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If you transferred a phospholipid bilayer from water to oil what effect would this have on the membrane?
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Explain what effect more cholesterol in the plasma membrane will have on the membrane?
the cholesterol will help to prevent the fatty-acid tails of the phospholipids bilayer from sticking together, which contributes to the fluidity of the plasma membrane.
Effect of double bond in fatty acids to its melting point?
double bonds mean the fatty acid is unsaturated and kinky which makes its packing difficult in the phospholipid bilayer and hence this drop the melting point
How does the structure of phospholipids linear molecules with a polar end and a nonpolar end relate to their function in the cell membrane?
Which is the effect of having the polar and nonpolar ends of phospholipid molecules oriented as they are in this illustration?
What makes it possible for the plasma membrane to self assemble?
The plasma membrane is able to self-assemble due to the properties of its constituent molecules, such as phospholipids. Phospholipids have hydrophilic heads and hydrophobic tails, which drives them to form a bilayer structure when exposed to water. This spontaneous assembly is driven by the hydrophobic effect and results in the formation of a stable and selectively permeable membrane.
What effect does a detergent have on the integrity of cells if a lipid is added to the detergent?
A detergent would bring about the deterioration of cell integrity. This is because the cell's membrane consists of lipids and proteins. Most importantly, however, is that the cell membrane is spanned by a phospholipid bilayer and, according to the information given about the effect of detergent on lipids, the cell membrane would be destroyed since it is made up primarily of lipids.
When phospholipid molecules are placed in water they form bilayer membranes Describe what you think happens to cause the formation of the bilayer membranes?
The hydrophobic and hydrophilic effect. The nonpolar tails join together in the middle of the bilayer away from water and the polar heads that can tolerate water are on the outside of the bilayer.
Explain what effect more cholesterol in the plasma membrane will have on the membrane?
the cholesterol will help to prevent the fatty-acid tails of the phospholipids bilayer from sticking together, which contributes to the fluidity of the plasma membrane.
Effect of double bond in fatty acids to its melting point?
double bonds mean the fatty acid is unsaturated and kinky which makes its packing difficult in the phospholipid bilayer and hence this drop the melting point
How does alcohol effect the cell membrane of onions?
The cell membrane is made up of a phospolipid bilayer, and these phospholipids are soluble in ethanol. Therefore, the membrane will be broken down (?). This increases the permeability of the cell membrane.
How does the structure of phospholipids linear molecules with a polar end and a nonpolar end relate to their function in the cell membrane?
Which is the effect of having the polar and nonpolar ends of phospholipid molecules oriented as they are in this illustration?
What makes it possible for the plasma membrane to self assemble?
The plasma membrane is able to self-assemble due to the properties of its constituent molecules, such as phospholipids. Phospholipids have hydrophilic heads and hydrophobic tails, which drives them to form a bilayer structure when exposed to water. This spontaneous assembly is driven by the hydrophobic effect and results in the formation of a stable and selectively permeable membrane.
What effect does a detergent have on the integrity of cells if a lipid is added to the detergent?
A detergent would bring about the deterioration of cell integrity. This is because the cell's membrane consists of lipids and proteins. Most importantly, however, is that the cell membrane is spanned by a phospholipid bilayer and, according to the information given about the effect of detergent on lipids, the cell membrane would be destroyed since it is made up primarily of lipids.
Effect of methanol on beet membrane?
Methanol breaks down the structure of the beet membrane which in turn release the pigment, betcyanin, the pigment found in beet cell vacuoles that give beets their characteristic colour, and releases it. The more intense the colour you see, the greater damage that had been done on the membrane.
What is the effect of heat on beetroot?
The effect of heat on beetroot is that the membrane becomes impacted. It causes the membrane to be more permeable.
What is the effect of glycerol on a cell membrane?
It interact with membrane to increase stiffness
What effect will more cholesterol in the plasma membrane have on the membrane?
It will cause it to become rigid
What effect does organic solutes have on the permeability of beetroot cell membrane?
The rate of osmosis is dependent on the gradient between the solute concentrations, the permeability of the membrane and of course, the temperature of the solution. Temperature affects the rate because the warmer the temperature the faster the diffusion will take place.
