Question

Which of the following is classified as a Gram-negative bacterium that causes gonorrhoea?

Options

• Treponema pallidum

• Chlamydia trachomatis

• Neisseria gonorrhoeae

• Trichomonas vaginalis

Answer 1

Neisseria gonorrhoeae is a Gram-negative diplococcus (bacterium) that causes gonorrhoea. It is the only Gram-negative bacterial pathogen in the classification table. Treponema pallidum is a spirochaete, Chlamydia trachomatis is an intracellular bacterium, and Trichomonas vaginalis is a protozoan.