41. :Concentration gradient is the rate of change in the concentration of a substance along a given direction. 42. It speaks to a concentration gradient of 0 of the solute concentration gradient across the lateral intercellular space. 43. It speaks to a concentration gradient of 0 of the solute concentration gradient across the lateral intercellular space. 44. ATP Binding Cassette or efflux transporters mediate the transport of substrates across cell membranes against a concentration gradient . 45. Generally, GLUT-1 acts as a facilitative transporter of glucose, transporter glucose along its concentration gradient . 46. When concentration gradients of the species are also present, diffusion transports the species relative to the mean flow. 47. Active transport involves the use of energy to transport specific substrates across barriers, even against the concentration gradient . 48. Active transport enables these cells to take up salts from this dilute solution against the direction of the concentration gradient . 49. A diagram showing the progression in the development of a membrane potential from a concentration gradient ( for potassium ). 50. The production of carbon dioxide and use of oxygen by the spider maintains the concentration gradient , required for diffusion.
