8. Salmonellois is caused by the
A.enterotoxin of Salmonella spp
B.endotoxin of Salmonella spp
C.neurotoxin of Salmonella spp
D.exoenterotoxin of Salmonella spp
9. Group I C. botulinum strains generally includes in
A.all types of strains (proteolytic)A, B and F
B.all types of strains (non-proteolytic) E and F
C.all types of strains (proteolytic)C, D and F
D.none of the above
10. The application of Gamma rays destroys botulism toxin. The dose of gamma rays required for this purpose is
A.73 Gy
B.73 Rad
C.7.3 Mrad
D.173 Rad
11. Arrange the potencies of toxin in descending order of the following canned foods
A.peas>string beans>spinach> corn
B.corn> string bean>peas>spinach
C.corn> spinach> peas>string beans
D.corn> peas>string beans>spinach
12. The milk streptococci produce acetoin that gets spontaneously oxidized yielding a flavorings agent (responsible for aroma of butter) that is
A.acetone
B.acetyl coA
C.butyric acid
D.diacetyl
13. The botulism intoxication occurs due to
A.an enterotoxin
B.neurotoxin
C.mycotoxin
D.all of these
14. The Bacillus cereus causes gasteroenteritis by the production of an exoenterotoxin which is released in food as a result of
A.cell growth
B.cell autolysis
C.cell permeation
D.cell damage
Page 2 of 3