The following data were obtained by incubating gram-positive bacteria in nutrient medium + disinfectant for 24 hours, then transferring one loopful to nutrient medium (subculturing). (+ = growth; - = no growth. a. Table 7.3, which disinfectant is the most effective at stopping bacterial growth? How can you tell? b. In Table 7.3, which disinfectant was bactericidal? How can you tell? c. In Table 7.3, which disinfectant was most effective against Salmonella? How can you tell? [Hint: look up Salmonella] Table 7.3 K.O. Subculture Doom Dilution Initial Subculture Initial 1:16 1:32 1:64 1:128 Mortum Sterl Dilution Initial Subculture Initial Subculture 1:16 1:32 1:64 1:128
Bacterial Morphology
The bacteria are prokaryotic organisms that are single-celled, and are found to exist as free-living and possess a microscopic size. The morphology is found to vary in the bacteria, where some of them are identified as individual organisms and the others are detected as colonies. The size and shape of the bacterial cell also represent its morphology.
Bacterial cell structure
Bacteria are single-celled, tiny creatures that may enter healthy tissues and grow rapidly. Bacteria are microscopic organisms that are tiny and unicellular. These are members of the prokaryote kingdom. They live in water, air, soil, and all-natural environments. They are used in industrial and therapeutic processes, and they support a wide range of plant and animal life. The first organism to appear on the planet. Bacteria-like creatures are the oldest known fossils. Bacteria can consume a wide range of organic and inorganic elements, and some may even survive in harsh conditions.
![The following data were obtained by incubating gram-positive bacteria in nutrient medium +
disinfectant for 24 hours, then transferring one loopful to nutrient medium (subculturing). (+ =
growth; - = no growth.
a. Table 7.3, which disinfectant is the most effective at stopping bacterial growth?
How can you tell?
b. In Table 7.3, which disinfectant was bactericidal? How can you tell?
c. In Table 7.3, which disinfectant was most effective against Salmonella? How can
you tell? [Hint: look up Salmonella]
Table 7.3
K.O.
Subculture
Doom
Dilution
Initial
Subculture
Initial
1:16
1:32
1:64
1:128
Mortum
Sterl
Dilution
Initial
Subculture
Initial
Subculture
1:16
1:32
1:64
1:128](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Ffef84e59-b776-428f-8b5b-5745d06f71ad%2F49eef178-4aa4-4950-b1c4-760dc4f02884%2F4f25at_processed.png&w=3840&q=75)
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