0
Co-transport is when molecules or ions are transported across a membrane (in fixed ratios) at the same time.
One example is the Na/Ca exchanger - which transports Na in and Ca out of the cell simultaneously.
Wiki User
∙ 12y ago
Add your answer:
Earn +20 pts
Are both zinc and iron transported in the blood by a fat carrier?
No. Its by a protein carrier.
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 process involves the use of specific carrier molecules?
two processes requiring the use of protein carrier molecules?
Through what type of proteins does active transport occur?
A carrier protein (as opposed to a channel protein). An example of a carrier protein is the Na+/K+ pump.
What property of the cell membrane enables it to perform active transport?
Embedded in the semi-permeable cell membrane are many different types of carrier proteins or channel proteins. These globular proteins allow the transport of specific substances from the outside of the cell into the cell or vice versa.Specific means each protein can only transport one type of substance across. For example, Protein A can transport Substance X but not Substance Y. Substance Y has to be transported by Protein B which cannot transport Substance X. The specific nature of these globular proteins mean it is easier for these molecules to be transported.
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 :)
Are both zinc and iron transported in the blood by a fat carrier?
No. Its by a protein carrier.
In a sodium-potassium pump what molecules are moved and where are they moved to?
In a sodium-potassium pump a carrier protein uses ATP in Active transport. The sodium ions are transported out of the cells and the potassium ions are transported into the cell.
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.
Which is a factor that determies whether a mole can cross a cell membrane?
Lipid solubility determines if it will diffuse across. The presence of specific protein carrier molecules determines if it will be transported across the membrane.
What are the protein molecules in a cell membrane that assist in cell transport?
Protein molecules are responsible for membrane transport. In passive transport diffusion is the phenomenon in which molecules flow naturally from areas of high concentration to lower concentrations.
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 process involves the use of specific carrier molecules?
two processes requiring the use of protein carrier molecules?
Through what type of proteins does active transport occur?
A carrier protein (as opposed to a channel protein). An example of a carrier protein is the Na+/K+ pump.
What property of the cell membrane enables it to perform active transport?
Embedded in the semi-permeable cell membrane are many different types of carrier proteins or channel proteins. These globular proteins allow the transport of specific substances from the outside of the cell into the cell or vice versa.Specific means each protein can only transport one type of substance across. For example, Protein A can transport Substance X but not Substance Y. Substance Y has to be transported by Protein B which cannot transport Substance X. The specific nature of these globular proteins mean it is easier for these molecules to be transported.
Can you give me an example of a protein made on the rough ER that is transported out of the cell?
the ribosome
How do solute molecules pass through the membrane?
The solute molecule, when passing through the membrane passively using a carrier protein, is called the substrate. The solute, or substrate will bind to the carrier protein from the outside, the carrier protein changes conformation, and the substrate is exposed to the inside of the membrane.
