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Why does haemoglobin molecule act as efficient carrier of oxygen than diffusion process?
Hemoglobin is more efficient than diffusion in transporting oxygen because it can bind to oxygen molecules at high partial pressures (like in the lungs) and release them at lower partial pressures (like in the tissues). This enables hemoglobin to transport more oxygen throughout the body than diffusion alone. Additionally, hemoglobin can carry oxygen in a concentrated form, delivering more oxygen per unit volume compared to simple diffusion.
What else can I help you with?
What are the main characteristics of facilitated diffusion?
Facilitated diffusion is a type of passive transport that relies on carrier proteins to move specific molecules across the cell membrane. It does not require energy input from the cell and moves molecules down their concentration gradient. Facilitated diffusion is selective, allowing only specific molecules to cross the membrane based on their size and charge.
How does faciliated diffusion work?
Facilitated diffusion is the process in which a membrane protein helps (facilitates) a substance pass through the bilayer. For example, water is too big a molecule to passively diffuse through the phospholipid bilayer and does not need to be actively imported. So the solution to this, is to put a transmembrane protein in the bilayer to form a channel big enough for the water molecule to pass through. I don't know how much you need to know, but just as a side note, the channel protein will be in its secondary structure, either as a beta sheet or alpha helix. I hope that helps.
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.
What is the difference between simple diffusion and facilitated diffusion?
It doesn't. (answer by RRU member Cyrem)
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
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 three major processes of nutrient absorption must be combined with a carrier molecule for transport?
The three major processes of nutrient absorption requiring a carrier molecule for transport are facilitated diffusion, active transport, and cotransport (symport). These processes are essential for the absorption of nutrients such as glucose, amino acids, and ions in the small intestine. The carrier molecules help transport these nutrients across the cell membrane.
What is the process by which substances are moved through the cell membrane by a carrier molecule?
facilitated diffusion or active transport
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.
A type of diffusion that uses carrier molecules but no energy?
diffusion
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
What role do carrier protiens play in facilitated diffusion?
facilitated diffusion is also called cell-mediated diffusion because a substance transport in this manner diffuses through the membrane using a specific carrier protein to help.first, carrier protein binds to the binding site of the carrier protein ,and then there is a conformational change in the shape of the carrier protein that helps the molecule to diffuse other side of the membrane.
A carrier molecule is required for?
A carrier molecule is required for transporting ions or molecules across a membrane, such as in facilitated diffusion or active transport. They bind to specific substances, undergo a conformational change, and release the substances on the other side of the membrane.
What are the main characteristics of facilitated diffusion?
Facilitated diffusion is a type of passive transport that relies on carrier proteins to move specific molecules across the cell membrane. It does not require energy input from the cell and moves molecules down their concentration gradient. Facilitated diffusion is selective, allowing only specific molecules to cross the membrane based on their size and charge.
What is the difference between facilitated diffusion with the help of a carrier molecule with the help of a transport protein?
Facilitated diffusion is a type of passive transport (does not require energy). It is called facilitated diffusion because it utilises the carrier protein to diffuse through it. Active transport requires energy to pump certain big molecules to cross over and this uses transport protein. Basically, the difference is just the usage of energy.
What are the four types transport mechanisms of drugs?
There are four types of transport mechanisms of drugs.1) Passive transfer includes A)Simple diffusion, means from higher concentration to lower concentration. B) Through Filtration, means through small pore in membrane. 2) Carrier mediated transport includes A) Active transport, in witch a carrier protein takes in a drug molecule with spending energy. B) Facilitated diffusion, by witch carrier protein molecule takes in the drug without spending energy and come back to take another drug molecule inside the cell.
