All of the following are part of the role of a microbiologist except:

• A. Diagnosing and treating human psychological disorders
• B. Investigating the impact of microbes on the environment
• C. Studying the structure and function of microorganisms
• D. Developing methods to control microbial growth

Answer: (A)

Verified step by step guidance

1. Step 1: Understand the primary roles of a microbiologist, which typically include studying microorganisms, their structure, function, and impact on environments, as well as developing methods to control microbial growth.
2. Step 2: Review each option to determine if it aligns with the scientific study and application of microbiology.
3. Step 3: Recognize that diagnosing and treating human psychological disorders falls under the field of psychology or psychiatry, not microbiology.
4. Step 4: Confirm that investigating the impact of microbes on the environment, studying microorganisms, and developing methods to control microbial growth are all core microbiological activities.
5. Step 5: Conclude that the option related to psychological disorders is the exception and not part of a microbiologist's role.