0
Still curious? Ask our experts.
Chat with our AI personalities
Rene
Devin
Steve
Add your answer:
Earn +20 pts
Do chemicals pass in and out of a cell through openings of the nucleus?
No they pass through the cell membrane. The cell membrane is selectively permeable to ions and organic molecules
An action potential is caused by an influx of these ions into the cell?
An action potential is caused by an influx of sodium ions into the cell through voltage-gated sodium channels. This influx of sodium ions results in depolarization of the cell membrane, leading to the generation of an action potential.
What is the method of transport for the movement of sodium ions into the cell and the potassium ions between the red blood cell and the plasma?
Sodium ions are primarily transported into the cell through the sodium-potassium pump, an active transport mechanism that utilizes ATP to move ions against their concentration gradient. Potassium ions move between red blood cells and plasma mainly through passive diffusion, where they move down their concentration gradient through specific channels in the cell membrane.
How is charge transported through an electrochemical cell?
Charge is transported through an electrochemical cell by the movement of ions between the electrodes through the electrolyte solution. In a typical cell, ions are oxidized at the anode, releasing electrons which flow through the external circuit to the cathode where reduction occurs. The movement of electrons through the circuit generates an electric current.
Which structure of a root hair cell controls the uptake of nitrate ions into the cell?
The cell membrane of a root hair cell controls the uptake of nitrate ions into the cell. Specifically, the transport proteins embedded in the cell membrane facilitate the movement of nitrate ions into the cell through processes like active transport or facilitated diffusion.
Could the ions go to another side of the cell through the salt bridge?
The charge of the ions go to another side of the cell through a salt bridge, not the ions themselves.
Why can't ions typically travel through the cell membrane?
Ions typically cannot travel through the cell membrane because the membrane is selectively permeable, meaning it only allows certain substances to pass through. The structure of the cell membrane does not easily allow ions to pass through, so they require specific channels or transport proteins to facilitate their movement into or out of the cell.
What ions are pumped in and out of cell through the sodium potassium pump?
3 sodium ions go out and 2 potassium ions go in
Why can't ions pass through the cell membrane?
Ions cannot pass through the cell membrane because the membrane is selectively permeable, meaning it only allows certain substances to pass through. Ions have an electric charge that makes it difficult for them to pass through the hydrophobic interior of the membrane.
How does the process of ion exchange in the cell membrane involve the movement of 2 potassium ions in and 3 sodium ions out?
Ion exchange in the cell membrane involves the movement of 2 potassium ions into the cell and 3 sodium ions out of the cell through specific protein channels. This process helps maintain the cell's internal balance of ions, which is crucial for proper cell function.
Do chemicals pass in and out of a cell through openings of the nucleus?
No they pass through the cell membrane. The cell membrane is selectively permeable to ions and organic molecules
What transport protein allows ions to pass through the cell membrane?
Ion channels are transport proteins that facilitate the passage of ions across the cell membrane by creating a pore for ions to move through. These channels are selective in the ions they allow to pass and can be gated, meaning they can open and close in response to certain signals.
How do sodium and potassium travel into and out of cells?
Sodium and potassium travel into and out of cells through specialized proteins called ion channels. These channels allow the ions to move across the cell membrane, maintaining the balance of these ions inside and outside the cell. Sodium ions typically enter the cell through sodium channels, while potassium ions exit the cell through potassium channels. This movement of ions is crucial for various cellular functions, including nerve signaling and muscle contraction.
An action potential is caused by an influx of these ions into the cell?
An action potential is caused by an influx of sodium ions into the cell through voltage-gated sodium channels. This influx of sodium ions results in depolarization of the cell membrane, leading to the generation of an action potential.
What is the physical mechanism leading to the electrical impulse action potential in an axon?
It is called depolarization and happens when sodium and/or calcium ions enter the cell rapidly through their respective voltage-dependent ion channels or potassium ions stop leaving the cell through their ion channels or chloride ions stop entering the cell through their ion channels.
What is the method of transport for the movement of sodium ions into the cell and the potassium ions between the red blood cell and the plasma?
Sodium ions are primarily transported into the cell through the sodium-potassium pump, an active transport mechanism that utilizes ATP to move ions against their concentration gradient. Potassium ions move between red blood cells and plasma mainly through passive diffusion, where they move down their concentration gradient through specific channels in the cell membrane.
What are three materials that move through a cell membrane?
Sodium, potassium and calcium are the three things that move through the plasma membrane. There are many other molecules and ions that do move through cell membrane. Plasma membrane have a selective permeable property.
