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Why Sodium and potassium ion can only cross in axon membrane through protein channel explain why?
Wiki User
∙ 13y ago
At rest sodium in the outside and potassium on the inside as action potential propagate along the axon, depolirization happens and sodium channel opens and allow sodium ions to flood into the neurone. A wave of deporization spread along the neuron, the neuron membrane contain specialised protein called channels. the channel from pore.
Wiki User
∙ 13y ago
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Can sodium still enter a membrane if ATP is not present to activate the sodium potassium pump?
no as there is no energy to form a conrormational change in the protein pump
What is a gated protein?
Its channel protein with flaps at the ends that act as gates
Where potassium digested?
Potassium is essential for protein synthasis and for the conversion of blood sugar into glycogen. It activates a number of enzymes, particularly those concerned with energy production. Potassium is absorbed from the diet and does not need any specific mechanism and takes place in the small intestine as long as the concentration in the gut is higher that in the blood. Some potassium can be excreted in sweat. The kidneys are the main regulators Potassium is not digested at all, because it is an element and therefore can not be decomposed into simpler substances by digestion or any other chemical process.
Which food group is rich in calcium vitamin d potassium and protein?
milk,banana,seafoods just eat fruits and also vegetables to keep u healthy and also proper exercise :)
Which protein complex allows hydrogen ions to rush out of the thylacoid providing energy that can be used to make a molecule?
ATP synthase allows H+ ions to pass through the thylakoid membrane.
What channel can help move things across the membrane?
Protein channels help move particles across the cell 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.
What is aqua-protein?
an aqua protein is a channel protein which allows water to pass through a membrane during osmosis
What happens if a molecule is too large to go through a membrane?
The molecule will be transported across the membrane by way of a transport protein or protein channel.
What type of transport protein is a sodium potassium pump?
It is a carrier protein
How does nutrients cross plasma membrane?
Things like oxygen, CO2 and lipids cross the membrane with simple diffusion. Water can cross the membrane with osmosis when the water moves through a channel protein in the plasma membrane. Glucose, potassium, sodium etc. moves through a carrier protein in the membrane with the process of active movement. In the process of active movement energy is needed and it is given by the glucose or ATP from the cell.
A pore in a cell membrane through witch ions can pass?
Not necessarily. Normally, ions are not small enough to pass through, so they are usually assisted by integrated proteins. However, certain ions such as potassium may sometimes "leak" into or out of the cell membrane due to concentration gradient.
What are the special structures in the cell membrane that allow materials such as water and sugar through made of?
PROTEIN!!!!!!!!!!!!!!!!!!!!!!!!!
A specific protein that recognizes certain molecules bringing them across the membrane?
Receptor Protein.
What is a large protein in the cell membrane that transports a specific ion?
Ion channel
Transport protein that provides a tubelike opening in the plasma membrane through which particles can diffuse?
Channel Protein.
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.
