Multiple Choice

Please answer all questions


1	Sexually transmitted diseases are __________ (p. 339)
		A)	rare
		B)	a major worldwide health problem
		C)	caused only by bacteria
		D)	None of these is correct.


2	The pathogens that cause AIDS and genital herpes in humans are _____. (p. 340)
		A)	bacteria
		B)	fungi
		C)	viruses
		D)	protozoans


3	Viruses are incapable of independent reproduction and thus are called _______ parasites. (p. 340)
		A)	facultative anaerobic
		B)	obligate intracellular
		C)	temporary external
		D)	permanent genetic


4	After a virus penetrates a host cell, what is the next step in viral infection of the cell? (p. 340)
		A)	binding of the virus to the plasma membrane
		B)	removal of the capsid
		C)	replication of viral genetic material
		D)	production of viral proteins


5	Two types of human immunodeficiency viruses (HIV) are known to exist. What type of more common in the Unites States? (p. 342)
		A)	HIV-1
		B)	HIV-2
		C)	HIV-1C
		D)	HIV-3


6	During the first stage of HIV infection, the affected individual is a highly contagious ________ carrier. (p. 342)
		A)	infected
		B)	affected
		C)	asymptomatic
		D)	primary


7	Symptoms of the third (final) stage of HIV infection, known as AIDS, are ___________. (p. 342)
		A)	T lymphocyte count of less than 200 per mm3
		B)	at least one opportunistic infection
		C)	antibiotic resistance
		D)	Both A and B are correct.


8	Human papillomaviruses cause ______________. (p. 342)
		A)	genital warts
		B)	plantar warts
		C)	common warts
		D)	All of these are correct.


9	Human papilloma viruses (HPVs) are associated with ____________. (p. 342)
		A)	cancer of the cervix
		B)	skin cancer
		C)	lung cancer
		D)	none of the above


10	The age group that seems particularly susceptible to HPV infections is ______________. (p. 342)
		A)	students of college age
		B)	teenagers
		C)	middle-aged adults
		D)	senior citizens


11	Herpes viruses cause ____________. (p. 343)
		A)	chicken pox and mononucleosis
		B)	genital herpes
		C)	cold sores and fever blisters
		D)	All of these are correct.


12	Herpes simplex virus type 2 usually causes ________. (p. 343)
		A)	genital herpes
		B)	cold sores/fever blisters


13	Which statement is not true about genital herpes? (p. 344)
		A)	There may be no symptoms.
		B)	Genital herpes is a common sexually transmitted disease.
		C)	Sarcomas appear on the face, neck, and trunk.
		D)	Sunlight and stress seem to cause symptoms to recur.


14	What type of hepatitis is transmitted in the same manner as HIV and can lead to liver failure? (p. 344)
		A)	Hepatitis A
		B)	Hepatitis B
		C)	Hepatitis C
		D)	Hepatitis E


15	Bacteria are generally ______________. (p. 345)
		A)	smaller than viruses
		B)	able to reproduce without being inside a host cell
		C)	are prokaryotes
		D)	All of these are correct.


16	Chlamydia is caused by _______________. (p. 346)
		A)	a virus
		B)	a bacterium
		C)	a fungus


17	The bacterium Neisseria gonorrhoeae causes ________. (p. 348)
		A)	botulism
		B)	strep throat
		C)	gonorrhea
		D)	syphilis


18	Symptoms of gonorrhea include _____________. (p. 348)
		A)	painful urination
		B)	milky urethral discharge
		C)	Infected individuals may be asymptomatic.
		D)	All of these are correct.


19	Syphilis has ________ stages. (p. 349)
		A)	one
		B)	two
		C)	three
		D)	four


20	Vaginitis can be caused by _____________. (p. 351)
		A)	a virus
		B)	yeast
		C)	protozoan
		D)	both B and C


21	Pubic lice can ________. (p. 352)
		A)	be self-diagnosed and treated
		B)	be spread by contact with infected clothing or bedding
		C)	both A and B
		D)	neither A nor B

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