Question

multiple choice question a drug that is produced naturally by an organism and then chemically modified in the laboratory is called a(n) ______ drug. narrow - spectrum broad - spectrum semisynthetic synthetic antibiotic

Explanation:

To solve this, we analyze each option:

• Narrow - spectrum/broad - spectrum relate to the range of microbes an antibiotic targets, not the production method.
• Antibiotic is a general term for substances that inhibit microbial growth, not specific to production - modification.
• Synthetic drugs are made entirely in the lab.
• Semisynthetic drugs are naturally produced by an organism (like a microbe) and then chemically modified in the lab. This matches the description.

Answer:

C. semisynthetic (assuming the third option is labeled C; if the original labels are different, adjust the identifier, e.g., if it's the third circle, "the third option: semisynthetic")