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What molecules diffuses through the lipid portion of the plasma membrane?
Wiki User
∙ 11y ago
Any hydrophobic ones. eg. steroids
Wiki User
∙ 11y ago
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Which molecules difuse through the lipid portion of the plasma membrane?
Only nonpolar (hydrophobic) molecules can pass through the bi-lipid membrane. For example, hormones are nonpolar, and they can pass through the membrane.
Where does CO2 enter the chloroplast?
It diffuses through the membrane.
How does oxygen get in and out of plasma membrane?
Oxygen, O2, is a small enough molecule that it diffuses diwn it's concentration gradient into the cell and rather easily foes through the plasma membrane. Many small molecules can do this.
Methane gas diffuses through air because the molecules are?
moving randomly
Why do passenger molecules need to be helped by the carrier protein?
Some molecules can't go through the cell membrane.
Which molecules difuse through the lipid portion of the plasma membrane?
Only nonpolar (hydrophobic) molecules can pass through the bi-lipid membrane. For example, hormones are nonpolar, and they can pass through the membrane.
Oxygen diffuses through what structure?
A semipermeable membrane.
Where does CO2 enter the chloroplast?
It diffuses through the membrane.
What molecules that are soluble can pass through the fatty acid portion of the cell membrane unassisted?
Cholestrol
How does oxygen get in and out of plasma membrane?
Oxygen, O2, is a small enough molecule that it diffuses diwn it's concentration gradient into the cell and rather easily foes through the plasma membrane. Many small molecules can do this.
The diffusion of water across a semipermeable membrane is called?
When water diffuses through a semipermeable membrane, such as a cell, it is called osmosis. In osmosis the concentration of water will differ on one side of the membrane from that of the other side. Water molecules will tend to diffuse from the high concentration side to the lower.
Water molecules diffuse through a selectively permeable membrane?
Water diffuses by facilitated diffusion, passing through water permeable protein channels embedded in the cell membrane. Water molecules can not pass through the lipid bilayer because water is polar. However, polar molecules pass though the cell membrane through the protein channels. The proteins that aid water in passing through the cell membrane are called aquaporins. "Aqua" for water, and "porin" for pore. A "water pore" in essence.
How do small molecules get through the cell membrane against a concentration?
How do small molecules get through a cell membrane
Methane gas diffuses through air because the molecules are?
moving randomly
Why do passenger molecules need to be helped by the carrier protein?
Some molecules can't go through the cell membrane.
What is one way osmosis and diffusion are similar?
The similarity is that they both involve the movement of molecules between a membrane. In osmosis, water diffuses through a semi-permeable membrane without energy due to a difference in solute concentration between sides. In active transport, energy is used by the organism to "push" molecules through ports in the membrane, regardless of solute concentration.
How is facilitated diffusion differing from diffusion?
Simple diffusion allows non-polar molecules to pass through and a little amount of H20. On the other hand, Facilitated diffusion allows ions and polar molecules across the membrane because it contains carrier proteins. It is highly specific to substances it diffuses across the membrane.
