questions with complete solutions
MBIO 3400
TTU MBIO 3400 CH 10 (exam 2)
questions with complete solutions
PC
,TTU MBIO 3400 CH 10 (exam 2)
questions with complete solutions
TTU MBIO 3400 CH 10 (exam 2)
questions with complete solutions
Drugs - correct answer ✔✔Chemicals that affect physiology in any manner.
ex; Caffeine, alcohol, tobacco.
Chemotherapeutic agents - correct answer ✔✔Drugs that act against diseases.
ex; insulin, anticancer drugs, antimicrobial agents.
Antimicrobial agents - correct answer ✔✔Drugs that treat infections.
Paul Ehrlich - correct answer ✔✔German scientist.
Proposed "chemotherapy", chemicals selectively kill pathogens having little/no
effect on patient.
"Magic bullets" arsenic compounds that would bind to receptors on germs and kill
them, ignoring the host cells because they lack receptor molecules.
Alexander Fleming - correct answer ✔✔British bacteriologist.
First person to discover and document antibiotics.
Antibacterial action of penicillin released from Penicillium mold, which creates
zone where bacteria don't grow.
, Gerhard Domagk - correct answer ✔✔German chemist.
Discovered sulfanilamide, the first practical antimicrobial agent that treated a
wide array of bacterial infections.
Selman Waksman - correct answer ✔✔Discovered other microorganisms that
have useful antimicrobials. Called them "antibiotics", antimicrobial agents that are
produced naturally by an organism.
Antibiotics current definition - correct answer ✔✔Antibacterial agent including
synthetic compounds, excluding agents with antiviral and antifungal activity.
Semisynthetic antimicrobials - correct answer ✔✔Chemically altered antibiotics
that are more effective, longer lasting, or easier to administer than naturally
occurring ones.
Most antimicrobials are either natural or semisynthetic.
Synthetic drugs - correct answer ✔✔Antimicrobials that are completely
synthesized in a lab.
Key to successful chemotherapy - correct answer ✔✔Selective toxicity
Selective toxicity - correct answer ✔✔An effective antimicrobial agent must be
more toxic to a pathogen than to the pathogen's host.
Possible because of differences in structure or metabolism between pathogen and
its host.