1-mucus in the mucus membrane is an example of the ? a- first b-second c-third l
ID: 62946 • Letter: 1
Question
1-mucus in the mucus membrane is an example of the ?
a- first
b-second
c-third line of defense
2-which of the following is not a first line of defense?
a- skin
b- tears
c- saliva or fever
3-what type of cell leaves the bloodstream and matures into a macrophage?
a- monocyte
b- lymphocyte
c-eosinophil
4- which blood cells scan for _____ on the surface of pathogenic microbes?
1- PRRs
2- PAMPs
3- PMNs
5-fixed macrophages that are found in the lung are called?
a-alveolar
b- lymphocyte
c-osinophil
6-during ingestion pesudopods of a phagocyte fuse surronding the microorganism in a (n)?
a-phagosome
b- granule
c- inclusion bod
d- histiocyte
7-interferons are produced by certain animal cells are after being infected by?
a-protozoa
b- bacteria
c- virses
8-when macrophages ingest microorganism they fuse with this organelle to destory the infectious agent?
a- chloroplast
b- lysosome o
c-endoplasmic reticlum
9-chemicals realsed by defensive cells that regulate intensity and duration of immune response are called ?
a-antibodies
b- cytokines
c-peroxides
10-which is not a benefit of fever?
a-reduce iron availability to pathogens
b- ill temp sensetive infectious agent
c- tachyecadia
Explanation / Answer
1.
The body defends against the foreign particles in two levels that include Non-specific defense mechanism and specific defense mechanism.
The non-specific defense mechanism is further classified into two levels as first line of defense (barriers) and second line of defense (internal defenses). The first line of defense includes skin, mucus membrane, tears, cilia, and gastric juice. Thus, mucus in the mucus membrane is an example of the first line of defense.
Hence, the correct option among the following is a.
2.
The first line of defense includes skin, mucus membrane, cilia, and gastric juice. The second line of defense include leukocytes, phagocytes, NK cells, complement proteins, interferons, fever etc. The immune cells induce the fever.
Hence, the correct option among the following is c.
3.
Macrophages are the type of white blood cells. Macrophages are formed by differentiation of monocytes in the tissues. Thus, the monocytes leave the blood stream and mature into macrophages.
Hence, the correct option among the following is a.
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