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Which property of a membrane determines which molecules may enter or leave?
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Does the size or the speed of a molecule determines whether it can pass through the pores of a membrane?
The speed doesn't necessarily determine the permeability, but the size does. Smaller molecules such as O2 can easily enter the cell while CO2 leaves the cell. There are other criteria that also determines whether a molecule can pass through the plasma membrane such as its solubility. Fat soluble molecules such as steroids can easily pass through the membrane.
What selects which molecules enter the cell?
Nuclear decide and allow which molecules will be enter in the cell,- Isrg Rajan
What determines how quickly materials enter and leave a cell?
Glucose concentration
What is the process by which large molecules enter a cell through pouches in the membrane?
Phagocytosis
The plasma cell membrane regulates which molecules can or cannot enter a cell since it is?
permeable (has channels/transporters for specific ions/molecules)
Does the size or the speed of a molecule determines whether it can pass through the pores of a membrane?
The speed doesn't necessarily determine the permeability, but the size does. Smaller molecules such as O2 can easily enter the cell while CO2 leaves the cell. There are other criteria that also determines whether a molecule can pass through the plasma membrane such as its solubility. Fat soluble molecules such as steroids can easily pass through the membrane.
What part of a cell determines what enter a cell?
nucleus and membrane/wall
What selects which molecules enter the cell?
Nuclear decide and allow which molecules will be enter in the cell,- Isrg Rajan
How does the cell membrane regulate what enters and leaves the cell membrane?
Cell membrane have proteins embedded in them that act as channels for things to enter and leave the cell. Furthermore, the fact that the membrane is non-polar will block any polar molecules from entering but will allow non-polar molecules such as hormones to enter.
What determines how quickly materials enter and leave a cell?
Glucose concentration
What is the process by which large molecules enter a cell through pouches in the membrane?
Phagocytosis
Why do you think that the eggs membrane will let water to enter but not corn syrup?
water molecules are smaller than corn syrup. the membrane allows a certain size of molecules.
How does a cell allow small molecules enter and exit?
"The cell membrane has openings in it." (PLATO) (:
What cell organelle has pores that allow certain molecules to leave and enter it?
Cell membrane
What part of the membrane helps large carbohydrate molecules enter the cell?
Globular proteins
What is selectively permeable?
The property of a membrane or other material that allows some substances to pass through it more easily than others.Selective permeability refers to the control that a cell membrane has in terms of what it allows to cross it. This gives the cell membrane the ability to choose which molecules enter or leave.
What characteristic does it called when the cell membrane allows only certain molecules and ions to enter or exit the cell?
A "semi permeable" membrane.
