• podocytes
  • As in nonbiological examples of ultrafiltration, pressure (in this case blood pressure) and concentration gradients lead to a separation through a semipermeable membrane (provided by the podocytes). (wikipedia.org)
  • cell membrane
  • Facilitated diffusion, also called carrier-mediated osmosis, is the movement of molecules across the cell membrane via special transport proteins that are embedded within the cellular membrane. (wikipedia.org)
  • Carrier proteins and channel proteins allow for the diffusion of molecules across the cell membrane. (wikipedia.org)
  • Filtration is movement of water and solute molecules across the cell membrane due to hydrostatic pressure generated by the cardiovascular system. (wikipedia.org)
  • molecules
  • Osmosis is the movement of water molecules across a selectively permeable membrane. (wikipedia.org)
  • The net movement of water molecules through a partially permeable membrane from a solution of high water potential to an area of low water potential. (wikipedia.org)
  • William
  • Bowman, William (1857), The Physiological Anatomy and Physiology of Man, Philadelphia: Blanchard and Lea, retrieved 2008-08-03 , full download available at Google Book Search. (wikipedia.org)
  • Bowman, William (1849), Lectures on the parts concerned in the operations on the eye, and on the structure of the retina: Delivered at the Royal London Ophthalmic Hospital, Moorfields, June 1847. (wikipedia.org)
  • Part II: Karl Ludwig versus Rudolph Heidenhain and William Bowman. (wikipedia.org)
  • Journal of medical biography, 8 (1), pp. 32-8, PMID 10994045 Eknoyan, G (December 1996), "Sir William Bowman: his contributions to physiology and nephrology. (wikipedia.org)
  • Thomas, K.B. The manuscripts of Sir William Bowman. (wikipedia.org)
  • proteins
  • Therefore, it will bind with its specific carrier proteins, and the complex will then be bonded to a receptor site and moved through the cellular membrane. (wikipedia.org)
  • passive
  • If there are different solutions at the two sides of the membrane with different equilibrium solubility of the drug, the difference in degree of saturation is the driving force of passive membrane transport. (wikipedia.org)
  • Active transport of protons by H+ ATPases alters membrane potential allowing for facilitated passive transport of particular ions such as Potassium down their charge gradient through high affinity transporters and channels. (wikipedia.org)
  • concentration
  • Osmosis is much like simple diffusion but it specifically describes the movement of water (not the solute) across a selectively permeable membrane until there is an equal concentration of water and solute on both sides of the membrane. (wikipedia.org)
  • cells
  • It may be primary (formed by egg itself, as in vitelline membrane), secondary (formed by follicle cells, as in zona pellucida), or tertiary (formed by oviduct or uterus, as in albumin and shell of hen's egg). (thefreedictionary.com)
  • On the other hand, the membrane pores of liver cells are extremely large, but not forgetting cells are extremely small to allow a variety of solutes to pass through and be metabolized. (wikipedia.org)
  • solutions
  • Bowman disk - disk resulting from transverse segmentation of striated muscular fiber treated with weak acids, certain alkaline solutions, or freezing. (thefreedictionary.com)