Bacterial cells could have any of the following appendages except:

• A. Pili
• B. Cilia
• C. Fimbriae
• D. Flagella

Answer: (B)

Verified step by step guidance

1. Step 1: Understand the types of bacterial appendages. Bacterial cells commonly have structures such as pili, fimbriae, and flagella, which serve various functions like attachment, motility, and conjugation.
2. Step 2: Define each appendage: Pili are hair-like structures used for DNA transfer; fimbriae are shorter, bristle-like fibers used for attachment to surfaces; flagella are long, whip-like structures used for movement.
3. Step 3: Recognize that cilia are hair-like structures found on eukaryotic cells, not bacterial cells. They are involved in movement or moving substances along the cell surface in eukaryotes.
4. Step 4: Compare the options given and identify that cilia do not occur in bacteria, making them the exception among the listed appendages.
5. Step 5: Conclude that the correct answer is 'Cilia' because bacterial cells do not possess cilia as appendages.