Why Is The Typical Human Mouth Contains A Slaughtering Orgy Of Bacteria?
A. The typical human mouth contains a writhing orgy of bacteria. Most of these. Most of these microscopic organisms are bengin, and some are even beneficial, but one particular variety is a conspicuous troublemaker: Streptococcus mutans. These ubiquitous bacteria thrive on sugars in the mouth, which they consume while excreting lactic acid. This acid is responsible for the great majority of tooth decay in humankind because it erodes the enamel and dentin of the teeth.
B. A Florida-based company called organics may have found a way to rid our mouths of these acid-excreting organisms for good. This would make cavities a thing of the past, and put no small number of dentists out of business. …show more content…
If approved as a treatment, a single visit to the dentist would be all that is obligatory. The patient’s teeth would be swabbed with the modified bacteria for five minutes, allowing it to begin its work. Over the following months, the entire population of the unmodified S.mutans in the mouth would be entirely supplanted. The new organisms’ ability to muscle out the old riff-raff should theoretically allow the new bacteria to reside indefinitely once it is established in the mouth-so it is possible that a single treatment will last for an individual’s lifetime.
E. On the surface it seems like an graceful solution, but clearly there is the potential to upset delicate systems in nature, resulting in possible larger-scale side effects. If S.mutans is present in the ecosystem outside of mouths, there is a chance that the artificial strains might be accidentally introduced into those systems, possibly destroying the natural strains. The acidity in those environments might then be drastically reduced, resulting in unpredictable and irreversible changes. This is a risk shared with many genetically modified …show more content…
Which paragraph contains the following information?
1. No side-effects are observed for the replacement therapy.
2. There is risk of destruction of natural bacterial strains.
3. A new treatment has been found out to stop tooth decay.
4. Excretion of lactic acid is the cause of tooth decay.
5. A single treatment is hoped to prevent tooth decay for life time.
6. There is fear of development of complexities in the environment in the future.
7. Cavities would become a thing of the past.
Questions 8-13
Complete the summary below. Choose no more than two words from the passage for each answer:
Streptococcus mutans …………………(8)………….sugars. A new variety of bacteria has been produced which excrete……………(9)…………. The new strain will …….(10)…….. the unmodified S.mutans in the mouth. There is risk of………(11)……… of natural strains in the environment. According to researchers the recombinant strain of bacteria will not able to ………(12)………. In the outer environment. The elimination of activities will…..(13)……… the quality of
B. A Florida-based company called organics may have found a way to rid our mouths of these acid-excreting organisms for good. This would make cavities a thing of the past, and put no small number of dentists out of business. …show more content…
If approved as a treatment, a single visit to the dentist would be all that is obligatory. The patient’s teeth would be swabbed with the modified bacteria for five minutes, allowing it to begin its work. Over the following months, the entire population of the unmodified S.mutans in the mouth would be entirely supplanted. The new organisms’ ability to muscle out the old riff-raff should theoretically allow the new bacteria to reside indefinitely once it is established in the mouth-so it is possible that a single treatment will last for an individual’s lifetime.
E. On the surface it seems like an graceful solution, but clearly there is the potential to upset delicate systems in nature, resulting in possible larger-scale side effects. If S.mutans is present in the ecosystem outside of mouths, there is a chance that the artificial strains might be accidentally introduced into those systems, possibly destroying the natural strains. The acidity in those environments might then be drastically reduced, resulting in unpredictable and irreversible changes. This is a risk shared with many genetically modified …show more content…
Which paragraph contains the following information?
1. No side-effects are observed for the replacement therapy.
2. There is risk of destruction of natural bacterial strains.
3. A new treatment has been found out to stop tooth decay.
4. Excretion of lactic acid is the cause of tooth decay.
5. A single treatment is hoped to prevent tooth decay for life time.
6. There is fear of development of complexities in the environment in the future.
7. Cavities would become a thing of the past.
Questions 8-13
Complete the summary below. Choose no more than two words from the passage for each answer:
Streptococcus mutans …………………(8)………….sugars. A new variety of bacteria has been produced which excrete……………(9)…………. The new strain will …….(10)…….. the unmodified S.mutans in the mouth. There is risk of………(11)……… of natural strains in the environment. According to researchers the recombinant strain of bacteria will not able to ………(12)………. In the outer environment. The elimination of activities will…..(13)……… the quality of