Which organism is a spirochete?

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Study for the VTNE Laboratory Procedures Test. Use flashcards and multiple choice questions, each question offers hints and explanations, enabling increased understanding and retention. Prepare effectively for your exam!

Multiple Choice

Which organism is a spirochete?

Explanation:
Spirochetes are slender, spiral-shaped bacteria that move with axial filaments located between their membranes, producing a distinctive corkscrew motion. Among the organisms listed, Leptospira grippotyphosa fits that description with its helical, thread-like shape. The others are not spiral-shaped: Corynebacterium pyogenes is a Gram-positive rod, Streptococcus pyogenes is a Gram-positive cocci arranged in chains, and Mycobacterium tuberculosis is an acid-fast rod with a waxy cell wall. Therefore, Leptospira grippotyphosa is the spirochete.

Spirochetes are slender, spiral-shaped bacteria that move with axial filaments located between their membranes, producing a distinctive corkscrew motion. Among the organisms listed, Leptospira grippotyphosa fits that description with its helical, thread-like shape. The others are not spiral-shaped: Corynebacterium pyogenes is a Gram-positive rod, Streptococcus pyogenes is a Gram-positive cocci arranged in chains, and Mycobacterium tuberculosis is an acid-fast rod with a waxy cell wall. Therefore, Leptospira grippotyphosa is the spirochete.

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