Serge Francois | Physiology of Bacteria

Category: Others/ Misc

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Serge Francois has become owner of Texas. Southlake Vitality Health & Wellness Center is a Individual Membership Healthcare Association with our major focus on the patient’s health and fitness, durability, energy and anti-aging. It's essential to know that we deal with sufferers based on the individual’s physical, metabolic, and biochemical makeup. Mixing nutrition guidance, anti-aging treatments for different ailments.


Presentation Transcript

Serge francois | Physiology of Bacteria:

Serge francois | Physiology of Bacteria Serge Francois

Bacterial Colony:

Bacterial Colony “A noticeable group of viruses growing on a strong method, presumably as a result of a single microorganism”

Requirements for Growth:

Requirements for Growth Physical: Temperature, pH, light, osmotic pressure, moisture Chemical: Carbon, nitrogen, sulfur, phosphorus, trace elements, oxygen


Psychrophilic Desulfofrigus oceanense (Arctic and Antarctic Oceans )


Mesophiles E. coli


Thermophiles Fossilized Microbes from Yellowstone’s Hot Springs


Temperatures Minimum: “temperature below which bacterial growth will not take place” Optimum: “temperature at which organisms grow best” Maximum: “temperature above which bacterial growth will not take place”


Moisture Maximum, optimum and minimum requirement for all microorganisms Pathogenic bacteria are usually found in the body’s tissues Fungal diseases are usually found on the body surface.

Heterotrophic Bacteria:

Heterotrophic Bacteria 3 categories: 1) strict (obligate) saprophyte 2) strict (obligate) parasite 3) facultative bacteria: Facultative saprophyte: “prefers live organic matter as a source of nutrition but can adapt to the use of dead organic matter under certain conditions” Facultative parasite: capable of living and growing with the nutrients that its host provides


Carbon One of the most important requirements for microbial growth Structural backbone of living matter Needed for all the organic compounds that make up a living cell ½ of the “dry weight” of a bacterial cell is carbon


Oxygen Microbes that use molecular oxygen (aerobes) produce more energy from nutrients than microbes that do not use oxygen (anaerobes) Reading question four: Describe the difference between obligate aerobes and obligate anaerobes.

Microaerophilic Organisms:

Microaerophilic Organisms “a microorganism that requires very little free oxygen” only grow in oxygen concentrations that are lower than those in air require about 2 – 10% free oxygen

Microbial Associations:

Microbial Associations Normal Flora (Microbiota) Transient microbiota Symbiotic relationship: “organisms live in close nutritional relationships; required by one or both members” Distinguished by the degree to which the host organism is harmed


Parasitism “An entertaining connection between two creatures in which one is injured and the other benefits” Many disease-causing viruses are parasites Typically the variety is macroscopic and the parasite is microscopic Roundworms and flatworms are harmful viruses that are huge multi-cellular organisms


Antagonism “Mutual resistance or opposite activity. The self-consciousness of one organism by another.” Involves competitors among microbes Normal microbiota secure the variety against colonization by possibly pathogenic microbes Normal plants generate ingredients bad for the infiltrating bacteria (pH, oxygen)


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