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What structure is required for osmosis?
A partially permeable membrane is required for osmosis to occur. This membrane allows the passage of solvent molecules (usually water) while preventing the passage of solute molecules.
If a membrane was not permeable to sugars why would it probably also not be permeable to starch molecules?
If a membrane is permeable to a substance, it means that there are gaps/holes/pores in the membrane large enough for that substance to pass through. Starch molecules are bigger that sugar molecules. So if the membrane is not permeable to sugars, the gaps/holes/pores will not be big enough for starch molecules to pass through either.
What is a selectlively permeable membrane?
The cell membrane is selectively permeable, allowing some molecules to pass through by osmosis
What type of molecules can easily go through your cell membrane or are permeable to the cell membrane?
Substances with a hydrophillic-lipophillic balance are permeable through the cell membrane.
What structure allows only certain things to pass in and out of a cell?
The cell membrane. It is a semi-permeable membrane (or selectively permeable membrane) - this means that it only lets certain certain molecules or ions pass in or out of the cell. Permeability may depend on the molecule's size, solubility, properties, or chemistry.
What is meant by membrane is membrane?
a partially permeable membrane allows some molecules or ions to pass through it
How do some molecules get into cells?
Some molecules get into cells by going through their permeable membrane.
What is meant by partially permeable?
a partially permeable membrane allows some molecules or ions to pass through it
Which part in the cell is fully permeable and selectively permeable?
The cell membrane is selectively permeable, allowing only certain molecules to pass through based on size, charge, and other factors. Conversely, the nuclear envelope is fully permeable to molecules of certain sizes.
Is cell wall is a permeable membrane?
No, the cell wall is not a permeable membrane. It acts as a rigid structure that provides support and protection to the cell, allowing certain substances to pass through pores, but it is not freely permeable like a membrane.
What do you call a cell membrane that allows certain molecules to pass through?
A selectively permeable membrane.
What do cell membrane do that cell walls can't do?
Cell membrane is selectively permeable membrane, therefore it allows selective molecules to be taken in by the cell and excludes others. Whereas cell wall is permeable in nature and does not inhibit the intake of many molecules what the cell membrane does.
