2nd October 2019

quizlet
10

What are the six major functions of membrane proteins?

the 6 major functions performed by proteins of the plasma membrane.
  • Transport. MOVEMENT OF CHEMICALS INTO OR AROUND CELL.
  • Enzymatic activity. A protein built into the membrane with active site exposed.
  • Signal Transduction.
  • Cell-cell recognition.
  • Intercellular Joining.
  • Attachment to the cytoskelton & extracellular matrix (ECM)

Considering this, why are proteins important to cell membrane?

Scattered in the lipid bilayer are cholesterol molecules, which help to keep the membrane fluid consistent. Membrane proteins are important for transporting substances across the cell membrane. They can also function as enzymes or receptors. On the extracellular fluid side of a cell membrane, you find carbohydrates.

What is the function of the proteins that are embedded in the cell membrane?

Integral proteins are embedded within the lipid bilayer. They cannot easily be removed from the cell membrane without the use of harsh detergents that destroy the lipid bilayer. Integral proteins float rather freely within the bilayer, much like oceans in the sea.
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