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Which of the following media are used to determine motility and growth patterns of bacteria?

A) Blood agar
B) MacConkey agar
C) Motility agar
D) Mannitol salt agar

User Jiyeon
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Final answer:

Motility agar and Mannitol salt agar are used to determine motility and growth patterns of bacteria.

Step-by-step explanation:

The media that are used to determine motility and growth patterns of bacteria are Motility agar and Mannitol salt agar.

Motility agar is a semisolid agar that can evaluate if bacteria are motile or nonmotile.

If bacteria are motile, they will be able to move through the semisolid agar and won't form a distinct line in the agar, but rather cloudiness surrounding the stab line.

Mannitol salt agar is a selective medium that can determine if bacteria ferment mannitol or not.

It contains a high concentration of salt that inhibits the growth of susceptible bacteria and mannitol as a fermentable substrate.

A color change from red to yellow indicates mannitol fermentation.

User JoGusto
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