Explain the basic relationship between humans and microorgan

Explain the basic relationship between humans and microorganisms

Answer=

The basic relationship between humans & microorganisms are as follows

The surfaces of human body inside & outside ,for example skin ,mouth & intestines are covered in millions of individual microbes

The microbes that do not harm in fact they helps to protect us becoming infected with harmful microbes they are known as normal body flora

There are 3 types of symbiotic relationships between humans & bacteria

1] Commensalism = Is a relationship that is beneficial to the bacteria ,but does not help or harmthe host

most are reside on epithelial surfaces that come in contact with the external environment

commonly found on skin ,respiratory tract & gastrointestinal tract

They aquire nutrients & place to live & grow from their host

some are pathogenic & cause disease may provide benefit to host

2] Mutuliastic relationship-=

Both bacteria & host are beneficial

for example there are several kinds of bacteria that live on skin & inside the mouth ,nose,throat & intestines of humans

These bacteria received a place to live & feed while keeping other harmful microbes from taking up residence

bacteria in digestive system assist in nutrient metabolism ,vitamin production & waste processing

3] Parasitic relatioship= is one in which the bacteria benefit while the host is harmed

pathogenic parasites ,which cause disease,do so by resisting the hosts defences & growing at the expense of host

These bacteria produces poisonous substances called endotoxins & exotoxins are responsible for the symptoms to occure with an illness

Disease causing bacteria are responsible for a number of diseases including meningitis ,pneumonia .tuberculosis& several types of food borne diseases