0
Voltage-gated channels are proteins in the cell membrane which open when stimulated by a voltage (an electrical signal). The voltage causes the channel to open, thereby allowing the entry or exit of whatever substance the channel relates to.
An example of this the the voltage-gated sodium channels on neurons. When an action potential (a voltage), passes over the cell, it open these channels and allows sodium to enter the cell.
What else can I help you with?
Transport protein that provides a tubelike opening in the plasma membrane through which particles can diffuse?
Channel Protein.
What are the three types of transport proteins?
Carrier Proteins and Channel ProteinsReceptor ProteinsGlycoproteinsSource: Currently doing AS-Level Biology.
Movement across the cell membrane made possible by a protein embedded in the cell membrane?
It is a selectively permeable membrane that allows certain substances in and out, but keeps harmful substances from entering the cell. It could be compared to the security guard at the door of an airport that makes sure that nobody dangerous gets in or out.
Which thin membrane separates the outer and middle ear in tetrapods?
The ear drum. the medical term is the tympanic membrane
What is the outer layer in animal cells called?
the cell membrane. It is a protein mosaic this is hydrophobic on both sides and hydrophllic in the center.
What do the channel proteins in the cell membrane do?
Channel proteins, a type of transport proteins to the cells, move molecules from outside of the membrane to the inside
What type of channel on the postsynaptic membrane binds neurotransmitter?
a chemically gated channel
What are the cell membrane channel made up of?
turtles
What is the channel in the nuclear membrane through which the RNA passes?
The channel in the nuclear membrane through which RNA passes is called the nuclear pore complex. It allows for the transport of RNA molecules between the nucleus and the cytoplasm.
Channel can help move things across the membrane?
proteins
What channel helps move things across the membrane?
transportation
How do voltage sensitive channel proteins respond to electrical signals?
Voltage-sensitive channel proteins respond to changes in membrane potential by undergoing conformational changes that open or close the channel. When the membrane potential reaches a specific threshold, the channel opens, allowing ions to flow across the membrane. This allows for the generation and propagation of electrical signals in the form of action potentials.
What membrane of a cell acts like a channel?
The cell membrane contains various proteins that act as ion channels, allowing specific ions to pass through. These membrane channels are integral in regulating the transport of ions and maintaining the functionality of the cell.
Is the flexible nature of a cell membrane results from its channel proteins true?
Yes, the flexible nature of a cell membrane results from its phospholipid bilayer, which allows for movement and bending. Channel proteins, on the other hand, facilitate the transport of specific molecules across the membrane but do not contribute significantly to the overall flexibility of the membrane.
Is a protein that forms an ion channel through a membrane is most likely to be a peripheral protein a trans membrane protein a phospholipid an enzyme or an entirely outside the phospholipid?
A protein that forms an ion channel through a membrane is most likely to be a transmembrane protein. Transmembrane proteins span the lipid bilayer, allowing them to create channels for ions to pass through the membrane. Peripheral proteins are typically found on the surface of the membrane and do not form channels.
Is the flexible nature of a cell membrane result from its channel proteins?
Yes it is
How does facilitated diffusion occur through a protein channel?
Facilitated diffusion occurs through a protein channel by allowing specific molecules to pass through the cell membrane with the help of a protein channel. The protein channel acts as a tunnel that facilitates the movement of molecules that are too large or polar to pass through the membrane on their own. The molecules bind to the protein channel, which changes shape to allow them to pass through, ultimately helping them move across the membrane.
