Optimal Fermenter Conditions for Penicillin Production

Steps:

• Identify penicillin as an antibiotic produced by the fungus Penicillium chrysogenum.
• Recall that Penicillium requires oxygen for aerobic respiration to synthesize penicillin.
• Note essential nutrients: carbohydrates as carbon source and amino acids for nitrogen and growth.
• Match these to choice A, which includes all required elements.

Why A is correct:

• Penicillium produces penicillin via aerobic fermentation, using carbohydrates for energy and amino acids for biosynthesis, as defined in microbial biotechnology processes.

Why the others are wrong:

• B: Anaerobic conditions and yeast suit alcohol production, not penicillin; fats/proteins are unsuitable nutrients.
• C: Lacks aerobic conditions and Penicillium organism, making it incomplete.
• D: Identical to C, incomplete without specifying conditions and producer.

Final answer: A