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Selective permeability usually refers to the ability of a membrane to regulate the movement of materials. An intervening membrane can physically prevent a solute from diffusing down its concentration gradient. This allows cells, for example, to maintain a cytoplasm with a different composition than the extra-cellular fluid. A membrane may contain protein channels for the passive diffusion of a specific substance, actively acquire or discharge others, and have no channels to facilitate the movement of another. Thus, the membrane is selectively permeable for different solutes, usually depending on the needs of the cell.
What else can I help you with?
Is a cell membrane permeable impermeable or partially permeable?
Plasma membranes are selectively permeable.
Is a cell wall permeable partially permeable or impermeable?
the cell wall is fully permeable
What is the prefix for permeable?
The prefix for "permeable" is "permea-".
Which blood vessel is permeable?
Only capillaries have permeable walls; veins and arteries are not permeable.
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 does it mean to be semi permeable?
Permeable mean that it is full time. Semi-permeable is when it is only part of the time.
Is sand permeable?
Yes sand is permeable
Why are permeable surfaces permeable?
Due to an interconnection in pore spaces.
Is zinc permeable to water?
Zinc isn't permeable to water.
When was Permeable Press created?
Permeable Press was created in 1990.
Is the membrane permeable to protons?
Yes, the membrane is permeable to protons.
Are capillaries permeable to proteins?
Yes, capillaries are permeable to proteins.
