Bacterial Cell Structure Diagram - Educational Illustration #3520620 (License: Personal Use)

This black-and-white line illustration depicts a classic rod-shaped (bacillus) bacterium, complete with external flagella for motility and an internal nucleoid region representing the circular DNA. The drawing emphasizes fundamental prokaryotic anatomy without complex organelles, making it suitable for introductory biology contexts. Its clean, minimalist style supports easy labeling and classroom use.

Commonly used in educational websites, textbooks, and science presentations to explain basic bacterial morphology and cellular organization; matches user intent for learning or teaching microbiology fundamentals.