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A pump protein moves sodium and potassium ions across the membrane by?
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Why is there a resting membrane potential across the cell membrane?
sodium/potassium pump
Do ions need a transport protein to enter bilayer?
Yes! K+ or Na+ or exchanged with its specific potassium and sodium pump protein on the membrane.
What kinda ions are positively charged and can cross back and forth across the neuron cell membrane?
There are two ions that can cross the cell membrane. The positively charged sodium and potassium ions can cross back and forth across the neuron cell membrane.
Why does the membrane have to pump sodium and potassium across the membrane and keeps pumping it?
The membranes of nerve Cells use the Sodium/Potassium pump system to charge It's membranes, for a reversal of this condition constitutes the discharge of this Action Potential - 'keeps pumping it' refers to recharging the membrane's Action Potential.
Why is facilitated diffusion different from diffusion?
A sodium potassium pump is different from diffusion cos, it requires energy (ATP), and therefore is a active transport. Rather then diffusion which is the passive transport of solutions across cell membranes without using energy, and is determined by the concentration gradient.
Why is there a resting membrane potential across the cell membrane?
sodium/potassium pump
What is the role of ATP in sodium potassium pump?
transport across the membrane
What is the role of ATP in sodium-potassium pump?
transport across the membrane
What protein that allows ions to actively transport across?
The transport protein allows substances to travel across the cell membrane. The substance is traveling from low concentration to a higher concentration. The process requires energy and is called active transport. The protein is simply called a transport protein.
What is the change of ion pump to move ion across the cell membrane?
Sodium Potassium pump
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
Do ions need a transport protein to enter bilayer?
Yes! K+ or Na+ or exchanged with its specific potassium and sodium pump protein on the membrane.
What is the process in which certain molecules act as carriers to move materials such as sugar across the cell membrane?
Ions such as sodium, potassium, chloride and calcium. Some molecules that are too big to get through the lipid bilayer by themselves can also be shuttled across the membrane by carrier proteins.
What is a brief description of the action of the sodium-potassium pump?
The sodium-potassium pump is a transmembrane protein in a cell membrane. It keeps large concentrations of sodium ions outside the cell, and potassium ions inside the cell. It does this by pumping the sodium ions out, and the potassium ions in.
What kinda ions are positively charged and can cross back and forth across the neuron cell membrane?
There are two ions that can cross the cell membrane. The positively charged sodium and potassium ions can cross back and forth across the neuron cell membrane.
Why does the membrane have to pump sodium and potassium across the membrane and keeps pumping it?
The membranes of nerve Cells use the Sodium/Potassium pump system to charge It's membranes, for a reversal of this condition constitutes the discharge of this Action Potential - 'keeps pumping it' refers to recharging the membrane's Action Potential.
Why Sodium and potassium ion can only cross in axon membrane through protein channel explain why?
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.
