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What is it called when a cell membrane closes around a molecule to allow the molecule to enter the cell?
Wiki User
∙ 12y ago
selectively permiable membrane (you might want to double check that though...)
Wiki User
∙ 12y ago
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A membrane that partially closes the vaginal canal?
The Hymen
What is closes over you larynx when you swallow?
what closes over your larynx when you swallow.
What proteins act like selective passageways in the cell membrane?
The lipid bilayer is a tightly packed membrane of hydrophobic (dont like water) molecules, so only hydrophobic or very very small molecules can go directly through it. Large molecules such as hormones need to have a special hole in the membrane that they can fit through, but some are so large that if the membrane created a plain old hole, everything would be able to fit through, even things the cell doesnt want. The proteins create special openings that allow only a specific variety of molcule to go through, like only a special type of hormone. They work a lot like a lock and key, so when the molecule encounters its protein, it acts like a key and opens the portal. once the molecule passes, the protein closes the opening and nothing else can go through.
What is the function of the orbicularis oris?
Closes the mouth and puckers the lips.
Describe how synapses work?
The action potential reaches the pre synaptic area, which opens a voltage sensitive Calcium ion gate, allowing calcium ions to move in via diffusion along an electrochemical gradient. The period of refraction (repolarisation) closes this gate. The increased conc. of Calcium ions pushes vesicles with neurotransmitter to the presynaptic membrane, where they fuse and exocytosis causes the neurotransmitter to be released across the synaptic cleft. The NT binds to a receptor which opens Na+ channels on the postsynaptic membrane, allowing depolarisation due to Na+ diffusion which continues the action potential across the other neurone. The neurotransmitters are broken down by enzymes or are reabsorbed by endocytosis into the presynaptic cleft, using energy from ATP.
What is it called when part of the cell membrane closes around a molecule to allow the molecule to enter it?
This is called endocytosis.
What is it called when part of a cell membrane closes around the molecule to allow the molecule to enter the cell?
This is called endocytosis.
What it is called when part of the cell membrane closes around a molecule to allow the molecule to enter the cell?
This is called endocytosis.
When is it called when part of a cell membrane closes around a molecule to allow the molecule to enter the cell?
This is called endocytosis.
What is it called when part of a cell membrane closes around molecule to allow the molecule to enter the cell?
This is called endocytosis.
What is it called when a part of a cell membrane closes around molecule to allow the molecule to enter the cell?
This is called endocytosis.
What is it called when part of a cell membrane closes around a molecule to allows the molecule to enter the cell?
This is called endocytosis.
What is it call when part of the cell membrane closes around a molecule to allow the molecule to enter?
This is called endocytosis.
What is it called when a part of a cell membrane closes around a molecule to allow the molecule to enter the cell?
This is called endocytosis.
What is it called when part of a cell membrane closes around a molecule to allow the molecules to enter the cell?
Endocytosis
What is it called when part of the cell closes around a molecule to allow the molecule to enter the cell?
This is called endocytosis.
How are vesicles typically formed?
chemical energy that is contained in and transported by the molecule called (ATP) Adenosin Tri Phosphate.
