Question

Which of the following statements is true about Trichomonas vaginalis?

• A. It cannot be cultured
• B. Twitching motility is seen on wet saline mount
• C. Cysts are seen on wet saline mount of vaginal secretions
• D. It is not a sexually transmitted infection

Answer 1

The Correct Option is B

In microbiology, understanding the characteristics of Trichomonas vaginalis is essential. Let's examine each statement to identify the truth about this protozoan:

• It cannot be cultured: This statement is incorrect. Trichomonas vaginalis can indeed be cultured in appropriate media, although it requires specific conditions for successful growth.
• Twitching motility is seen on wet saline mount: This statement is true. When a wet saline mount is observed under a microscope, Trichomonas vaginalis exhibits a characteristic twitching motility due to the movement of its flagella.
• Cysts are seen on wet saline mount of vaginal secretions: This statement is incorrect. Trichomonas vaginalis does not form cysts; it exists only in a trophozoite form, which is visible on a wet saline mount but without cysts.
• It is not a sexually transmitted infection: This statement is false. Trichomonas vaginalis is, in fact, a sexually transmitted infection, primarily spread through sexual contact.

Therefore, the correct statement about Trichomonas vaginalis is that "Twitching motility is seen on wet saline mount."