0
Want this question answered?
Be notified when an answer is posted
Add your answer:
Earn +20 pts
What kind of bacteria would most likely cause a disease?
Pathogenic bacteria are more likely to cause diseases. These bacteria possess virulence factors that help them infect and harm their host. Examples include strains of E. coli, Salmonella, and Staphylococcus aureus.
What is the importance of gram positive and gram negative bacteria?
Gram positive and gram negative bacteria are important for different reasons. Gram positive bacteria have a thick layer of peptidoglycan in their cell wall, making them more susceptible to certain antibiotics. Gram negative bacteria have an outer membrane that can be more resistant to antibiotics and their cell wall contains lipopolysaccharides which can trigger immune responses. Knowing the gram stain result of a bacterium helps in choosing appropriate antibiotics for treatment.
Can you elimintate gram positive bacteria from a gram positive gram negative mixture with mild detergent treatment?
No, mild detergent treatment would likely not effectively eliminate gram positive bacteria from a gram positive and gram negative bacterial mixture. Gram positive bacteria have thick peptidoglycan layers that make them more resistant to detergent treatment compared to gram negative bacteria. To selectively eliminate gram positive bacteria, other treatments such as antibiotics or disinfectants targeting gram positive bacteria specifically would be more effective.
Why gram positive bacteria typically more resistant that gram negative bacteria to antibiotics that disrupt plasma membranes such as polymyxin B?
Gram positive bacteria have a thicker peptidoglycan layer in their cell wall, which provides an additional barrier against antibiotics like polymyxin B that target the plasma membrane. The lipopolysaccharide outer membrane of gram negative bacteria can impede the entry of certain antibiotics, making them less susceptible to these types of drugs compared to gram positive bacteria.
Which bacteria is NLF oxidase negative motile citrate and urease positive and TSI alkali nochange?
The bacteria described is likely to be Proteus species. Proteus is negative for oxidase, motile, and positive for citrate utilization, urease production, and TSI (triple sugar iron) test showing an alkaline/no change reaction. These characteristics are commonly associated with Proteus species.
What kind of bacteria would most likely cause a disease?
Pathogenic bacteria are more likely to cause diseases. These bacteria possess virulence factors that help them infect and harm their host. Examples include strains of E. coli, Salmonella, and Staphylococcus aureus.
What is the importance of gram positive and gram negative bacteria?
Gram positive and gram negative bacteria are important for different reasons. Gram positive bacteria have a thick layer of peptidoglycan in their cell wall, making them more susceptible to certain antibiotics. Gram negative bacteria have an outer membrane that can be more resistant to antibiotics and their cell wall contains lipopolysaccharides which can trigger immune responses. Knowing the gram stain result of a bacterium helps in choosing appropriate antibiotics for treatment.
Can you elimintate gram positive bacteria from a gram positive gram negative mixture with mild detergent treatment?
No, mild detergent treatment would likely not effectively eliminate gram positive bacteria from a gram positive and gram negative bacterial mixture. Gram positive bacteria have thick peptidoglycan layers that make them more resistant to detergent treatment compared to gram negative bacteria. To selectively eliminate gram positive bacteria, other treatments such as antibiotics or disinfectants targeting gram positive bacteria specifically would be more effective.
Which bacilli are gram positive oxidase negative and catalase positive?
Bacillus species are gram-positive, oxidase-negative, and catalase-positive. They are rod-shaped bacteria commonly found in soil and are known to form endospores for survival in harsh conditions. Bacillus species can cause infections in humans, such as food poisoning and soft tissue infections.
Why gram positive bacteria typically more resistant that gram negative bacteria to antibiotics that disrupt plasma membranes such as polymyxin B?
Gram positive bacteria have a thicker peptidoglycan layer in their cell wall, which provides an additional barrier against antibiotics like polymyxin B that target the plasma membrane. The lipopolysaccharide outer membrane of gram negative bacteria can impede the entry of certain antibiotics, making them less susceptible to these types of drugs compared to gram positive bacteria.
Which bacteria is NLF oxidase negative motile citrate and urease positive and TSI alkali nochange?
The bacteria described is likely to be Proteus species. Proteus is negative for oxidase, motile, and positive for citrate utilization, urease production, and TSI (triple sugar iron) test showing an alkaline/no change reaction. These characteristics are commonly associated with Proteus species.
Will a very bright star on the HR diagram most likely have positive or negative magnitude?
Positive - most of them are far away.
What cells are most likely damaged by penicillin?
Gram positive bacteria
What is negative two times negative two?
positive two whoever wrote positive 2 is wrong and most likely intoxicated or below 10 years old..the answer is really positive 4. 2 times two equals four and negative times negative equals positive..positive 4
Why is negative four to the fourth power negative?
Because A Negative x A pOsItIVE = nEgaTiVE * * * * * (-4)4 = 256. It is positive, not negative. The most likely reason for getting a negative result is that no brackets were used and so what was calculated was actually -44
In an experiment DNA from dead pathogenic bacteria was transferred into living bacteria that do not cause disease These altered bacteria were then injected into healthy mice These mice died of the?
This experiment demonstrates the concept of transformation, where genetic material from one organism is taken up by another resulting in a change in phenotype. The injected bacteria likely acquired the pathogenic genes from the dead bacteria, causing them to become virulent and resulting in the death of the mice. This highlights the importance of understanding genetic transfer mechanisms and the potential dangers of gene transfer between organisms.
If at the end of gram staining both the gram positive and gram negative bacteria appear red what is the most likely explanation?
If both gram positive and gram negative bacteria appear red after Gram staining, it is likely that either the staining process was not performed correctly or the decolorization step was not carried out properly. This could lead to both types of bacteria retaining the red stain (crystal violet) and not taking up the counterstain (safranin). Checking the procedure and ensuring proper timing of each step can help to correct this issue.
