Reference no: EM133224500
Assignment:
1. First response to an tissue injury is fever
a. True
b. False
2. Basophils are not leukocytes.
a. True
b. False
3. Fever inhibits bacterial growth and causes complement systems' activation
a. True
b. False
4. Neutrophils are first at the site of infection.
a. True
b. False
5. Stomach is the site of residence of normal microbiota
a. True
b. False
6. Neutrophils are effector cells
a. True
b. False
7. Saliva contains transferrin
a. True
b. False
8. Macrophages are first cells at infection site.
a. True
b. False
9. Phagocyte digest and remove the debris by extrusion.
a. True
b. False
10. Macrophages and neutrophils both circulate in blood.
a. True
b. False
11.) Your friend Jim is asking if it is more difficult to treat disease caused by eukaryotes than caused by prokaryotes.
a.) Eukaryotes often make enzyme that breakdown drugs we use. It is therefore much harder to eliminate them.
b.) Bacteria are smaller simpler, and easier to kill.
c.) Eukaryote may use same enzymes as humans; it is hard to target structures that might be present only in cells we want to eliminate.
d.) Multi-celled organisms have immune systems, and they will protect them.
12.) Dr. Rice and his team are investigating how to prevent growth of Archaea. They think that penicillin would work and stop the growth. What do you think would happen if they used this antibiotic?
a.) penicillin will be effective against Archaea cell wall, killing them
b.) penicillin will promote growth of Archaea and will be used as food.
c.) penicillin slows growth of archaea and damages the cell wall.
d.) penicillin will not work against Archaea. They do not have peptidoglycan in their cell walls.
13.) The arsenic compound that proved highly effective in treating syphilis was called
a.) streptomycin
b.) penicillin
c.) tetracycline
d.) prontosil
e.) salvarsan
14. Which method would be best for sterilizing heat sensitive liquids like sucrose?
a.) pasteurization
b.) boiling
c.) autoclave
d.) dry heat
e.) filtration
15.. Heat kill microorganism by
a.) dissolving plasma membranes
b.) denaturing proteins
c.) dissolving carbohydrates in cell wall
d.) dissolving capsules
e.) denaturing nucleic acids
16. Beta-lactamase
a.) destroy beta-lactam ring
b.) is an enzyme
c.) limits effectiveness of penicillin drugs
d.) is produced by certain antibiotic-resistant bacteria
e.) all of the above
17. Which is not part of pathway for complement?
a.) mannin attaches to lectin to activate complement
b.) C3b binds to foreign antigen
c.) foreign antigen attaches to an antibody forming a complex
d.) C3a binds to an antibody to activate complement
e.) all of the answers are correct
18.. Dry heat could be used to sterilize all EXCEPT
a.) scalpels
b.) powder
c.) inoculating loops
d.) plastics
e.) oil
19.) In 1941 ________ purified penicillin from Penicillium notatum
a.) Gerhard Domgk
b.) Alexander Fleming
c.) Ernst Florey and howard Chain
d.) Paul Ehrlich
e.) Selman Walksman
20.)A high number of eosinophils may indicate:
a.) a viral infection
b.) a worm infection
c.) allergies
d.) a. bacterial infection
e.) both b and c are correct
21. Gerhard Domagk found that a dye had antimicrobial properties when it was split by blood enzymes into
a.) Penicillin
b.) Sulfanilamide
c.) Erythromycin
d.) Salvarsan
e.) Streptomycin
22.) The first antimicrobial isolated from a bacterium was
a.) Prontosil
b.) Penicillin
c.) Streptomycin
d.) Salvarsan
e.) Ampicillin
23.) Adhesion molecules
a.) are found on endothelium of blood vessels to "grab" phagocytes as they flow by
b.) are involved in the recruitment of phagocytes to an area injury
c.) attach to integrins to allow cells to stick together
d.) all of the answers are correct
24.) Toll- like receptor can detect
a.) peptidoglycan
b.) lipopolysaccharide
c.) bacterial nucleotide sequences
d.) flagellin
e.) all of the above are correct
25.). Matching
______ Chlorine 1. a 60-80% solution of this can be used as an antiseptic or disinfectant
______ alcohol 2. often used in the treatment of pool water
______ phenol 3. cleaning of surface
26.). Match the definition to the best word choice.
______ filtration 1. removal of pathogen from heat sensitive solutions
______ pressurized steam. 2. powders are sterilized
______ hot oven 3. use to sterilize foods