INTE 398 Lecture Notes - Lecture 9: Nutrigenomics, Music From The Body, Adrenal Gland
21 Apr 2018
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Document Summary
Water: osmosis, functions of water in the body, role of the kidneys, water deficiency and toxicity. Energy: what is metabolism, what is atp, energy input and output, genes and environmental factors. Water is a major component of body cells. To function properly the body must maintain the correct amount of water in each compartment. Water molecules move toward compartments with the highest concentration of solutions. Chemistry golden rule #3 where ions go, water follows (osmosis) By controlling the amounts of solutes within each compartment, the body can control the amount of water inside and outside the cells. Osmosis is crucial for understanding fluid balance: the diffusion of water through a selectively permeable membrane (water moves to where solutes are more concentrated) Free moving water molecules move with relative ease. Water molecules that are hydrogen bonded to the solutes do not move freely. The body maintains the balance of compartmental fluids by controlling concentrations of ions in each compartment.
