2.718 and ~ 31 ends completely on u and Microbiology Lab Page 2 Today we know th

Question

2.718 and ~ 31 ends completely on u and Microbiology Lab Page 2 Today we know that we live in a symbiotic relationship with microorganisnis b the exception of some some protozoa and yeasts. The deep ti diversity. How can that be possible? What are the "outer" coverings? primarily bacteria, but also karyotic protozoan parasites, but the "outer" coverings of the body are rich in microorganism sues are fairly microorganism-free, with the exception of some In fact there are more bacteria in our intestinal tract than there are cells in our body. Until fairly recently, scientists considered the microorganisms that live in or on our bodies to be commensal. Commensal organisms are those that benefit from a host species species, either positively or negatively. The idea was that the microorganisms benefited from the environment of our bodies, but our bodies weren't really affected by their presence. without affecting the host Today we know that that is not the case. Our bodies are constantly interacting with our symbiotic bacteria in a variety of ways. We have a mutualistic relationship with most of our symbiotic bacteria; them. In the gut, they provide a barrier against the colonization secrete antimicrobial compounds to combat pathogenic bacteria. They help us digest complex we benefit tremendously from other pathogenic bacteria, carbohydrates such as starch and fiber that we wouldn't be able to digest otherwise. The byproducts of terial metabolism then may be absorbed and used by the human body for a variety of purposes which may help reduce the risk of a number of diseases including high cholesterol, obesity, heart disease, and diabetes. That's why doctors are always telling you to eat your fruits and vegetables; they are full of starch and fiber Some of our symbiotic bacteria may be classified as pathogenic, or disease causing. Dental cavities are caused by the interaction of several types of bacteria. One type in particular can adhere to the surface of the tooth, where it converts sugars into an acid. This acid weakens enamel and begins the decay process. Once the decay process begins, other bacteria can contribute to the breakdown of the tooth. Sucrose (table sugar), is just the right combination of glucose and fructose: glucose helps the pathogenic bacteria cling to the surface of the tooth and the fructose is converted into acid. Our most common sweetener is also our teeth's greatest enemy What other types of bacteria do you hear about that are pathogenic? Many of our mutualistic bacteria are also opportunistic. This means that they will take advantage of any opportunity to grow beyond the body's normal tolerance level. Often, when you are sick with one illness, you will have unrelated side effects due to opportunistic growth of one of your normally mutualistic bacteria. Influenza, a respiratory virus that causes muscle aches and fatigue, is often accompanied by a "stomach bug" that may cause vomiting or diarrhea. While you are sick with influenza, your normal (homeostatic) body conditions get a little off, which may allow one of your symbiotic microorganisms to increase its growth rate, which may then result in additional illness. For example, your Escherichia coli, in normal body conditions, is mutualistic and gives the body benefits, but when it grows out of control, it can cause diarrhea; if E. coli is grows into your small intestine where it can be absorbed into your bloodstream, it acts as a poison. The most common type of yeast in the body is Candida albicans. It inhabits all of the body surfaces, but Cdido olhicaus is the yeast of yeast infections, oral and anal thrush,

Explanation / Answer

Yes it is possible . According to reports bacteria outnumber cell in the ratio 10: 1.

44 different types of bacteria just reside in our forearm compared to 19 different types of species living behind our ear. It is hard to imagine but we host billions of bacteria just in our digestive system. As because the generation time of bacteria is very small..so they replicate fast and colonize any area massively.its intresting to know that different types of bacteria reside on different places based on what they desire as a home environment. Starting from Skin to saliva, lungs, ovarian follicle,uterus,conjunctiva,oral mucosa, Gastro intestinal tracts etc etc etc.

Here the outer coverings basically refers to our SKIN.Skin hosts micro-organism starting from bacteria to fungus to mites like demodex.

Some bacteria that are pathogenic are

1. Mycobacterium tuberculosis - causea tuberculosis

2.Clostridium tetani - cause tetanus

3. Streptococcus pyogenes - causes pharyngitis

4. vibrio cholera - causes cholera

5. Mycobacterium laprae - causes leprosy.

6. Streptococcus pneumoniae - causes pneumonia.

7. Haemophilus influenzae- causes influenza

Related Questions

Navigate

• Browse (All)
• Browse 2
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.