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What else can I help you with?
Why is decolorizing the most crucial step?
It is possible to decolourise gram positive bacteria and thus get false results of all gram negative organisms. Similarly, it is possible to under-decolourise and get all gram positive organisms. Ideally controls of known organisms should be run with each stain.
Is proteus urease positive?
Proteus urease is considered a positive organisim. This occurs when enterics hydrolyze urea and cause a rapid deterioation. This term is also referred to as rapid urease positive organisms.
What psychologist believed that organisms tend to repeat responses that lead to positive outcomes?
B.F. Skinner, a behaviorist psychologist, is known for his work on operant conditioning, which is the idea that organisms tend to repeat behaviors that are reinforced with positive outcomes. Skinner's research focused on how environmental consequences shape behavior.
What are some Possible reasons why higher concentrations of colistin and nalidixic acid was less effective at allowing growth of gram-positive organisms?
Higher concentrations of colistin and nalidixic acid may have caused increased cell membrane disruption in gram-positive organisms, leading to cell lysis and death. Additionally, the mechanism of action of these antibiotics may be specific to gram-negative bacteria, making them less effective against gram-positive organisms at higher concentrations. Resistance mechanisms in gram-positive organisms may also play a role in reducing the effectiveness of these antibiotics at higher concentrations.
What ingredients of EMB agar inhibit the growth of gram positive organisms?
Eosin and methylene blue dyes present in EMB (Eosin Methylene Blue) agar inhibit the growth of gram-positive organisms by interfering with their ability to take up nutrients and causing damage to their cell walls. This makes the medium selective for gram-negative bacteria, allowing them to grow while inhibiting the growth of gram-positive bacteria.
Over-inoculation of the slide with organisms in a wet mount would be a false positive or false negative?
I believe false positive
Why is decolorizing the most crucial step?
It is possible to decolourise gram positive bacteria and thus get false results of all gram negative organisms. Similarly, it is possible to under-decolourise and get all gram positive organisms. Ideally controls of known organisms should be run with each stain.
Will too much phenyl ethyl alcohol kill gram-positive organisms?
Yes.
What is the study of the interactions of organisms with their environment and each other?
im almost positive it is ecology
Is proteus urease positive?
Proteus urease is considered a positive organisim. This occurs when enterics hydrolyze urea and cause a rapid deterioation. This term is also referred to as rapid urease positive organisms.
How are negative and positive feedback mechanisms used by organisms?
two include water levels and body temperature
What psychologist believed that organisms tend to repeat responses that lead to positive outcomes?
B.F. Skinner, a behaviorist psychologist, is known for his work on operant conditioning, which is the idea that organisms tend to repeat behaviors that are reinforced with positive outcomes. Skinner's research focused on how environmental consequences shape behavior.
What is the purpose of the crystal violet in the gram stain procedure?
Its the primary stain of the procedure. IT stains the Gram positive organisms
What are some Possible reasons why higher concentrations of colistin and nalidixic acid was less effective at allowing growth of gram-positive organisms?
Higher concentrations of colistin and nalidixic acid may have caused increased cell membrane disruption in gram-positive organisms, leading to cell lysis and death. Additionally, the mechanism of action of these antibiotics may be specific to gram-negative bacteria, making them less effective against gram-positive organisms at higher concentrations. Resistance mechanisms in gram-positive organisms may also play a role in reducing the effectiveness of these antibiotics at higher concentrations.
Does penicillin cure all infections and bacteria?
Penicillin is NOT effective against gram positive and negative cocci and gram positive bacilli only. it is not effective against rest of the organisms.
What is the gram stain of botulism?
Botulism is caused by the bacterium Clostridium botulinumand all Clostridia species are Gram positive, so the organisms causing botulism would give a Gram positive result :)
Why 7.5 percent sodium chloride agar is selective media?
Because 7.5% NaCl agar inhibits gram negative organisms from growing, and is "selective" in that only gram positive organisms can grow in this type of agar.
