Questions: Which of the following media formats could be used to grow anaerobic microbes? broth agar deep plate slant

The answer is the second one: agar deep.

Explanation for each option:

1. Broth: While broth can be used to grow microbes, it is not ideal for anaerobic microbes unless specific measures are taken to create an anaerobic environment, such as using an anaerobic jar or chamber.

2. Agar deep: This is the correct answer. Agar deep tubes are used to grow anaerobic microbes because the deeper parts of the agar provide an environment with reduced oxygen levels, which is suitable for anaerobic growth.

3. Plate: Agar plates are typically exposed to air, making them unsuitable for growing anaerobic microbes unless special anaerobic conditions are created.

4. Slant: Agar slants are similar to plates in that they are exposed to air, making them less suitable for anaerobic microbes without additional anaerobic conditions.

In summary, agar deep is the most appropriate media format for growing anaerobic microbes due to its ability to provide an environment with reduced oxygen levels.