The integral membrane proteins called transporters that mediate movement of molecules across a membrane by diffusion. In order to achieve such movement, a solute (molecule to be transported) binds to a specific site on a transporter (large peptide) on one surface of the membrane. The transporter then changes shape in order to expose the bound solute to the opposite side of the membrane. The solute then dissociates from the transporter and reached on the other side of where it started. There are various types of transporter having specific binding sites which bind specific substances depending on the membrane and the need of cellular environment.
moving a large molecule such as glucose against its own concentration gradient and in the opposite direction of passive diffusion of NA+ is Moving a large molecule such as glucose against its own concentration gradient and in the opposite direction of passive diffusion of Natis: Co-Transport B. Facilitated Diffusion c Primary Active Transport Counter-Transport
Secreted or membrane-bound proteases can provide another simple, yet effective resistance strategy against antimicrobial peptides, by effectively cleaving and inactivating them. why nowadays ,many antimicrobial peptides still can be used in the antimicrobial area and as a novel drug to kill bacterila? and the antimicrobial peptides how to avoid the proteases to inactivating it???
Molecule A is rapidly consumed by cells. Membrane Protein A is a carrier protein that allows molecule A to move across a cell membrane. How would inhibiting the expression of the gene that codes for Membrane Protein A affect intracellular and extracellular concentrations of molecule A?
How can a signaling molecule be interpreted in different ways by cells in the body?
Cars A and B move in the same direction in adjacent lanes. The position of car A is given in the figure. At t=0, car B is at x=0, with a velocity of 10 m/s and a negative acceleration. What must be that acceleration such that the cars arc side by side when t=6 sec? For that value of the acceleration, how many times will the cars be side by side?
Where do regulatory T cells develop, and how do they protect against autoimmunity?
Transporters move molecules against their concentration gradient by: A. Facilitating passive diffusion. B. Using the energy of ATP hydrolysis. C. Coupling to the concentration gradient of another molecule. D. A and B E. B and C F. A and C G. None of the above. H. All of the above
A nitrogen molecule is initially in a large volume of calm air at STP. How many collisions does the nitrogen molecule suffer in 10 minutes? What is the length of the path traveled by the molecule? On he average, how far will the molecule be from its starting point at the end of the 10 minutes?
Cars A and B move in the same direction in adjacent lanes. The position x of car A is given in the figure, from time t = 0 to t = 7.0 s. The figure's vertical scaling is set by xs = 48.0 m. At t = 0, car B is at x = 0, with a velocity of 18.0 m/s and a negative constant acceleration aB. (a) What must aB be such that the cars are (momentarily) side by...
Cars A and B move in the same direction in adjacent lanes. The position x of car A is given in the figure, from time t = 0 to t = 7.0 s. The figure's vertical scaling is set by xs = 32.0 m. At t = 0, car B is at x = 0, with a velocity of 12.0 m/s and a negative constant acceleration aB. (a) What must aB be such that the cars are (momentarily) side by...