Introduction:
The purpose of this prove is to test how divergent environmental factors affect the growth and physiological reactions of different bacterium. Temperature, osmotic pressure, ultra violet radiation, and pH argon the factors of interest in this laboratory. Similar to other organisms, bacterial cells domiciliate only survive within a range of each of these conditions. Outside of this comfort z unmatched the cells begin to break gobble up and ultimately die. Each of these influences affects the bacteria cell in different ways and stack either kill or deliver life for the cell.
Bacteria potbelly grow over a broad range of temperature and they can be classified into quartet groups that define their optima growth. There are the psychophiles (-5°C to 20°C), mesophiles (20°C to 50°C), thermophiles (50°C to 80°C) and hyperthermophiles (above 80°C). Most bacteria falls within only one of the classes listed above and there are exceptions. Bacteria such as Proteus, Pseudomonas, Campylobacter, and Leuconostoc can grow at 4°C and are referred to as psychrotrophs. Temperature can affect several factors in the cell plainly most importantly it directly affects enzyme activity.
Enzyme helps the cell perform metabolic reactions along with many other important reactions, so one can see that it is essential for them to work properly. Enzyme will operate on maximally at the optimum temperature. At temperatures above the optimum, most enzymes will start to denature, and at temperatures below the optimum, enzyme activities are slowed and can often times denature in like manner. Besides from enzyme activities, temperature can also affect the membrane, transpose, and protein production system (ribosomes). At temperature below the optima, transport of nutrient is decreased due to the fluidity changes in the membrane. At temperature above the optima, the lipids in the membrane start to break down. Outside...If you urgency to get a full essay, order it on our website: Orderessay
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