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What type of molecule embedded in the cell membrance allows larger molecule to pass through the membrance by active transport?
Wiki User
∙ 12y ago
Transport proteins allow the active transport of large molecules through the cellular membrane.
Wiki User
∙ 12y ago
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How do molecules that are too large to cross the membrance enter into the cell?
If the large molecule won't pass through the membrane by diffusion, it might be dragged through the membrane by "endocytosis".
What molecule uses energy to push molecules through the membrane of a cell?
Transport Protein
What happens if a molecule is too large to go through a membrane?
The molecule will be transported across the membrane by way of a transport protein or protein channel.
Does sugar diffuse through the cell membrane?
No. Only non-polar, small molecules can pass through a membrane by simple diffusion. A sucrose molecule is too large a molecule to pass through a membrane by simple diffusion, however, it can pass through a plasma membrane (but not any artificial membranes like Visking tubings) by facilitated diffusion, i.e. through transport proteins(specific carriers for sucrose) embedded in the membranes. ! =)
A special molecule that uses energy to push molecules through a membrane of a cell is called?
Transport protein
What is the process by which substances are moved through the cell membrane by a carrier molecule?
facilitated diffusion or active transport
What is is when a molecule moves across a membrane through a protein channel without using energy?
Passive Transport
What is it called when a molecule moves a membrane through a protein channel without using energy?
passive transport
What is it called when a molecule moves arcross a membrane through a protein channel without using energy?
passive transport
What is it called when a molecule moved across a membrane through a protein channel without using energy?
Passive Transport
What is it called when molecule moves across a membrane through a protein channel without using energy?
Passive Transport
The movement of molecule down a concentration gradient through transport proteins in the cell membrane is a type of?
facilitated diffusion.
