week 11 environmental factors intro

week 11 environmental factors intro - Deepika Kaushal BIOL...

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Deepika Kaushal BIOL 351-916 Environmental Factors Though the nutrition availability is important in determining how well an organism will grow in an area, several other factors can decide the success of an organism’s survival as well that can help or hinder the ability to maintain homeostasis and metabolize nutrients. Every organism is evolved to perform most efficiently within an optimal range of these factors and any deviation too drastic can inhibit growth. To observe how certain variables can affect bacterial growth, we conducted a series of experiments to test the viability of organisms in several settings of pH, temperature and osmotic pressure. These tests not only tell if an organism is viable or not at a specific point, but indicate what an optimum range of temperature, pH or osmotic pressure may be for growth. Temperature is an important determinant of viability for an organism. All organisms grow within a minimal and maximal temperature range and grow most abundantly at a unique optimum temperature. Together, these are called cardinal temperatures. In class, usually mesophiles are used, or those organisms which grown
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This note was uploaded on 12/07/2011 for the course BIOL 351 taught by Professor Sig during the Fall '08 term at Texas A&M.

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week 11 environmental factors intro - Deepika Kaushal BIOL...

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