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How membrane is selectively permeable?
means that the cell membrane has some control over what can cross it, so that only certain molecules either enter or leave the cell
How is the membrane permeability?
means that the cell membrane has some control over what can cross it, so that only certain molecules either enter or leave the cell
What feature of a membrane describes weather molecules can cross the membrane?
The feature of a membrane that determines whether molecules can cross is its selective permeability. This characteristic arises from the lipid bilayer structure, which allows certain small, nonpolar molecules to pass through freely while restricting larger, polar, or charged molecules. Additionally, specific transport proteins facilitate the movement of these restricted molecules across the membrane, either passively or actively. Thus, the composition and arrangement of the membrane's components play a crucial role in regulating molecular transport.
What can you conclude the permeability of the egg membrane?
The permeability of the egg membrane can be inferred based on the substances that can pass through it. For instance, if certain molecules or ions are able to cross the membrane easily, the permeability is high. Conversely, if only specific molecules can pass through, the permeability is more restricted.
What molecules can freely cross the plasma membrane?
Proteins, Carbohydrates, and Cholesterol. (Check out, 'fluid mosaic')
Which substances are able to cross the membrane, and what determines their ability to do so?
Certain substances, such as small molecules and ions, are able to cross the cell membrane. The ability of a substance to cross the membrane is determined by its size, charge, and solubility in the lipid bilayer of the membrane.
Can small hydrophobic molecules cross the cell membrane?
Yes, small hydrophobic molecules can cross the cell membrane.
Can nonpolar molecules cross the cell membrane?
Yes, nonpolar molecules can cross the cell membrane through simple diffusion.
What is a membrane called when only certain things can cross a membrane?
A membrane that only allows certain substances to cross is called a selectively permeable or semi-permeable membrane. It allows some molecules or ions to pass through while blocking others based on characteristics like size, charge, or solubility.
How membrane is selectively permeable?
means that the cell membrane has some control over what can cross it, so that only certain molecules either enter or leave the cell
Can polar molecules cross the cell membrane?
Yes, polar molecules can cross the cell membrane through facilitated diffusion or active transport.
What is a thin sheet of materials that selectively aloows certain molecules to cross but prevents others from crossing?
Semi-permeable membrane
Which molecule of a membrane describes whether molecules can cross the membrane?
permeability
Which feature of a membrane describes molecules whether can cross the membrane?
permeability
What feature of membrane describes whether molecules can cross the membrane?
permeabiity
What is most likely to occur if the sugar molecules cross the membrane?
Sugar molecules move outside of the membrane.
The side from which more water molecules cross the semipermeable membrane?
The pure solvent side is the side from which more water molecules cross the semipermeable membrane.
