Free Sexually Transmitted Diseases MCQs with Answers
21 Sexually Transmitted Diseases MCQs from Biology, each with the correct answer and a written explanation of why it is correct. Free and unlimited, with no account needed.
Sexually transmitted diseases result from bacterial, viral or other infections passed mainly through sexual contact, including gonorrhoea, syphilis, HIV infection, hepatitis B and genital herpes. Questions cover transmission, symptoms, complications, testing, prevention and treatment, while distinguishing infection from infertility or other non-infectious reproductive disorders.
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- A. a bacterium
- B. a virus
- C. a fungus
- D. a protozoan
Explanation: Neisseria gonorrhoeae is a diplococcus bacterium that infects the mucous membranes of the urinary and reproductive tracts, and because it…
Correct answer: a bacterium- A. Gonorrhoea
- B. Syphilis
- C. Genital herpes
- D. Candidiasis
Explanation: Syphilis is caused by the spiral bacterium Treponema pallidum, beginning as a painless ulcer, then a body wide rash, then a long latent…
Correct answer: Syphilis- A. Gonorrhoea
- B. Syphilis
- C. Chlamydia
- D. Genital herpes
Explanation: Genital herpes is caused by herpes simplex virus, and antibiotics act only on bacterial structures and pathways, so they are useless…
Correct answer: Genital herpes- A. taking an antibiotic after every possible exposure
- B. vaccination, since a vaccine exists for every such infection
- C. washing thoroughly after exposure
- D. avoiding contact with infected persons and using barrier protection
Explanation: Prevention works by stopping the exchange of infected body fluids, so avoiding contact with an infected person and using a barrier are…
Correct answer: avoiding contact with infected persons and using barrier protection- A. Syphilis
- B. Chlamydia
- C. Gonorrhea
- D. Genital herpes
Explanation: Treponema pallidum is the spiral bacterium, or spirochaete, that causes syphilis, a disease progressing through primary, secondary, latent…
Correct answer: Syphilis- A. Campylobacter
- B. Nitrobacter
- C. Azobacter
- D. Salmonella
Explanation: Defrosting meat can release contaminated fluid, and Salmonella may be present and spread to other foods or surfaces.
Correct answer: Salmonella- A. Gonorrhea
- B. Syphilis
- C. AIDS
- D. Measles
Explanation: Measles is an acute viral respiratory illness. It is characterized by a prodrome of fever (as high as 105°F) and malaise, cough, coryza…
Correct answer: Measles- A. Syphilis
- B. Measles
- C. Polio
- D. Tetanus
Explanation: Syphilis is considered a sexually transmitted disease (STD) because it is primarily spread through sexual contact, including vaginal…
Correct answer: Syphilis- A. Gram + bacteria
- B. Gram - bacteria
- C. Chalko Virus
- D. Treponema palladium
Explanation: Gonorrhoea is caused by Neisseria gonorrhoeae, a Gram-negative diplococcus that commonly infects the mucous membranes of the reproductive…
Correct answer: Gram - bacteria- A. Syphilis
- B. Gonorrhea
- C. Genital herpes
- D. Both A and C
- E. None of the above
Explanation: Explanation for this question will be added soon.
Correct answer: Gonorrhea- A. Hepatitis A
- B. Hepatitis B
- C. Hepatitis C
- D. Hepatitis D
Explanation: Hepatitis B (HBV) is the second major form of hepatitis. It is caused by a DNA virus that is very common in Asia, China, the Philippines…
Correct answer: Hepatitis B- A. Pox virus
- B. Influenza virus
- C. Herpes virus
- D. Flu virus
Explanation: Herpes is an infection that is caused by a herpes simplex virus (HSV). Oral herpes causes cold sores around the mouth or face.
Correct answer: Herpes virus- A. HSV-1
- B. HSV-2
- C. Both A and B
- D. None of these
Explanation: Genital herpes is an STD caused by herpes simplex virus type 2 (HSV-2). So, option B is correct.
Correct answer: HSV-2- A. HSV-1
- B. HSV-2
- C. Both A and B
- D. None of these
Explanation: Genital herpes is a common sexually transmitted infection caused by the herpes simplex virus (HSV-2).
Correct answer: HSV-2- A. Genital herpes
- B. Gonorrhea
- C. AIDS
- D. Syphilis
Explanation: Explanation:Gonorrhea is a bacterial infection caused by the bacterium Neisseria gonorrhea.
Correct answer: Gonorrhea- A. Abdominal Pain
- B. Vesicular lesions in the epithelial layer
- C. Fever
- D. Failure of immune system
Explanation: Explanation:This is a common symptom of herpes simplex, which presents as painful, fluid-filled blisters or vesicles on or around the…
Correct answer: Vesicular lesions in the epithelial layer- A. Blood transfusion
- B. Blood clotting
- C. Absence of fibrinogen
- D. Contaminated soil
Explanation: Hepatitis B is a potentially life-threatening liver infection caused by the hepatitis B virus (HBV). It is a major global health problem.
Correct answer: Blood transfusion- A. Oro-fecal Route
- B. Unsafe Sex
- C. Vector Borne
- D. Droplet Infection
Explanation: Gonorrhea is a sexually transmitted disease that is introduced into the body through sexual contact, usually through genitals and oral…
Correct answer: Unsafe Sex- A. Hair
- B. Heart
- C. Peripheral Nervous System
- D. Birth canal
Explanation: Syphilis, at its late stages, is known to cause cardiovascular diseases which involve the enlargement of the heart such that the aorta can…
Correct answer: Heart- A. Bacteria
- B. Virus
- C. Parasite
- D. None of the above
Explanation: Gonorrhea is a sexually transmitted infection caused by the gram-negative bacterium Neisseria gonorrhoeae.
Correct answer: BacteriaSexually Transmitted Diseases MCQs: common questions
Are these Sexually Transmitted Diseases MCQs free?
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How many Sexually Transmitted Diseases MCQs are on this page?
There are 21 Sexually Transmitted Diseases MCQs in the Biology bank, shown 20 to a page with the correct answer and an explanation on each.
Does every Sexually Transmitted Diseases MCQ have an explanation?
Yes. Each Sexually Transmitted Diseases question shows the correct option and a written explanation of why it is correct, so a wrong answer teaches you something rather than just being marked wrong.
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