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Why does haemoglobin molecule act as efficient carrier of oxygen than diffusion process?
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What are the main characteristics of facilitated diffusion?
both require special carrier molecule to move substances across the membrane
What are three types of passive transport?
Diffusion- is the movement of the substance from an area of higher concentration to an area of lower concentration,Osmosis- is the diffusion of water molecule only through a membrane semipermeable cell membranes allow water to pass through them until equilibrium occurs.Facilitated Diffusion- carrier proteins, and channel proteins it occurs when molecule pass through a cells membrane.
Does osmosis require a carrier?
NO. Osmosis( by definition) is the DIFFUSION of water from a high concentration gradient to a low concentration gradient across a semipermeable membrane. As diffusion is a form of passive transport, it doesnt require a carrier
What is the difference between simple diffusion and facilitated diffusion?
It doesn't. (answer by RRU member Cyrem)
How does the absorption of fatty acids and glycerol differ from the absorption of amino acids and simple sugars?
Once the lipid undergoes lipid digestion it can undergo simple diffusion across the plasma membrane. Glucose and amino acids require transport via a carrier molecule.
What three major processes of nutrient absorption must be combined with a carrier molecule for transport?
Facilitated diffusion and Active transport must be combined with a carrier molecule for transport. Simple diffusion does not.
Why isnt cellular energy required for the passenger molecule to be carried across the cell membrane by the carrier molecule?
Because of facilitated diffusion(, which nutralizes it from a higher to a lower concentration.)
What is the process by which substances are moved through the cell membrane by a carrier molecule?
facilitated diffusion or active transport
What are the main characteristics of facilitated diffusion?
both require special carrier molecule to move substances across the membrane
What molecule movement is when glucose leave your blood streem and enter your cells by attaching to specialized carrier proteins?
Facillitated diffusion
What is the use of carrier proteins for diffusion?
facilitated diffusion.
Which type of transport occurs when a membrane protein binds to a molecule on one side of the cell membrane and then releases it on the other side?
well daa its facilitated diffusion :] -Aime-
A type of diffusion that uses carrier molecules but no energy?
diffusion
What cell membrane structure allows water-soluble materials to be passively transported to the cytoplasm?
Carrier proteinsProteins in the cell membrane that assist with facilitated diffusion are known as carrier proteins since they carry materials across the membrane. Carrier proteins bind to a molecule on one side of the membrane, change shapes to shield the molecule from the lipid bilayer, and then release the molecule on the other side of the membrane
What is the protein that allows facilitated diffusion of water?
In the facilitated diffusion the transport protein is needed as well in the active transport.
What carrier molecules are involved in the process of what type of diffusion?
Carrier molecules are not involved.Different between chemical potential leads the diffusion
Does facilitated diffusion require membrane proteins?
NO, it does not always require a carrier protein!!
