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Presentation GRP1 Notes

Presentation GRP1 Notes - Slide 1 This is an example of a...

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Slide 1: This is an example of a barophile that is dependent upon an environment with high pressure Mostly microorganisms in the deep sea are affected by pressure. To fully understand pressure as an extreme environment we must explain why pressure increases the further you go under the sea. Slide 2: Hydrostatic pressure is the pressure exerted by a fluid at equilibrium due to the force of gravity. If you think about a small cube of fluid, the only pressure being exerted on it at rest is the weight of the water directly about it and the pressure of the atmosphere. Equation: P*=Patm+pgh P*=Hydrostatic Pressure p= density of liquid g=gravitational acceleration h=depth Most organisms live at pressure of 1 atm Slide 3: Barophiles are Micro or Macro organisms that thrive in environments where the pressure is unusually high or greater than 1 atm. Barophiles reproduce slower than most other extremophiles because they are at high pressure and freezing temperatures.
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