0
What moves small or lipid soluble solutes through the membrane?
Wiki User
∙ 12y ago
The unassisted diffusion of solutes through the plasma membrane is called simple diffusion. Solutes transported this way are either lipi-soluble (fats, fat-soluble vitamins, oxygen, carbon dioxide) or small enough to pass through the membrane pores (some small ions such as chloride ions, for example).
Wiki User
∙ 14y ago
Wiki User
∙ 8y agoThe process by which water moves across a cell membrane is osmosis.
Osmosis. Passive transport.
Wiki User
∙ 13y agoDue to the chemical composition of the lipids and the cell membrane.
Wiki User
∙ 11y agoVia simple diffusion, through phospholipid bilayer.
Wiki User
∙ 14y agoThe process is called mitosis.
Wiki User
∙ 12y agoSimple Diffusion
Wiki User
∙ 13y agoDiffusion
Wiki User
∙ 13y agoosmosis!!
Add your answer:
Earn +20 pts
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.
How do steroids move across the cell membrane?
steroids are lipid in nature n also the plasma membrane is made up of lipids then as a rule of like dissolve like it can seep pass through the membrane
What particles can diffuse directly through the lipid bi-layer?
As the bilayer contains hydrophobic fatty acid tails, water-soluble molecules cannot diffuse directly through. However, lipid soluble molecules such as oxygen can diffuse directly through. Overall, for a molecule to be able to diffuse directly through it must be lipid-soluble, relatively small and non-polar.
What allows all molecules to pass through cell membrane?
Transport proteins allow charged molecules to pass through the cell membrane. The process of facilitated diffusion, a type of passive transport, allows transport proteins to take charges molecules into the cell.
What are the two general modes of hormone action?
Lipid-soluble hormones are able to penetrate through the cell membrane and bind to receptors located inside the cell. Such hormones diffuse across the plasma membrane and target those receptor cells found within the cytoplasm. Lipid-soluble hormones target the cytoplasmic receptors which readily diffuse into the nucleus and act on the DNA, inhibiting and stimulating certain proteins. lipid-insoluble are unable to penetrate through the plasma membrane and function with their target cells in a much different and complex manner. Lipid-insoluble hormones must bind with cell-surface receptors which follow a different path involving a second messenger. The hormone's inability to penetrate the membrane requires a second messenger which translates the outer message and functions within the cell.
Moves small or lipid-soluble solutes through the membrane?
simple diffusion
Can the lipid pass through the cell membrane?
yes. Lipid soluble substances are highly permeable
The classes of membrane proteins that permit water and solutes to bypass the lipid portion of the cell membrane are?
There are three classes of membrane transport proteins that permit water and solutes to bypass the lipid portion of the cell membrane. They are uniporters, symporters, and antiporters.
How does lipid soluble move across the plasma membrane?
by dissolving in the lipid bilayer.
Some steroid hormones do not require a membrane receptor because?
they are lipid soluble and pass through the bilayer
Lipid-soluble materials enter and exit the cell via?
Phospholipids permit lipid-soluble materials to easily enter or leave the cell by diffusion through the cell membrane. Phospholipids form a bilayer or double layer which makes up most of the membrane.
Why do drugs need to be soluble in oil?
Drugs need to pass into the lipid-cell membrane of cell. to do this they need to be lipid soluble. olis are lipids.
What substance is most likely to passively diffuse across the plasma membrane by dissolving in the membrane?
Lipid-soluble molecules such as O2 and CO2 diffuse freely through the plasma membrane.
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.
How does lipid solubility affect the ability of substances entering a cell?
If the substance is not lipid soluble, it will not be able to pass through the cell membrane, which is a phospholipid bilayer. This means it will not be able to enter the cell.
Why can only molecules that are fat soluable permate a cell membrane?
The cell wall itself is made of lipid. To be more precise, the cell membrane is made of a bilayer of phospholipids. The hydrophobic fatty acid tails prevent water-soluble molecules passing through, but allow the transport of lipid-soluble molecules.
How do steroids move across the cell membrane?
steroids are lipid in nature n also the plasma membrane is made up of lipids then as a rule of like dissolve like it can seep pass through the membrane
