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Glucose is a polar molecule that cannot readily pass through nonpolar lipid bilayers of cell membranes. It requires specific transport proteins such as glucose transporters to facilitate its passage into and out of cells through facilitated diffusion or active transport. This selective transport process helps maintain glucose homeostasis within cells and the body.
What else can I help you with?
What is the name given to membranes that only allow certain materials to pass through them?
"semipermeable"
Why do colloids cannot pass through membranes but do with filter paper?
Colloids cannot pass through membranes because their particles are too large to fit through the membrane pores. However, they can pass through filter paper because filter paper has larger pores that allow colloidal particles to pass through while trapping larger particles.
Why could glucose could pass through the visking tubing?
Because it has starch in it.
In fact polar molecules are unable to go across unless?
In fact, polar molecules can pass through cell membranes with the help of specific transport proteins that facilitate their movement. These transport proteins act as channels or carriers to allow polar molecules to cross the hydrophobic membrane. Therefore, polar molecules can indeed pass through cell membranes under certain conditions.
Which solute did not appear in the filtrate using any of the membranes?
The solute that did not appear in the filtrate using any of the membranes is albumin. Albumin is a large protein molecule that is too big to pass through the pores of the filtration membranes in the kidney.
Is glucose permeable or impermeable?
Glucose is permeable, meaning it can pass through cell membranes.
Can glucose pass through a membrane?
Dialysis membranes are typically not permeable to sucrose. Removing sugar from the blood can be dangerous as it can lead to hypoglycemia. Sugar molecules are too large to pass through dialysis membranes.
How does a cell solve the problem of glucose being to big to pass through the cell membrane?
Cells use transport proteins, such as glucose transporters, to facilitate the movement of glucose molecules across the cell membrane. These transporters act as channels or carriers that allow glucose to pass through the membrane, overcoming the barrier posed by its size.
What are membranes that allow only certain substances to pass through them?
Semi permeable membranes.
Can glucose pass through visking tube?
fine glucose molecules can pass through the wall of the visking tube.
What allows water to pass through?
water can pass through cell membranes by osmosis- similar to diffusion
What statement explains why oxygen molecules easily diffuse across a cell membrane which glucose molecules do not?
Glucose is too big to pass throught.
Why is glucose allowed to pass through a semipermeable membrane and not starch?
Whether molecules are able to pass through the membrane depends on the size of the molecules. Smaller ones can, and larger ones cannot. Glucose can pass through a cell membrane because it is a monomer, which is a smaller molecule than the polymer molecules of starch.
How can polar molecules pass through cell membranes?
Through facilitated diffusion
What substances do aquaporins allow to pass through?
Aquaporins allow water molecules to pass through cell membranes.
Why Proteins do not pass through cell membranes?
Hydrophilic proteins.
Does glucose pass through stomata?
No, gases do.
