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Which of the following would likely move through the lipid bilayer of a plasma membrane most rapidly?
Wiki User
∙ 14y ago
Water, or small hydrophobic compounds.
Wiki User
∙ 15y ago
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What moves through the lipid bilayer of a plasma membrane most rapidly K glucose an amino acid CO2 or starch?
co2
Why can molecules that are fat-soluble permeate across a cell membrane?
Cell membranes are composed of a lipid bilayer. Cellular fluid (cytosol) and the cell's organelles are contained by the cell's membrane, which is composed of a lipid bilayer. Lipids are a type of fat. Because a cell's membrane is composed of fat, only fat-soluble molecules are able to dissolve through the membrane into the cytosol.
The part of a membrane protein that extends through the phospholipid bilayer is primarily composed of amino acids that are?
non-polar
Why has the unit membrane theory been rejected?
The rigid protein layers present on both the sides of the lipid bilayer do not allow substances to pass through the plasma membrane.
Osmosis can only occur if water travels through the what?
Osmosis can only occur if water travels through the semi-permeable membrane. This will cause water to cross the lipid bilayer.
What moves through the lipid bilayer of a plasma membrane most rapidly K glucose an amino acid CO2 or starch?
co2
Which molecules are often embedded within the lipid bilayer to help substances through move through the membrane?
proteins.proteins
Which molecules are embedded within the lipid bilayer to help substances move through the membrane?
proteins.proteins
Why can molecules that are fat-soluble permeate across a cell membrane?
Cell membranes are composed of a lipid bilayer. Cellular fluid (cytosol) and the cell's organelles are contained by the cell's membrane, which is composed of a lipid bilayer. Lipids are a type of fat. Because a cell's membrane is composed of fat, only fat-soluble molecules are able to dissolve through the membrane into the cytosol.
Some steroid hormones do not require a membrane receptor because?
they are lipid soluble and pass through the bilayer
Which molecules are often embedded within the lipid. Bilayer to help substances move through the membrane?
proteins.proteins
Which molecules are often embedded within the lipid bilayer to help substances moves through the membrane?
proteins.proteins
What are 3 molecules that pass through the lipid bilayer of the cell membrane?
oxygen, carbon dioxide, and water
Gases such as oxygen and carbon dioxide cross the plasma membrane by?
passive diffusion through the lipid bilayer
What creates selective permebility of plasma membrane?
It is because of the make up of the membrane. Most of the bilayer is hydrophobic; therefore water or water-soluble molecules do not pass through easily. Other do pass through easily. A cell controls what moves through the membrane by means of membrane proteins embedded in the phospholipid bilayer.
The part of a membrane protein that extends through the phospholipid bilayer is primarily composed of amino acids that are?
non-polar
What molecules are apart of the cell membrane?
A cell membrane is made up of lipids (the lipid bilayer) was well as glycoprotiens and glycocalyses. The proteins can be on either or bothe sides of the lipid bilayer, allowing for various types of transport through the "semi-permeable membrane." The proteins on the surface may be used for identification purposes.
