0
Changes in the transmembrane potential of a cell are involved in?
Wiki User
∙ 11y ago
nerve cell communication,thought, glandular secretion and movement.
Wiki User
∙ 11y ago
Add your answer:
Earn +20 pts
What are the channels in the cell membrane made of?
Most channels are made of specialized transmembrane proteins.
What is the electrical potential across the cell membrane of a nerve cell or muscle cell when the cell is not active?
resting potential
B What are the major events of an action potential and what ion changes are associated with each event?
An action potential is a chain reaction of cell events caused by an ionic gradient. One example is the firing of a nerve reaction.
Channels within the structure of the cell membrane are composed of....?
Simply stated: ProteinsChannels within the structure of the cell membrane are composed of proteins. A protein that forms an ion channel through a membrane is called a transmembrane protein.
What are the membrane structures that function in active transport?
transmembrane proteins like a proton pump that pumps hydrogen atoms to the extraacellular space creating a charge difference between the inside of the cell(negative charge) and the outside of the cell(positive charge) by the use of ATP. This charge difference is what allows cotransport through another transmembrane protein to occur.In a nutshell proteins with the use of ATP
The transmembrane potential of a normal cell under homeostatic conditions?
resting potential
How is the K transmembrane flux when neurone hyperpolarizes?
The potassium ion channels in the cell open with hyperpolarization (injecting a negative current to take the cell potential more negative than Ek) The potassium ion channels in the cell open with hyperpolarization (injecting a negative current to take the cell potential more negative than Ek)
This type of macromolecules is a component of the cell membrane that helps move molecules in and out of the cell?
Transmembrane Proteins
What type of proteins don't go through the bilayer?
It important that some proteins extend all the way through the bilayer of a plasma membrane. This is to offer protection to the cell and also facilitate the transport of various substances in and out of the cell.
A gene having the potential to trigger cancerous changes in a cell?
oncogene
What device changes chemical energy into electric potential energyenergydiagram?
cell
Cellular adhesion molecules are?
Cell adhesion molecules are groups of transmembrane proteins that mediate.
What is the difference between an antibody and a B cell receptor?
Antibodies lack a transmembrane domain.
What are the channels in the cell membrane made of?
Most channels are made of specialized transmembrane proteins.
What is a holes in plasma membrane through which molecules pass across capillary wall?
The plasma membrane is made up of a lipid bilayer and some proteins. The transmembrane proteins are the structures which are involved in the transport of molecules in or through the cell.
When a Cell uses a 'transmembrane protein gate' in order to get large molecules across the Cell membrane this is known as?
Active Transport of Cellular materials.
By which event is an ion transmembrane gradient dissipated?
The 'firing off' of a nerve cell impulse from the dendrite to the axon.
