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6-Renal transport Process2016-04-24 09:402.6 MB
6-Renal transport Process2016-04-24 09:402.6 MB

... collecting duct (CD) Late DCT: • Principle cells: – reabsorb Na+, Na+ diffuses via selective channels – Reabsorb water – secrete K+ ...
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... fluid-filled tubes that transport materials, such as proteins, through the cell _________ a single layer of membrane enclosing fluid in a sac ________ ________ contains genetic information that controls all cell activities functions to allow some substances to enter while keeping others out ________ ...
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... G1 phase (for Gap 1), the S phase (for synthesis), and G2 phase (for gap 2). • The cell only duplicates its chromosomes (DNA) during the S synthesis phase. Thus a cell grows (G1), continues to grow as it synthesizes DNA and duplicates chromosomes (S), grows more and completes preparations for cell d ...
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Cell membrane



The cell membrane (also known as the plasma membrane or cytoplasmic membrane) is a biological membrane that separates the interior of all cells from the outside environment. The cell membrane is selectively permeable to ions and organic molecules and controls the movement of substances in and out of cells. The basic function of the cell membrane is to protect the cell from its surroundings. It consists of the phospholipid bilayer with embedded proteins. Cell membranes are involved in a variety of cellular processes such as cell adhesion, ion conductivity and cell signalling and serve as the attachment surface for several extracellular structures, including the cell wall, glycocalyx, and intracellular cytoskeleton. Cell membranes can be artificially reassembled.
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