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Large molecules are typically moved into the cell during a process called "endocytosis". During this process, a molecule binds to a "receptor" protein, a cell surface protein which is anchored within the cell membrane. The cell then begins to fold the membrane inward, forming a pocket called an "invagination" which contains the molecule bound to the receptor. Eventually, the invagination pinches off the cell membrane and becomes a small vacuole, or an "endosome". These endosomes can be moved throughout the cell to where the large molecules are needed or processed. If the large molecule is needed within the cytoplasm, it is transported out of the endosome through a protein complex that forms a pore across the endosome membrane. These transport processes all require the use of ATP.
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∙ 12y ago
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∙ 14y agoLarge molecules enter through endocytosis and leave cell through Phagocytossis
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∙ 13y agoExocytosis takes substances out of the cell and endocytosis brings substances into the cell.
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∙ 13y agoUsually by a process called phagocytosis in which the cell engulfs the particle and forms a vacuole from that section of the cell membrane.
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∙ 11y agois called diffusion
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∙ 10y agoEndocytosis
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What moves substances in and out of a cell?
Most molecules can move in and out of a cell, but different molecules have different methods of getting in- Small Non-Polar molecules can diffuse across the lipid bilayer Medium sized molecules of any kind require a specific protein channel HUGE MOLECULES require a process called endo and exocytosis
What make osmosis and diffusion the same?
Molecules travel across the cell membrane from a higher concentration to a lower concentration during both osmosis and diffusion. Diffusion is when molecules move across the cells' membrane from a higher concentration to a lower concentration. Osmosis is the diffusion of water.
Is The high concentration of mineral ions in the plant cells causes water molecules to move into the plant by diffusion?
False
What is the definition of diffiusion in science terms?
Diffusion in Biology is when atoms and small molecules move across the cell membrane.
How does osmosis occour?
It occurs when the medium surrounding the cell has a higher water concentration than the cell, the cell will gain water. At the same time many important molecules, and particles for growth, also move from one cell to another.
In which process in which process this is so you molecules does the cell use a vesicles to move molecules into the cell?
cells
How do large cells move across the cell membrane?
There cannot be large cells inside a cell.
What process does the cell use a vesicle to move molecules out of the cells?
Exocytosis is the process that moves molecules from the inside of the cell to the outside. This process uses sacs or vesicles to move the molecules out.
Do large cells move across the cell membrane quickly?
A large cell will never move across an intact cell membrane.
Why molecules move into and out of cells?
Molecules move in and out of the cell by difffusion process and only those molecules which have size smaller then pore size of plasma membrane can move in and out of the cell. The second factor is ionic conc or is also known as conc gradient according to which molecules of required ionic status can move in and out of the cell
In which process does a cell use a vesicle to move molecules into the cells?
Endocytosis (APEX)
Infer why endocytosis and exocytosis are important processes to cells?
because some molecules and partcles are too large to move by diffusion or to use the cell membranes transport proteins.
What two processes move large packets of molecules across the cell membrane?
osmosis and diffusion
What large molecules use proteins to help move across cell membranes?
carbohydrates
Some materials can move across the cell membrane against a concentration gradient by?
Large molecules such as glucose that cannot cross the phospholipid bilayer can still move across the membrane through transport proteins by active transport. Active transport uses energy to move molecules the bilayer.
Why did molecules move in and out of the cell?
it gets easier as the cells move in and out because the nucleus helps push through the core. just kidding, i have no idea
How will the cell maintain homeostasis if it is hypertonic?
Part of the cell that functions to maintain homeostasis relative to the cell's passage of large molecules and particles to an area outside the cell.
