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Identify at least five ways by which a substance may enter the cell?
Wiki User
∙ 9y ago
Osmosis, diffusion, facilitated diffusion, active transport, passive transport.
Wiki User
∙ 12y ago
Wiki User
∙ 11y agothe cell wall and membrane will approve if it is allowed to leave or enter.
Wiki User
∙ 9y agoMaterials may be transported across the cell membrane by various methods. These include diffusion, osmosis, facilitated diffusion, endocytosis, and exocytosis.
Wiki User
∙ 14y agoitems enter and exit the cell through the cell membrane. This helps the get rid of unwanted materials like bacteria.
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Identify the terms endocytosis and exocytose and distinguish between them?
endocytosis is the movement of a substance into a cell by a vesicle. while the movement of a substance by a vesicle tot eh outside of a cell is called exocytosis
What does faciliated diffusion mean?
It means that in order to cross a barrier, for example a cell membrane, a substance must have a facilitator substance to make it permeable to the barrier. For instance, glucose cannot enter cells unless insulin is present to facilitate the diffusion of glucose from blood to cell. Without the insulin, or with damaged insulin receptors on the cell membrane, the cell membrane remains impermeable to glucose and it cannot enter the cells, so it remains in the blood plasma. This is what causes diabetes.
When is a substance most likely to diffuse into a cell?
If there is the concentration of substance inside the cell is lesser than outside and cell membrane is permeable to the substance.
What substance on the plasma membrane helps identify chemical signals from outside the cell?
carbohydrates
What component of the cell membrane is responsible for cell recognition and identity?
the cell surface markers are what identify the cell type
What do cell membranes allow?
== == Some Substance but not others to enter and leave a cell == == Some Substance but not others to enter and leave a cell
When a substance wants to enter the cell it binds to what?
When a substance wants to enter a cell it goes through the cell membrane in a process called endocytosis.
Cell membranes usually allow what substances to enter a cell?
the cell membrane allows what substance to enter the cells.
How substance are able to enter and exit a cell?
osmosis
Which substance can enter a cell by diffusion without have to be digested?
water
What is the characteristic of a cell membrane that control which substance can enter and exit the cell?
Selective permeable
What is a characteristic of a cell membrane that controls which substance can enter and exit the cell?
Selective permeable
What is the characteristic of cell membrane that controls which substance can enter and exit the cell?
Selective permeable
What is the characteristic of a cell membrane that controls which substance can enter and exits the cell?
Selective permeable
Identify the terms endocytosis and exocytose and distinguish between them?
endocytosis is the movement of a substance into a cell by a vesicle. while the movement of a substance by a vesicle tot eh outside of a cell is called exocytosis
If a substance is known to enter a cell by diffusion what effect would raising the temperature have on the cell?
becasue of its energy becasue of its energy
What substance on the plasma membrane help identify chemical signal from outside the cell?
either cilia or protienhs
