Key difference between bacterium and fungal cell

Steps:

• Identify "this" as likely a bacterial cell based on choices referring to "the bacterium."
• Recall bacteria are prokaryotes without a membrane-bound nucleus; fungi are eukaryotes with one.
• Compare options: seek prokaryotic vs. eukaryotic distinction.
• Select option stating absence of nucleus in bacterium.

Why C is correct:

• Prokaryotic cells like bacteria lack a true, membrane-bound nucleus, unlike eukaryotic fungal cells.

Why the others are wrong:

• A: Fungal cells also have cell walls (chitin-based).
• B: Both have cytoplasm as a basic cellular component.
• D: Bacteria do not have a true nucleus; this describes fungal cells.

Not enough information to confirm "this" is a bacterium, but assuming standard context.

Final answer: C