1) Is Bacillus subtilis bacteria gram positive or negative? 2) Is Bacillus subtilis capsule - or...
1) Is Bacillus subtilis bacteria gram positive or negative?
2) Is Bacillus subtilis capsule - or + ?
3) Does Bacillus subtilis has motile?
4) What is the morphology and arrangement of Bacillus subtilis?
Homework Answers
Bacillus subtilis is a gram positive ,catalase positive bacteria which is found in soil and human gastrotract,it's capsules are also positive ,it uses flagella for the movement thus it is very much motile.Bacilus subtilis are rod shaped , heterotrophic , facultative aerobic bacteria found in clumps or chains,they can stand in extreme environment conditions as they form a tough protective endospore
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1) Is Bacillus subtilis bacteria gram positive or
negative?
2) Is Bacillus subtilis capsule - or...
1. The Gram reaction; Gram Positive or Gram Negative 2. The shape of the cells; bacillus,...
1. The Gram reaction; Gram Positive or Gram Negative 2. The shape of the cells; bacillus, coccus, spiral 3. The typical arrangement of the cells; single, pairs, clusters, chains etc. Shape of cells Arrangement of cells Name of organism Gram Reaction Bacillus cereus Enterobacter aerogenes Enterococcus durans Escherichia coli Micrococcus luteus Senatra marcescens Staphylococcus epidermidis streptococcus Salivarius Klebsiella pmeumonia Salmonella entertidis Shigella Sonnei Staphylococcus aureus Streptococcus pyogenes *Hint: The organisms used in the Lab. are listed in the Safety Guidelines...
Please look at these two photos of an unknown gram positive and gram negative bacteria that...
Please look at these two photos of an unknown gram positive and
gram negative bacteria that were Gram stained. What is the
morphology/characteristics of these unknown bacteria?
AA
We were unable to transcribe this imageWe were unable to transcribe this image
One of the following bacteria is in a sample: Staphylococcus aureus, Citrobacter freundii, Bacillus subtilis, Proteus...
One of the following bacteria is in a sample: Staphylococcus aureus, Citrobacter freundii, Bacillus subtilis, Proteus vulgaris and Enterococcus faecium. After Gram staining and visualization of the sample by brightfield microscopy, the identification of the bacterium was narrowed to two possibilities. An indole test was performed on the bacterium and produced a negative indole test result. This was enough information to determine the identity of the microorganism. Which microorganism was in the sample? (2 pts)
6. Refer to Tables 13.2 and 13.3 and classify Escherichia coli, Bacillus subtilis and Enterobacter aerogenes...
6. Refer to Tables 13.2 and 13.3 and classify Escherichia coli, Bacillus subtilis and Enterobacter aerogenes as Gram-positive, Gram-negative, coliform or non-coliform a. E. coli- b. B. subtilis - C. E. aerogenes- 7. What is the role of eosin and methylene blue in EMB agar? 8. Why do fermenters produce dark colonies on EMB agar? 4 Page
Gram-positive and gram-negative bacteria differ in that A. Gram-positive bacteria have more peptidoglycan in their cell...
Gram-positive and gram-negative bacteria differ in that A. Gram-positive bacteria have more peptidoglycan in their cell walls. B. Gram-positive bacteria have fimbriae but gram-negative bacteria do not. C. Gram-positive bacteria are spiral-shaped, and gram-negative bacteria are either rod-shaped or spherical. D. Only gram-negative bacteria can form endospores. E. There is no difference between gram negative and gram positive bacteria F. Gram positive are positively charged and gram negative are negatively charges An unknown bacterial species was found in the blood...
MacConkey agar questions 4. Would this bacteria be a Gram positive or a Gram negative? How...
MacConkey agar questions 4. Would this bacteria be a Gram positive or a Gram negative? How do you know? 5. Does this bacteria ferment lactose? How do you know?
Describe the color of Gram positive and Gram negative bacteria in each step of the Gram...
Describe the color of Gram positive and Gram negative bacteria in each step of the Gram staining procedure. (Be sure to account for the procedure, the reagent, and the colors of Gram negative and Gram positive bacteria in your description.)
Name one media that will only allow Gram positive bacteria, but not Gram negative bacteria to...
Name one media that will only allow Gram positive bacteria, but not Gram negative bacteria to grow and describe how this media select for gram positive bacteria.
