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Column A

Actinomyces sp
Streptomyces sp
Nocardia sp
Mycobaterium sp

Column B
1. ____ Acid-fast
2. ____ Anaerobic
3. ____ Earthly odor
4. ____ Conidia
5. ____ Molar tooth appearance on agar

User Shinji
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1 Answer

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Final answer:

The properties of acid-fast, anaerobic, earthly odor, conidia, and molar tooth appearance on agar are matched with Mycobacterium sp, Actinomyces sp, and Streptomyces sp respectively. These characteristics help in the identification of these bacterial species.

Step-by-step explanation:

The question asks to match certain characteristics to the correct species of bacteria found in Column A (Actinomyces sp, Streptomyces sp, Nocardia sp, Mycobacterium sp) with the descriptions in Column B (acid-fast, anaerobic, earthly odor, conidia, molar tooth appearance on agar).

  • Acid-fast: This characteristic is associated with the genus Mycobacterium. An example would be Mycobacterium tuberculosis, which is acid-fast due to the presence of mycolic acid in its cell wall.
  • Anaerobic: Actinomyces sp are known for being anaerobic, meaning they do not require oxygen for growth.
  • Earthly odor: Streptomyces sp are recognized by the distinct odor they produce, which is often described as earthy or soil-like.
  • Conidia: Streptomyces sp also produce spores known as conidia, which are involved in reproduction and dispersion.
  • Molar tooth appearance on agar: This refers to the colony morphology typically seen with Actinomyces sp, which may resemble the shape of a molar tooth.

The descriptions match the bacteria in Column A as follows:
Mycobacterium sp is acid-fast (1), Actinomyces sp is anaerobic (2), Streptomyces sp is noted for an earthly odor (3) and production of conidia (4), and Actinomyces sp also exhibits a molar tooth appearance on agar (5).

User Sayan Dey
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