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it lets in material to the cell which it needs like a filter it allows water but not other material.
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∙ 10y ago
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What is a carrier protein?
A carrier protein is a protein that helps with diffusion of various molecules. Carrier proteins also use ATP to move cell materials.
How does a protein transport substances across a cell membrane?
carrier protein
What protein helps things across a cell membrane?
Carrier Protein
Glucose and no other sugar is transported into cells by protein carrier molecules in the cell surface membrane. How do carrier molecules specifically recognize glucose?
the receptors on the protein carrier recognise glucose allowing it to enter the cell :)
What is processed by a cell expels wastes from a vacuole?
carrier protein
What carrier protein takes sugar into a cell with out energy?
osmosis
What changes occur to a carrier protein once it binds to its target molecules?
the carrier protein changes shape to release the molecule inside of a cell
What does a cell use during facilitated diffusion to help get substances in or out of the cell?
carrier protein
How does as large particle leave a cell using active transport?
It requires energy, and a carrier protein. The large particle binds to the carrier protein on the inside of the cell. The protein then changes conformation, thus moving the particle to the outside, where it is dropped off by another conformational change in the protein.
Primary active transport involves a conformational change in the carrier protein The most immediate stimulus for this is?
phosphorylation (binding of the carrier protein to a phosphate group) within the cell
What substances enter the cell by attachment to a passive transport protein carrier?
Phospholipids
What substance enters the cell by attachment to a passive-transport protein carrier?
Phospholipids
