glucose molecules will diffuse out of the cell. apex
glucose molecules will diffuse out of the cell. apex
They will defuse outside of the cell
glucose molecules will diffuse out of the cell. apex
Glucose molecules will diffuse out the cell -Apex
Glucose molecules will diffuse into the cell.
A large glucose molecule requires facilitated diffusion but an oxygen molecule does not is a semipermeable membrane.
The answer is that glucose crosses a semi-permiable membrane by the process of facilitated diffusion. It cannot be by osmosis, because osmosis is the moving of only water from a concentration of high to low.
the process through which the molecule move from a higher concentrated to low concentrated is called as Osmosis. the same molecule when move from a high concentration to lower one is called as Reverse Osmosis.
facilitated diffusion
Glucose moves across the cell membrane through facilitated diffusion. This type of transport uses protein carriers to assist glucose molecules across the cell membrane from an area of high concentration to an area of low concentration.
A large glucose molecule requires facilitated diffusion but an oxygen molecule does not is a semipermeable membrane.
A semipermeable membrane is a large glucose molecule that requires facilitated diffusion but an oxygen molecule does not.
The answer is that glucose crosses a semi-permiable membrane by the process of facilitated diffusion. It cannot be by osmosis, because osmosis is the moving of only water from a concentration of high to low.
the process through which the molecule move from a higher concentrated to low concentrated is called as Osmosis. the same molecule when move from a high concentration to lower one is called as Reverse Osmosis.
facilitated diffusion
Glucose moves across the cell membrane through facilitated diffusion. This type of transport uses protein carriers to assist glucose molecules across the cell membrane from an area of high concentration to an area of low concentration.
Glucose (sugar) enters the cell through facilitated diffusion, which is the movement of particles from an area of high concentration to an area with low concentration through a protein channel. This happens passively (on its own, with no extra energy required).It does not matter what other particles are in the cell--- the GLUCOSE will enter it so long as there is a higher concentration of GLUCOSE outside the cell than inside.The protein channel is needed because glucose molecules are too large to pass through the cell membrane by simple diffusion.
the lipid bilayer forms a barrier to water soluble substances such as glucose
Facilitated Diffusion
zytosis denititile
Diffusion, facilitated diffusion, Osmosis and Active Transport. Diffusion moves non-polar molecules across the cell membrane down a concentration gradient. Osmosis moves water across the cell membrane through a channel formed by aquaporins called a protein channel, down the water potential gradient. Active moves the non-polar molecules against the concentration gradient, in contrast to diffusion. Lastly, facilitated diffusion moves polar molecules across the cell membrane through creating protein channels in the cell membrane from specific proteins. ETC, glucose transporters bind to form a protein channel for glucose to diffuse through, after which the proteins disperse. That should be all, hope it was of help!
Simple Diffusion - Lipid soluble molecules diffuse across the plasma membrane of a cell, uses no ATP energy and only occurs down a concentration gradient.Facilitated Diffusion - Molecules use the aid of proteins scattered throughout the plasma membrane to help them diffuse into or out of a cell, uses no ATP energy and only occurs down a concentration gradient.Co-transport - A molecule such as glucose may have a lower concentration inside a cell than outside so it attaches to a carrier protein, as does a molecule that is higher in concentration inside than outside, a sodium ion for example. The glucose is pulled through the membrane because of its concentration gradient, as this happens the sodium ion is also pulled through. This uses no ATP energy but only occurs if a molecule can move down a concentration gradient (on an exam paper you would have to explain that the sodium moves against a concentration gradient to get full marks).Active transport - A molecule uses the aid of carrier proteins to diffuse against a concentration gradient, this does use ATP energy. The ATP is needed to make the carrier protein change shape. This only occurs against a concentration gradient.