What is a normal flora in microbiology?

Normal flora are the microorganisms that live on another living organism (human or animal) or inanimate object without causing disease. The human body is not sterile; we become colonised by bacteria from the moment we are born.

How do you write a microbiology lab report?

A lab report differs from a paper in that it has defined sections. The sections required vary from laboratory to laboratory but the standard outline for most lab reports in the biological science include: title, your name, purpose of the experiment, methods, results, discussion and conclusion, references.

Is normal flora Positive or negative?

Lack of normal flora also makes animals more susceptible to infection with a variety of pathogens, particularly those that infect the GI tract. Although lack of normal flora generally has negative effects, it does also result in an absence of dental caries and lower body fat.

What are characteristics of normal flora?

Characteristics of the Normal Flora Normal flora contains more than 200 bacterial species, among which gram-positive bacteria predominate. The factors influencing the normal microflora include age, diet, nutrition, sex, and immune conditions of a person. Microbial flora has Spatio-temporal complexity.

What is the significance of normal flora?

The normal flora prevent colonization by pathogens by competing for attachment sites or for essential nutrients. This is thought to be their most important beneficial effect, which has been demonstrated in the oral cavity, the intestine, the skin, and the vaginal epithelium.

How do you show the results in a lab report?

The sample calculation should start with the equation to be used (where appropriate, refer to an equation in the body of the report or to the literature source of the equation). Then, present the value of each number to be substituted into the equation and an appropriate reference.

What are two types of normal flora?

Although there are many different species of normal flora, these microbes typically fall into one of two categories: 1. resident microbes & 2. transient microbes.

Is E coli normal skin flora?

Enterobacter, Klebsiella, Escherichia coli, and Proteus spp. are the predominant Gram-negative organisms found on the skin. Acinetobacter spp also occurs on the skin of normal individuals and, like other Gram-negative bacteria, is more common in the moist intertriginous areas.