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protein is the answer can it just common scence and syff like that i looked is up so yeah sorry if i come off mean just boyfriend problem ill tell you about bad boys these days

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What term refers to diffusion of water molecules through a selectively preamble membrane?

Osmosis is the diffusion of water molecules through a semi-permeable membrane to equalise osmotic pressure.


The rate of diffusion through a semipermeable membrane will be lowest when?

The rate of diffusion through a semipermeable membrane will be lowest when temperatures are low. Lower temperatures decrease the energy of the molecules, which in turn decreases the rate of diffusion.


What is a protein moves molecules across a membrane?

Facilitated diffusion moves molecules through cell membranes passively.


Can nonpolar molecules cross the cell membrane?

Yes, nonpolar molecules can cross the cell membrane through simple diffusion.


How are diffusion and facilitated diffusion diffrent?

Diffusion directly passes through the cell membrane unaffected by the hydrophobic part of the membrane. Facilitated diffusion uses proteins to assist in the movement of molecules. Ions have trouble moving through the hydrophobic part of the membrane.


What is the difference between facilitated diffusion and simple diffusion in terms of the mechanisms by which molecules move across a cell membrane?

Facilitated diffusion involves the movement of molecules across a cell membrane with the help of specific proteins, while simple diffusion does not require any proteins and relies on the molecules moving freely through the membrane.


What types of molecules can easily go through your cell membrane are permeable to the cell membrane?

Substances with a hydrophillic-lipophillic balance are permeable through the cell membrane.


When molecules such as oxygen are moved into Cells along their concentration gradient directly through the Cell membrane - this is called?

Trans-membrane diffusion.


Can polar molecules cross the cell membrane?

Yes, polar molecules can cross the cell membrane through facilitated diffusion or active transport.


How does diffusion occur through a semipermeable membrane?

Diffusion through a semipermeable membrane occurs when molecules move from an area of high concentration to an area of low concentration, passing through the membrane. This process is driven by the natural tendency of molecules to spread out and reach equilibrium. The semipermeable membrane allows only certain molecules to pass through based on their size and charge, regulating the movement of substances across the membrane.


Does osmosis or facilitated diffusion require the presence of membrane channels?

Facilitated diffusion requires the presence of membrane channels or transporters to move molecules across the membrane. Osmosis, on the other hand, does not require membrane channels as it involves the passive movement of water molecules through the lipid bilayer of the membrane.


What term describes the diffusion of the water through a semipermeable membrane down a concentration gradient?

Osmosis is the diffusion of water molecules down a concentration gradient through a semi-permeable membrane