The cultures of a set of patients grow gram-negative, oxidase-positive, urease positive and H2S- positive bacteria....
The cultures of a set
of patients grow gram-negative, oxidase-positive, urease positive
and H2S- positive bacteria. Using the key bellow, what
is the causative agent of these infections?
Gram reaction? Oxidase? Morphology? Yes No Rods Cocci Urea hydrolyzed? Citrate utilized? Yes Erysipelothrix Staphylococcus rhusiopathiae aureus No Yes No Klebsiella Yersinia pneumoniae enterocolitica H S produced? Yes No Indole produced? Bordetella bronchiseptica Brucella ceti Acetoin produced? (V-P test) Mannheimia haemolytica Yes No Aeromonas hydrophila Pasteurella multocida
find the unknown bacteria based on this results? List of possible Bacteria • Selective Unknown Bacteria...
find the unknown bacteria based on this results?
List of possible Bacteria • Selective Unknown Bacteria # 4. and Differential Media results for 4 Test MSA PEA Gram (+) to Bacillus cereus (bacillus) do 2. Bacillus mepeterum (becillus) 3. bacillus subtilis (bacillus) Blood 1-Starch Results Interpretation Presumptive ID red frowth Orpinism does not ferment manitol. Nonpathogenic No reochrom (-) good growth oganism is not inhibitelje gram Phenylethyl alcohol complete olipeskon 14 red blood cells on o nomeync activity B hemolytic...
1. The Gram reaction; Gram Positive or Gram Negative 2. The shape of the cells; bacillus, coccus, spiral 3. The typical arrangement of the cells; single, pairs, clusters, chains etc. Shape of cells Arrangement of cells Name of organism Gram Reaction Bacillus cereus Enterobacter aerogenes Enterococcus durans Escherichia coli Micrococcus luteus Senatra marcescens Staphylococcus epidermidis streptococcus Salivarius Klebsiella pmeumonia Salmonella entertidis Shigella Sonnei Staphylococcus aureus Streptococcus pyogenes *Hint: The organisms used in the Lab. are listed in the Safety Guidelines...
Please look at these two photos of an unknown gram positive and
gram negative bacteria that were Gram stained. What is the
morphology/characteristics of these unknown bacteria?
AA
We were unable to transcribe this imageWe were unable to transcribe this image
6. Refer to Tables 13.2 and 13.3 and classify Escherichia coli, Bacillus subtilis and Enterobacter aerogenes as Gram-positive, Gram-negative, coliform or non-coliform a. E. coli- b. B. subtilis - C. E. aerogenes- 7. What is the role of eosin and methylene blue in EMB agar? 8. Why do fermenters produce dark colonies on EMB agar? 4 Page
MacConkey agar questions 4. Would this bacteria be a Gram positive or a Gram negative? How do you know? 5. Does this bacteria ferment lactose? How do you know?
Describe the color of Gram positive and Gram negative bacteria in each step of the Gram staining procedure. (Be sure to account for the procedure, the reagent, and the colors of Gram negative and Gram positive bacteria in your description.)
The cultures of a set
of patients grow gram-negative, oxidase-positive, urease positive
and H2S- positive bacteria. Using the key bellow, what
is the causative agent of these infections?
Gram reaction? Oxidase? Morphology? Yes No Rods Cocci Urea hydrolyzed? Citrate utilized? Yes Erysipelothrix Staphylococcus rhusiopathiae aureus No Yes No Klebsiella Yersinia pneumoniae enterocolitica H S produced? Yes No Indole produced? Bordetella bronchiseptica Brucella ceti Acetoin produced? (V-P test) Mannheimia haemolytica Yes No Aeromonas hydrophila Pasteurella multocida
find the unknown bacteria based on this results?
List of possible Bacteria • Selective Unknown Bacteria # 4. and Differential Media results for 4 Test MSA PEA Gram (+) to Bacillus cereus (bacillus) do 2. Bacillus mepeterum (becillus) 3. bacillus subtilis (bacillus) Blood 1-Starch Results Interpretation Presumptive ID red frowth Orpinism does not ferment manitol. Nonpathogenic No reochrom (-) good growth oganism is not inhibitelje gram Phenylethyl alcohol complete olipeskon 14 red blood cells on o nomeync activity B hemolytic...
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