MCQs on Harmful Microorganisms
Q. Human immunodeficiency virus first destroys these cells
(a) leucocytes
(b) B-lymphocytes
(c) thrombocytes
(d) helper T-lymphocytes
Answer: : (d)
Q. The motile zygote of Plasmodium is found in
(a) human liver
(b) human RBCs
(c) salivary glands of female Anopheles
(d) the gut of female Anopheles
Answer: : (d)
Q. Infectious protein is a characteristic of
(a) satellite viruses
(b) viroids
(c) prions
(d) gemini viruses
Answer: : (c)
Q. Which of the following gets killed by lysozyme present in saliva and tears?
(a) some of the fungi
(b) virus-infected cells
(c) all viruses
(d) some of the bacteria
Answer: : (d)
Q. Clostridium botulinum is a
(a) facultative aerobe
(b) obligate anaerobe
(c) facultative anaerobe
(d) obligate aerobe
Answer: : (b)
Q. Our body synthesizes interferons in response to
(a) fungi
(b) bacteria
(c) virus
(d) mycoplasma
Answer: : (c)
Q. Salmonella causes
(a) tetanus
(b) T.B.
(c) polio
(d) typhoid
Answer: : (d)
Q. Which of the following pairs of diseases is caused by bacteria?
(a) Herpes and influenza
(b) Tetanus and mumps
(c) Typhoid and smallpox
(d) Cholera and tetanus
Answer: : (d)
Q. This disease is caused by a protozoan
(a) Influenza
(b) Syphilis
(c) Blastomycosis
(d) Babesiosis
Answer: : (d)
Q. The trophozoite of Entamoeba histolytica feed on
(a) only mucosa and submucosa of the colon
(b) erythrocytes, mucosa and submucosa of the colon
(c) only blood
(d) intestinal food
Answer: : (b)
