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What is one reason that a cell needs to regulate flow across the membrane?
Wiki User
∙ 13y ago
Because the cell requires certain substances such as oxygen and glucose, but do not need substances such as viruses or excess fat. The cell is able to control this, thereby keeping the cell as healthy as possible.
Wiki User
∙ 14y ago
Wiki User
∙ 13y agoDestruction by dehydration or bloating to the point of bursting, that is the question.
Wiki User
∙ 10y agoit is important for cells regulate what enters and exits the cell, because failure to do so may lead to some toxic materials to get into the body that may harmful to the body.
Wiki User
∙ 7y agoThe main reason is that osmosis would flood the cell with water, diluting it and eventually bursting the cell membrane killing the cell, without active transport.
Wiki User
∙ 13y agoThe cell needs to maintain homeostasis.
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Why is it important for the cell membrane to allow materials to enter and leave the cell?
Cell membranes regulate several materials that enter the cell. Cell membranes regulate proteins, as well as other materials that enter or leave the cell.
What is the function of the vacuole membrane?
The vacuole membrane is mainly used to keep the shape and allow the passage of items the cell wants needs
How does the structure of a cell membrane help the cell regulate water?
by a process called osmosis. Osmosis depends on the concetration of the water inside and outside the cell.
Do you think that a plant cell which already has a stiff strong cell wall still really needs a cell membrane Why or why not?
A plant cell needs a cell membrane because it contains the presences of proteins which are crucial to cell activity.
Why would a cell need a cell membrane?
That's like asking why do we need skin or why do milk need cups or why bear needs skin. The cell membrane protects what is inside the cell and keeps it stable. Also, the cell membranes are selectively permeable and only not allows everything to let in the cell, but going back to the first reason, if cells did not have membranes, we would look like a slime.
Do a plant cell really needs a cell membrane?
yes plant cells needs a cell membrane
What are the functions of cell membrane in all cells?
the cell membrane is like the skin of a cell. it keeps everything in that needs to be in and everything out that needs to be out.
What is the role of transport proteins within the plasma membrane?
The membranes around cells and even around some organelles do not allow much to go in and out. If the substance is too large, it can't move in without help. If the charge is 'incorrect', it needs help as well.
Why is it important for the cell membrane to allow materials to enter and leave the cell?
Cell membranes regulate several materials that enter the cell. Cell membranes regulate proteins, as well as other materials that enter or leave the cell.
What is called when a molecule moves across a semipermable membrane into a region of a higher concentration?
When a molecule moves to a higher concentration it needs help of a pump. We call this facilitated diffusion. Osmosis only deals with the movement of water.
What is selecticely permeable?
Selective permeability usually refers to the ability of a membrane to regulate the movement of materials. An intervening membrane can physically prevent a solute from diffusing down its concentration gradient. This allows cells, for example, to maintain a cytoplasm with a different composition than the extra-cellular fluid. A membrane may contain protein channels for the passive diffusion of a specific substance, actively acquire or discharge others, and have no channels to facilitate the movement of another. Thus, the membrane is selectively permeable for different solutes, usually depending on the needs of the cell.
What does cell membrane mean and the function?
A cell membrane is like gate keeper because it needs to know that what substances enter or leave.
What is the function of the vacuole membrane?
The vacuole membrane is mainly used to keep the shape and allow the passage of items the cell wants needs
Why does blood go to the kidneys?
It filters the blood, so it needs a large mass to regulate at once.
How does the structure of a cell membrane help the cell regulate water?
by a process called osmosis. Osmosis depends on the concetration of the water inside and outside the cell.
How is the function of epithelium reflected in its structure?
Since epithelium needs to serve as both a barrier and selectively permeable membrane, the cells need to be tightly junctioned to one another (thus prohibiting paracellular transport) and need to express channels, transporters or exchangers to allow for movement of selected ions/molecules across the epithelial barrier
Do you think that a plant cell which already has a stiff strong cell wall still really needs a cell membrane Why or why not?
A plant cell needs a cell membrane because it contains the presences of proteins which are crucial to cell activity.
