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What is a protein moves molecules across a membrane?
Facilitated diffusion moves molecules through cell membranes passively.
Oxygen and carbon dioxide are exchanged in lungs and through all cell membranes by?
Gas exchanges occur by simple diffusion through the respiratory membrane -- oxygen passing from the alveolar air into the capillary blood and carbon dioxide leaving the blood to enter the gas-filled aveoli.
What bulk transport moves material out of the cell?
passive transport- diffusion, osmosis bulk/ active transport: requires energy ------------------------------------------- A+ -- exocytosis
What benefit does diffusion provide the cell A carries out meiosis B produces protein C carbon dioxide moves and an out of the cell D divides the cytoplasm?
D
Name the process involved in the passage of gas between the alveolus and the blood?
The process involved in the passage of gas between the alveolus and the blood is called gas exchange. This occurs through diffusion, where oxygen moves from the alveolus into the capillaries and carbon dioxide moves from the capillaries into the alveolus.
What is the movement of gases in and out of a cell called?
When a gas moves in and out of a cell it is called diffusion.
What is a protein moves molecules across a membrane?
Facilitated diffusion moves molecules through cell membranes passively.
What moves substances into and out of the cell in facilitated diffusion?
coffee
What can enter a cell by diffusion?
a gas?
What is it called when oxygen moves into a contracting heart muscle cell?
diffusion
What is the proccess by which water moves across a cell's membrane?
Passive diffusion.
What is a gas that usually passes into cells?
Oxygen is the gas that usually passes into cells. It moves by diffusion from the bloodstream.
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!
Which material move through the cell in diffusion?
All the imports and exports of cell moves through plasma membrane by diffusion. Which includes proteins, water, nutrients and the products of the cell. The material in excess amount in or out of the call moves in or out of the by diffusion.
What is something called that moves a substance into and out of a cell in facilitated diffusion called?
A membrane protein known as a transporter or carrier protein moves substances into and out of cells in facilitated diffusion. These proteins are specifically designed to bind to certain molecules and transport them across the cell membrane.
Oxygen and carbon dioxide are exchanged in lungs and through all cell membranes by?
Gas exchanges occur by simple diffusion through the respiratory membrane -- oxygen passing from the alveolar air into the capillary blood and carbon dioxide leaving the blood to enter the gas-filled aveoli.
What process moves materials through a cell from areas of low concentration to areas of higher concentration?
diffusion
