Site MapHelpFeedbackMultiple Choice
Multiple Choice
(See related pages)



1

Diseases can be caused by __________.
A)bacteria
B)fungi
C)protozoans
D)viruses
E)All of the above are correct.
2

Food additives such as vitamins and citric acid are produced by what process?
A)bacterial fermentation
B)commercial synthesis
C)fungal by-products
D)yeast fermentation
3

There are thousands of microflora that live in our bodies. How do they benefit us?
A)assist disease-causing microbes
B)cause infectious organisms to grow and reproduce
C)help us digest otherwise indigestible materials
D)rid our bodies of vitamins and minerals
4

Microbes that are new pathogens can cause emerging diseases by which of the following mechanisms?
A)antibiotic resistance
B)lowering of tissue pH
C)production of toxins
D)Both a and c are correct.
5

Which of the following disease categories would affect the most people?
A)an endemic disease
B)an epidemic outbreak
C)a pandemic disease
D)a sporadic occurrence
6

A host cell is critical to viral replication because the host cell
A)allows for budding of the virus.
B)enzymes make copies of the viral DNA.
C)gives the virus a place to attach.
D)proteins are made by the virus.
7

You are most likely to get the flu after you have become immune because of
A)antigenic drift.
B)antigenic shift in the genome.
C)lowered resistance due to a similar cold virus.
D)structural changes in the viral surface.
8

The types of influenza viruses of Southeast Asia form the basis for development of the specific flu vaccine given in the United States because
A)killer pandemics always begin in Southeast Asia.
B)the flu strains occurring in Southeast Asia often move to the United States in the next winter season.
C)the genomes of humans and animals mix in Southeast Asia.
D)the people are farmers.
9

Genital herpes infections caused by HSV-2 are very serious because
A)infected women cannot become pregnant.
B)these infections are often fatal to newborns.
C)they cause reoccurring cold sores.
D)they pass right through a latex condom.
10

Which of the following is NOT true about the herpes virus, varizella-zoster?
A)It can remain latent for long periods of time.
B)It causes chickenpox in children.
C)It causes cold sores in people of all ages.
D)It causes shingles in adults.
11

Measles outbreaks sometimes occur on college campuses and spread quickly because the
A)vaccination given in infancy did not take or was given too early.
B)virus is airborne and spreads quickly in crowded conditions such as dormitories.
C)virus lives for long periods of time outside of the body on furniture.
D)Both a and b are correct.
12

Cold viruses reside in the nasopharynx region because
A)in the nose they can fend off other competing pathogens.
B)it is warm and moist.
C)that is the first place they encounter a host organism.
D)they prefer environments slightly cooler than body temperature.
13

Prions are proteins, yet they cause diseases. Which of the following diseases are caused by prions?
A)common cold
B)leprosy
C)mad cow disease
D)shingles
14

Which of the following are similar in bacteria and human cells?
A)ability to cause infection
B)cell size
C)DNA structure
D)None of the above are similar in bacteria and human cells.
15

Which part of the bacterial cell is sensitive to the Gram stain?
A)cell membrane
B)cell wall
C)cytoplasm
D)nuclear DNA
16

Which genus of bacteria causes the greatest variety of human diseases?
A)Clostridium botulinum
B)E. coli
C)M. tuberculosis
D)Streptococcus
17

Which of the following diseases is a leading cause of heart disease worldwide?
A)meningitis
B)rheumatic fever
C)scarlet fever
D)strep throat
18

Tuberculosis affects which organ of the body?
A)heart
B)kidneys
C)lungs
D)skin
19

Which of the following groups will show greatest resistance to Mycobacterium tuberculosis?
A)college students
B)elderly
C)indigent populations
D)infants
20

Food poisoning is caused by which of the following organisms?
A)Clostridium
B)Salmonella
C)Staphylococcus
D)All of the above cause food poisoning.
21

One might know in advance that food is contaminated with Clostridium botulinum because __________.
A)people who eat the food will develop tetanus
B)the can will bulge
C)the can will smell due to the gas produced
D)there will be spores on the surface
22

Fungi, including yeasts and molds, are responsible for all of the following diseases except one. Which disease is not caused by a fungus?
A)athlete's foot
B)oral thrush
C)ring worm
D)typhus
23

Candida albicans is a normal part of most people's microflora. However, candidiasis is observed when this normal balance is disrupted by which of the following conditions?
A)antibiotic treatment
B)immunodeficiency diseases
C)immunosuppressive drugs
D)All of the above can disrupt the normal microflora.
24

Which of the following organisms transmit malaria?
A)dead animals
B)flies
C)mosquitoes
D)All of the above can transmit malaria.
25

Which of the following is the correct sequence of the life cycle of the Plasmodium?
A)enters human by mosquito bite ? sexual reproduction of the protozoan in the human ? liver ? damage to red blood cells
B)sexual reproduction in the human liver ? transmitted to another human by the mosquito ? enters the red blood cells which are then destroyed
C)sexual reproduction in the mosquito ? moves to human salivary glands through sting ? rapid reproduction in the salivary glands ? destruction of the liver cells
D)sexual reproduction in the mosquito ? move to mosquito salivary glands ? enters human ? damages liver and red blood cells
26

If you were camping, which of the following methods would rid water you collected from a stream of both Giardia and Cryptosporidium?
A)boiling
B)clearing with chlorine tablets
C)filtering through sand
D)None of the above methods work, there is currently no way to cleanse the water of these organisms.
27

Giardia infections are rampant in day-care centers because the cysts are found in ________.
A)human feces
B)the bird feeder
C)the drinking fountain water
D)untreated baby food
28

Which of the following are parasitic helminthes in humans?
A)Ascaris lumbricoides
B)Schistosoma
C)all flat worms and round worms
D)Only a and b are correct.
29

Why does poor sanitation lead to widespread parasitic flat worm and round worm infections?
A)Adult worms swim in surface waters.
B)Coughing and other respiratory ailments spread the infection.
C)Intermediate host organisms only live in unclean water.
D)Round worm and flat worm eggs are carried in human feces.
30

Which parasitic organism causes common ringworm of the scalp in humans?
A)flatworms
B)fungi
C)protozoans
D)round worms
31

Viruses are incapable of independent reproduction and thus are called _______ parasites.
A)facultative anaerobic
B)obligate intracellular
C)temporary external
D)permanent genetic
32

After a virus penetrates a host cell, what is the next step in viral infection of the cell?
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





To learn more about the book this website supports, please visit its Information Center.
(c)2004 McGraw-Hill Higher Education
Any use is subject to the Terms of Use and Privacy Policy.
McGraw-Hill Higher Education is one of the many fine businesses of The McGraw-Hill Companies.


Human BiologyOnline Learning Center

Home > Chapter 21 > Multiple Choice Quiz