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Selective (or differential) permeability allows the cell to regulate its internal environment and maintain internal homeostasis. This is also the basis by which a neuron (nerve cell) can 'fire' and send a message along its axon - it selectively allows one electrolyte then a different electrolyte to flow across its cell membrane and change the electrochemical gradient.
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Why would cell membrane be destroyed if if it were permeable instead of selectively permeable?
Unwanted substances could get in, potentially destroying the cell and 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.
What membrane that allows only some materials to move in and out of the cell is?
Such a membrane is said to be selectively permeable or semi-permeable.
What part of the cell is describe as semi permeable?
The Cell Membrane also known as the plasma membrane
What type of barrier is produced by the phospholipids in the cell membrane?
A semi-permeable membrane, permeable to gases and small, non-charged particles.
What is a membrane that allows some substances to pass through but excludes others?
A membrane that lets some substances pass through but not others is known as a semipermeable membrane. Other terms that describe this type of membrane are: selectively permeable, partially permeable, or differentially permeable.
What is meant by the term differentially permeable?
differentialy permeable means, a substance which allow only certain materials to pass through it. For eg., a plant cell wall acts as a differentially permeable membrane which allow only certain materials like water, certain ions etc to pass through it.
What term is used to describe how the cell selects what materials enter and leave the cell?
The term is "cellular transport," which refers to the processes by which cells regulate the movement of materials across their membranes. This includes mechanisms such as passive diffusion, active transport, and facilitated diffusion.
What substance can diffuse through a differentially permeable membrane?
Diffusion across a membrane in biology is referred to as 'osmosis' & osmosis is the process by which solvent molecules move from a region of high conc. to low concentration and this can therefore occur only in one direction at a time for a perticular solution. this is a really smart answer im surprised
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 is the basic strcture of a cell membrane?
Cell membrane is elastic and transparent. It can be impermeable, permeable, semi-permeable or selectively permeable. In humans the plasma membrane is selectively permeable that is it allows entry to certain substance.
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.
Is a cell membrane permeable impermeable or partially permeable?
Plasma membranes are selectively permeable.
Does the membrane of a cell is selectively permeable?
no
What is the sentence that uses the word cell membrane?
The cell membrane is selectively permeable.
What is a sentence that uses the words cell membrane?
The cell membrane is selectively permeable.
