Bio 175 Exam 3 Questions with Complete
Solutions
Imagine a person that becomes sick with the flu, during their illness they develop an ear
infection. The ear infection is referred to as a secondary infection
Macrophages, neutrophils, and monocytes Phagocytosis
The chemical make up prevents the pathogen to thrive with the body. Gastric juices in the
stomach, lysozyme in tears, and sebum from sebaceous glands are examples. Chemical
barriers
Intact skin and mucous membranes keep most pathogens from the environment from entering the
body; first line of defense Mechanical barriers
Elevated body temperature to make leukocytes more active and vigorous and to conserve zinc
and iron from the pathogen Fever
, A natural response from the body to isolate a region that have been invaded by potential
pathogen until the pathogen are destroyed. Includes: injury, rubor, calor, tumor, and dolor
Inflammation
Microbes that do not permanently reside in the body; most are harmless and will be overcome
transient microbes
Microbes that will cause a disease or breakdown host immunity Opportunists microbes
Microbes that maintain a permanent residence in a particular part of the body; usually
commensalism or mutualism Resident microbes or normal flora
T/F One of the roles of a fever is to reduce the availability of minerals available for bacterial
growth True
T/F During phagocytic ingestion of a microbe, ATP used to change the shape of the cell
membrane in order to form a vacuole or phagosome around the microbe True
Solutions
Imagine a person that becomes sick with the flu, during their illness they develop an ear
infection. The ear infection is referred to as a secondary infection
Macrophages, neutrophils, and monocytes Phagocytosis
The chemical make up prevents the pathogen to thrive with the body. Gastric juices in the
stomach, lysozyme in tears, and sebum from sebaceous glands are examples. Chemical
barriers
Intact skin and mucous membranes keep most pathogens from the environment from entering the
body; first line of defense Mechanical barriers
Elevated body temperature to make leukocytes more active and vigorous and to conserve zinc
and iron from the pathogen Fever
, A natural response from the body to isolate a region that have been invaded by potential
pathogen until the pathogen are destroyed. Includes: injury, rubor, calor, tumor, and dolor
Inflammation
Microbes that do not permanently reside in the body; most are harmless and will be overcome
transient microbes
Microbes that will cause a disease or breakdown host immunity Opportunists microbes
Microbes that maintain a permanent residence in a particular part of the body; usually
commensalism or mutualism Resident microbes or normal flora
T/F One of the roles of a fever is to reduce the availability of minerals available for bacterial
growth True
T/F During phagocytic ingestion of a microbe, ATP used to change the shape of the cell
membrane in order to form a vacuole or phagosome around the microbe True
