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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.

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15y ago

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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.


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.


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 you sodium potassium and chloride ions pass to the cell membrane?

Sodium, potassium, and chloride ions pass through the cell membrane via ion channels. These channels are proteins that create a passageway for the ions to move down their concentration gradients. Different ion channels have specific selectivity for certain ions, allowing them to pass through 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.


Can ions diffuse through a membrane?

Yes, ions can diffuse through a membrane.


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.


What in the cell membrane controls movement of ions into and out of the cell?

Proteins imbedded in the cell membrane


What is FALSE regarding the membrane potential?

Both potassium and sodium ions can "leak" through the cell membrane due to diffusion.


What is an antiporter?

An antiporter is a cell protein which acts within an antiport to transport different molecules or ions across the membrane in opposite directions.


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.