QUESTIONS AND DETAILED SOLUTIONS
◉ spore. Answer: Bacillus anthracis (spore or non spore)
◉ spore (a). Answer: Bacillus cereus (spore or non spore)
◉ spore (b). Answer: Clostridium tetani (spore or non spore)
◉ spore (c). Answer: Clostridium botulinum (spore or non spore)
◉ spore (d). Answer: Clostridium perfringens (spore or non spore)
◉ spore (e). Answer: Clostridium difficile (spore or non spore)
◉ non spore. Answer: Listeria monocytogenes (spore or non spore)
◉ non spore (a). Answer: Corynebacterium diphtheriae (spore or non
spore)
◉ pos. Answer: Bacillus cereus (gram: pos or neg)
◉ pos (a). Answer: Bacillus anthracis (gram: pos or neg)
◉ pos (b). Answer: Clostridium tetani (gram: pos or neg)
,◉ pos (c). Answer: Clostridium botulinum (gram: pos or neg)
◉ pos (d). Answer: Clostridium perfringens (gram: pos or neg)
◉ pos (e). Answer: Clostridium difficile (gram: pos or neg)
◉ pos (f). Answer: Listeria monocytogenes (gram: pos or neg)
◉ pos (g). Answer: Corynebacterium diphtheriae (gram: pos or neg)
◉ neg. Answer: Salmonellae (gram: pos or neg)
◉ neg (a). Answer: Shigellae (gram: pos or neg)
◉ neg (b). Answer: Escherichia Coli (gram: pos or neg)
◉ neg (c). Answer: Cronobacter (gram: pos or neg)
◉ neg (d). Answer: Vibrio cholera (gram: pos or neg)
◉ neg (e). Answer: Campylobacter (gram: pos or neg)
◉ neg (f). Answer: Pseudomonas (gram: pos or neg)
◉ neg (g). Answer: Haemophilus Influenzae (gram: pos or neg)
, ◉ neg (h). Answer: Legionella (gram: pos or neg)
◉ neg (i). Answer: Helicobacter pylori (gram: pos or neg)
◉ neg (j). Answer: Bordetella pertussis (gram: pos or neg)
◉ Clostridium. Answer: spp. spore forming + anaerobic
◉ Bacillus. Answer: spp. spore forming + aerobic
◉ Bacillus anthracis. Answer: only bacteria w/ capsule made of
protein
◉ Bacillus anthracis (a). Answer: causes disease anthrax
◉ Bacillus anthracis (b). Answer: used for biological
terrorism/warfare
◉ Bacillus anthracis (c). Answer: virulence factors on plasmids (both
PXO1 + PXO2 needed)
◉ Bacillus anthracis (d). Answer: stable (resistant to drying, heat, UV,
disinfectants)
◉ PXO1. Answer: this plasmid encodes the exotoxin from 3 different
proteins