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What causes the plasma membrane to resist freezing?
unsaturated fatty acid tails
Lamisil how it works on the body?
Lamisil (terbinafine) works by inhibiting an enzyme that is essential for the formation of ergosterol, a crucial component of fungal cell membranes. By disrupting the cell membrane structure, Lamisil causes the fungal cells to die, effectively treating fungal infections such as athlete's foot and jock itch.
What affects semipermeable membranes?
Semipermeable membranes can be affected by factors such as temperature, pressure, pH, and the size and charge of molecules attempting to pass through. Changes in these factors can impact the permeability of the membrane and its ability to selectively allow certain substances to pass while restricting others.
What condition in cells versus their environments causes water to move through cell membranes?
The difference in solute concentration between cells and their environments, also known as osmotic gradient, causes water to move through cell membranes. Water molecules move from an area of lower solute concentration to an area of higher solute concentration in an attempt to equalize the concentration on both sides of the membrane.
How does calcium affect membrane fluidity?
As heat increases, the membranes will become more fluid and as the temperature decreases it will solidify more. i.e. butter, in the fridge its solid but if you take it out then it will eventually melt.
What causes the plasma membrane to resist freezing?
unsaturated fatty acid tails
How are symmetric membrane any different from asymmetric membrane?
Symmetric membranes the diamter of pores is constant throughout the cross section of the membrane, as membrane thicknes causes drah to mass transfer. Where as asymmetric membranes the pore size at the surface have a different sixe compared with the holes at the bottom side. Large particles will not enter the the body of the membrane so plugging is avoided.
How does boiling disrupts the cell membranes of a leaf?
Boiling disrupts cell membranes by denaturing the proteins and lipids that make up the cell membrane. The high temperature causes these molecules to lose their structural integrity, leading to the breakdown of the membrane and releasing its contents.
The impact of freezing temperatures on living cells?
Freezing causes the water inside living cells to form sharp crystals. These crystals puncture and destroy the cellular organelles and membrane. Certain animals have 'cryoprotectants' that help reduce the damage caused by freezing.
What causes the cervix to become thin during pregnancy?
Similar to cell membranes, the membrane of the placenta is very thin to allow the exchange of useful substances from the mother to the fetus.
Lamisil how it works on the body?
Lamisil (terbinafine) works by inhibiting an enzyme that is essential for the formation of ergosterol, a crucial component of fungal cell membranes. By disrupting the cell membrane structure, Lamisil causes the fungal cells to die, effectively treating fungal infections such as athlete's foot and jock itch.
What is physical deterioration?
The Change in volume of structure due to temperature variation,freezing and thawing,unexpected deformations cracking etc.,causes physical deterioration.
How does it change for snowfall or freezing rain?
When it gets above freezing when it rains then it gets below freezing it causes freezing rain.
What affects semipermeable membranes?
Semipermeable membranes can be affected by factors such as temperature, pressure, pH, and the size and charge of molecules attempting to pass through. Changes in these factors can impact the permeability of the membrane and its ability to selectively allow certain substances to pass while restricting others.
Does Freezing require the removal of energy?
Yes, freezing requires the removal of energy from the substance being frozen in order to lower its temperature below its freezing point. This removal of energy causes the molecules to slow down and eventually form a solid structure.
What condition in cells versus their environments causes water to move through cell membranes?
The difference in solute concentration between cells and their environments, also known as osmotic gradient, causes water to move through cell membranes. Water molecules move from an area of lower solute concentration to an area of higher solute concentration in an attempt to equalize the concentration on both sides of the membrane.
What causes nasal membranes to be eaten away?
cocaine?
