MBI 111 Exam 1: Chapter 13 Review (1) || A Verified A+ Pass.
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Module
MBI 111
Institution
MBI 111
An Infectious Dose correct answers the minimum number of microbial cells required to cause an infection
Intoxication correct answers poisoning that results from the introduction of a toxin into body tissue through ingestion or infection
Respiratory Pathogens can exit the body most effectively...
MBI 111 Exam 1: Chapter 13 Review (1) || A Verified A+
Pass.
An Infectious Dose correct answers the minimum number of microbial cells required to cause an
infection
Intoxication correct answers poisoning that results from the introduction of a toxin into body
tissue through ingestion or infection
Respiratory Pathogens can exit the body most effectively by correct answers sneezing and
coughing
Exotoxins correct answers -proteins that bind to specific receptors on their target cells
*have effects on a specific cell type*
effect host cells by:
-causing lysis of cell
-disrupting intracellular function
-damaging the cell membrane
-toxin that is secreted and acts upon a specific cellular target
ex: Hemolysin and Streptolysin
Endotoxins correct answers -a bacterial infection that is not ordinarily released but instead is an
integral part of gram-negative cell walls
have systematic effects such as:
-fever
-inflammation
-diarrhea
-shock
-hemorrhage
Exoenzyme correct answers an extracellular enzyme that may be involved in hydrolysis of
nutrient macromolecules or damage to the host tissue
ex: Hyaluronidase
-Keratinase
-Mucinase
-Inflict damage to tissue
-dissolve the host defense warriors
True or False: A disease that is transmitted by sexual or intimate contact is referred to as
nosocomial disease correct answers False
In most cases, pathogens leave the body through: correct answers -secretion
-sloughing
-excretion
, -discharge
Septicemia correct answers a systematic infection associated with microorganisms multiplying in
circulating blood
Chronic Infection correct answers characterized as an infection that progresses and persists over
a long period of time
Which are considered true pathogens correct answers -plasmodium protozoan
-mycobacterium tuberculosis
-influenza virus
Plasmodium Protozoan correct answers a true pathogenic protozoan that causes malaria
Mycobacterium Tuberculosis correct answers a true pathogenic bacterium that causes
tuberculosis
Influenza Virus correct answers a true pathogen that causes the flu
Toxin correct answers a product of an organism that is poisonous to other organisms
The suffix (-osis) means correct answers disease
The portal of entry for the largest number of pathogens is the: correct answers respiratory tract
Which two factors determine the virulence of a particular pathogen? correct answers -its ability
to establish itself the host
-the ability to cause damage to the host tissue
LPS is found on the outer-membrane of correct answers gram-negative cells
Fimbriae correct answers the short appendages on some pathogenic bacteria that provides
adhesion to host cells
Leukocytosis correct answers an abnormally large number of white blood cells in the blood
Virulence correct answers relative capacity of a pathogen to invade and harm the host cells or the
degree of pathogenicity of a microbe
Leukopenia correct answers a lower-than-normal white blood cell count in the blood
Virulence Factor correct answers -determine the degree of tissue damaging that occurs
-microbial adaptations used to invade and establish the host
-a characteristic or structure of a pathogen that allows it to establish itself in a host or cause
damage to the host
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