Question

3. Ответьте на вопросы: :
1. What does a mouth provide a home for?
2. Are all bacteria harmless?
3. What groups of bacteria do you know?
4. How are bacteria subdivided?
5. What are bacilli and where are they found?
6. How do streptococci grow?
7. What do they initiate?
8. What bacteria are called staphylococci?
9. What can be found in acute necrotizing ulcerative gi
10. Can spores survive extremes of temperature?​

Answer 1

Ответ:

1. tongue/bacteria 2. no 3.  spherical (cocci), rod (bacilli), spiral (spirilla), comma (vibrios) or corkscrew (spirochaetes). 4. Bacteria are classified into five groups according to their basic shapes. 5. Bacillus, (genus Bacillus), any of a genus of rod-shaped, gram-positive, aerobic or (under some conditions) anaerobic bacteria widely found in soil and water. 6. these bacteria grow in pairs or chains. 7 In addition to streptococcal pharyngitis (strep throat), certain Streptococcus species are responsible for many cases of pink eye,[9] meningitis, bacterial pneumonia, endocarditis, erysipelas, and necrotizing fasciitis (the 'flesh-eating' bacterial infections). However, many streptococcal species are not pathogenic, and form part of the commensal human microbiota of the mouth, skin, intestine, and upper respiratory tract. Streptococci are also a necessary ingredient in producing Emmentaler ("Swiss") cheese. 8. Staphylococcus is a genus of Gram-positive bacteria in the family Staphylococcaceae from the order Bacillales. 9. The often severe gum pain that characterizes ANUG distinguishes it from the more common chronic periodontitis which is rarely painful. If ANUG is improperly treated or neglected, it may become chronic and/or recurrent. The causative organisms are mostly anaerobic bacteria, particularly Fusobacteria and spirochete species. 10. Some bacteria produce a special type of spore called an endospore, which can withstand such extremes as boiling and freezing temperatures, and ultraviolet radiation. These bacterial endospores often endure many years of hardship before they find the growth conditions necessary for germination.

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