Question

the fluidity of the cell membrane is highly regulated such that some regions of membrane in a cell have very low fluidity while other regions of the same cell have higher fluidity. creating low fluidity regions is helpful to the cell because it helps to cluster together groups of proteins whose functions depend on on another. an example of this is the group of proteins that transmit signals from one brain cell to another.
some genetic disorders prevent the formation of low fluidity regions within cell membranes. what effect(s) do you predict these disorders will have on brain cells?
the effects will be very small because proteins are usually stationary within the membrane, regardless of the fluidity.
the brain cell membranes will be \leaky\ and let molecules in or out of the cell that cannot usually cross the membrane.
overall fluidity of the brain cell membranes will no longer decrease when temperature is decreased.
the transmission of signals between brain cells will be less efficient.

Explanation:

• Proteins that transmit signals from one brain cell to another depend on clustering in low - fluidity regions.
• If low - fluidity regions can't form (due to genetic disorders), protein clustering for signal - transmitting proteins won't occur as effectively.
• The function of these proteins (signal transmission) will be impaired.

Answer:

The transmission of signals between brain cells will be less efficient.