Visualizing Human Biology

Kathleen Anne Ireland

Chapter 10

Infectious Disease and Epidemiology - all with Video Answers

Educators

Chapter Questions

Problem 1

A pandemic differs from an epidemic in that _____.
a. a pandemic causes disease in one group of people only
b. epidemics are worldwide, whereas pandemics are local
c. pandemics are worldwide, whereas epidemics are local
d. WHO involves itself only in epidemics

Joanna Quigley

Joanna Quigley

Numerade Educator

Problem 2

Epidemiologists use cohort studies to _____.
a. form hypotheses about the cause or treatment of a disease
b. shed light on the method of infection of a disease
c. estimate the likelihood of infection among certain groups of individuals
d. verify the diagnosis of the disease, define the symptoms, and collect data

Joanna Quigley

Numerade Educator

Problem 3

Clinics in impoverished rural settings, like the one in this photo, are often set up and run by _____.
a. the $\mathrm{CDC}$
b. WHO
c. local philanthropic medical practitioners
d. the Red Cross

Joanna Quigley

Numerade Educator

Problem 4

The only viral disease ever successfully eradicated from the globe through a WHO initiative is _____.
a. smallpox
b. polio
c. German measles
d. HIV

Joanna Quigley

Numerade Educator

Problem 5

The type of bacteria found in long chains of spherical organisms is _____.
a. staphylococcus
b. coccus
c. bacillus
d. streptococcus

Joanna Quigley

Numerade Educator

Problem 6

Bacteria are prokaryotes, meaning that _____.
a. they have ribosomes
b. their internal organization is similar to that of our own cells
c. their DNA is stored within a membrane-bound nucleus
d. they have only the cell membrane to carry out complex processes

Joanna Quigley

Numerade Educator

Problem 7

MRSA is particularly challenging to medical professionals because _____.
a. it is derived from a common bacterium normally found on our skin
b. it shows resistance to many of the common antibiotics in use today
c. it is found in many hospitals and emergency rooms
d. All of the above are true of MRSA.

Joanna Quigley

Numerade Educator

Problem 8

The organism shown here is the vector for _____.
a. the black plague
b. leprosy
c. TB
d. the West Nile virus

Joanna Quigley

Numerade Educator

Problem 9

Which of the following bacterial pathogens has WHO recently launched a program to eradicate?
a. leprosy
b. septicemic plague
c. tuberculosis
d. pneumonic plague

Joanna Quigley

Numerade Educator

Problem 10

The phase of the viral life cycle depicted below is the _____.
a. lytic phase
b. lysogenic phase
c. replication phase
d. dormant phase

Joanna Quigley

Numerade Educator

Problem 11

Viruses are controlled using antibiotics.
a. True
b. False

Joanna Quigley

Numerade Educator

Problem 12

Polio is a virus that _____.
a. is now endemic to only four countries
b. has spread from Nigeria to other countries
c. was found in 125 countries but has been reduced by a collaborative and global initiative
d. All of the above options are correct.

Joanna Quigley

Numerade Educator

Problem 13

The flu vaccine is constantly reviewed and reformulated because _____.
a. WHO has no idea which flu strain will cause the next epidemic
b. influenza B viruses are hard to isolate in the lab
c. the avian flu may some day mutate to an airborne form
d. influenza A viruses mutate quickly, necessitating new vaccines

Joanna Quigley

Numerade Educator

Problem 14

HIV attaches to the CD4 protein coat complex of the _____, obtaining entry to the cell, where it may lie dormant for many years.
a. cytotoxic $\mathrm{T}$ cell
b. helper $\mathrm{T}$ cell
c. B cell

Joanna Quigley

Numerade Educator

Problem 15

The pathogen shown here is a _____.
a. virus
b. protist
c. fungus
d. prion

Joanna Quigley

Numerade Educator