Question

multiple choice question
the hundreds of thin, short hair - like projections extending from the bacterial cell are called ______.
options: cilia; flagella; pili; glycocalyx

Explanation:

To solve this, we analyze each option:

• Cilia: Usually in eukaryotic cells, not typical bacterial short projections.
• Flagella: Longer, fewer in number for bacterial movement.
• Pili: Thin, short, hair - like projections (fimbriae/pili) on bacteria, used for adhesion etc.
• Glycocalyx: A layer outside cell, not hair - like projections.

Answer:

C. pili