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Facilitated diffusion moves molecules through cell membranes passively.
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What role do carrier protein play in facilitated diffusion?
it moves large molecules or molecules that are not soluble in lipids across across the cell membrane. (Pg. 101 in science book...1st para.)
What is it called a molecule moves across a membrane through a protein channel without using energy?
Passive Transport
What is it called when a molecule moves across a membrane through a protein channel without using energy '?
Passive Transport
What is the difference between facilitated diffusion with the help of a carrier protein and active transport with the help of the transport protein?
Facilitated diffusion is a type of passive transport in which a substance moves across the cell membrane from high to low concentration. In this situation, the substance moves with the concentration gradient, and with the help of carrier molecules, it is able to make it's way across the membrane smoothly and without the expense of energy. Active transport, on the other hand, is the movement of a substance across the cell membrane from low to high concentration, making the transport a bit more difficult and calling for the use of energy. Transport proteins recognize the substance and allow it to cross through the membrane.
Is it true if the process by which water moves across a selectively permeable membrane is called diffusion?
Diffusion is a physical process. When it is performed through a selectively permeable membrane, it is called osmosis. Thus osmosis is an appropriate word for movement of water molecules through a selectively permeable membrane and not diffusion.
What role do carrier protein play in facilitated diffusion?
it moves large molecules or molecules that are not soluble in lipids across across the cell membrane. (Pg. 101 in science book...1st para.)
What moves products through a cell membrane?
Diffusion, facilitated diffusion, Osmosis and Active Transport. Diffusion moves non-polar molecules across the cell membrane down a concentration gradient. Osmosis moves water across the cell membrane through a channel formed by aquaporins called a protein channel, down the water potential gradient. Active moves the non-polar molecules against the concentration gradient, in contrast to diffusion. Lastly, facilitated diffusion moves polar molecules across the cell membrane through creating protein channels in the cell membrane from specific proteins. ETC, glucose transporters bind to form a protein channel for glucose to diffuse through, after which the proteins disperse. That should be all, hope it was of help!
What process do water molecules cross the cell membrane?
Process in which water molecules moves across a membrane?
What is is when a molecule moves across a membrane through a protein channel without using energy?
Passive Transport
What is it called a molecule moves 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
What is it called when a molecule moves across a membrane through a protein channel without using energy '?
Passive Transport
What role do carrier proteins in facilitate diffusion?
it moves large molecules or molecules that are not soluble in lipids across across the cell membrane. (Pg. 101 in science book...1st para.)
The cell uses energy to transport glucose through the cell membrane?
Glucose moves across the cell membrane through facilitated diffusion. This type of transport uses protein carriers to assist glucose molecules across the cell membrane from an area of high concentration to an area of low concentration.
The energy-requiring process that moves molecules and ions across a cell membrane against a concentration difference is called?
Active transportation
What is the energy-requiring process that moves molecules and ions across a cell membrane against a concentration difference is clled what?
active transport
What is the difference between facilitated diffusion with the help of a carrier protein and active transport with the help of a transport protein?
Facilitated diffusion is a type of passive transport in which a substance moves across the cell membrane from high to low concentration. In this situation, the substance moves with the concentration gradient, and with the help of carrier molecules, it is able to make it's way across the membrane smoothly and without the expense of energy. Active transport, on the other hand, is the movement of a substance across the cell membrane from low to high concentration, making the transport a bit more difficult and calling for the use of energy. Transport proteins recognize the substance and allow it to cross through the membrane.
