Chapter 9 Keywords

Question 1

undesirable effects of drugs on host cells

Answer 1

Side effects

Question 2

drug level at which drug becomes too

toxic for patient

Answer 2

toxic dose

Question 3

kills microbes

Answer 3

cidal

Question 4

drug level required for clinical treatment

Answer 4

therapeutic dose

Question 5

A microbial product or its derivative that
kills susceptible microorganisms or
inhibits their growth

Answer 5

antibiotic

Question 6

Chemotherapeutic agents that are
effective against many different kinds of
pathogens

Answer 6

broad spectrum drugs

Question 7

The ratio between the toxic dose and
the therapeutic dose of a drug, used as a
measure of the drug’s relative safety.

Answer 7

therapeutic index

Question 8

Compounds used in the treatment of 
 disease that destroy pathogens or inhibit 
 their growth at concentrations low 
 enough to avoid doing undesirable 
 damage to the host.

Answer 8

chemotherapeutic agent

Question 9

Inhibiting or retarding the bacterial

growth

Answer 9

static

Question 10

The ability of a chemotherapeutic agent
to kill or inhibit a microbial pathogen
while damaging the host as little as
possible. (

Answer 10

selective toxicity

Question 11

Chemotherapeutic agents that are
effective only against a limited variety of
microorganisms.

Answer 11

narrow spectrum drugs