid molecules are found in the interior of the membrane.b.lipid molecules are held in fixed positions by non-covalent bonds with proteins.c.specific glycerophospholipids are distributed equally on the two membrane surfaces.d.the fluidity of the membrane decreases with lower levels of saturated fatty acids.



Answer :

The characteristic of the lipids in a biological membrane is the fatty acids of lipid molecules are found in the interior of the membrane

Describe the cell membrane.

  • Cell membranes serve to separate and group cells.
  • Every cell has an exterior plasma membrane that controls both what and how much of any given material enters the cell.
  • Eukaryotic cells, unlike prokaryotes, have internal membranes that enclose their organelles and regulate the exchange of vital cell components.
  • Both kinds of membranes have a unique structure that makes it easier for them to perform the gatekeeping job.
  • With a few rare exceptions, glycerophospholipids, which are made up of glycerol, a phosphate group, and two fatty acid chains, are the primary component of cellular membranes, including plasma membranes and interior membranes.
  • The three-carbon molecule glycerol serves as the framework for these membrane lipids. Fatty acids are connected to the first and second carbons of the glycerol backbone within a single glycerophospholipid, while the phosphate group is attached to the third carbon.
  • The phosphate has various head groups linked to it.
  • These molecules' cylindrical structure is revealed by space-filling models, a geometry that enables glycerophospholipids to align in parallel to form broad sheets.

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