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The renal corpuscle filtration barrier is composed of: the fenestrated endothelium of glomerular capillaries, the fused basal lamina of endothelial cells and podocytes, and the filtration slits of the podocytes.
Filtration
Diffusion, filtration (hydrostatic pressure), active transport, and vesicular transport.
Mitochondria are needed in order to supply the energy for the active transport of sodium ions out of the cells in the proximal tubule to create a concentration gradient which allows more sodium ions to enter the cell from the luminal side.Water passively follows the sodium out of the cell along its concentration gradient.
Some will, and some will not. It is what they do, and what they are willingly doing. If a firefighter does not want to enter a burning structure, they are not required to. That does notmean the ones who get scared will not enter a burning structure when they need to.
yes '
xylem
Nuclear Pores
intracellular.
+ve charge
pupil
Cell membrane