0
the organism which is positive
Wiki User
∙ 11y ago
Add your answer:
Earn +20 pts
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.
What ingredients of EMB agar inhibit the growth of gram positive organisms?
methylene blue
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 are two types of feedback mechanisms found in living organisms?
positive feedback - increase activity negative feedback - decrease activity
What is the purpose of sodium azide in the Bile Esculin test?
The purpose of the bile esculen azide agar is to inhibit the growth of gram-positive organisms.
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.
What is the study of how organisms interact with their environment and each other?
im almost positive it is ecology
Will too much phenyl ethyl alcohol kill gram-positive organisms?
Yes.
What ingredients of EMB agar inhibit the growth of gram positive organisms?
methylene blue
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 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 is the purpose of crystal violet in the Gram's stain procedure?
Its the primary stain of the procedure. IT stains the Gram positive organisms
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.
How can you remove crystal violet in a Gram Stain?
You won't be able to positively distinguish gram negative from gram positive organisms. Crystal violet is used first so that gram positive organisms will take up the dye and this color is not affected by safrinin later on. Gram negative organisms will lose the purple coloring during the decolorizer step, therefore need to be counterstained so that you can view the organisms.
