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Zielflug [23.3K]
3 years ago
10

Which step in the Gram stain is the critical step in differentiating Gram negative cells from Gram positive cells?

Biology
1 answer:
rewona [7]3 years ago
5 0

Answer:

The rapid decolorization with ethanol or acetone

and counterstaining with safranin

When a decolorizer such as alcohol or acetone is added, it interacts with the lipids of the cell membrane. A gram-negative cell loses its outer lipopolysaccharide membrane, and the inner peptidoglycan layer is left exposed: when safranin is added they will turn red. Conversely, gram-positives retain the Cristal violet and will color in purple

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7 0
3 years ago
Characteristics that are always present in living organisms are
andrey2020 [161]
<em>characteristics that are always present in well-developed living organisms are 
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3 years ago
Definitive diagnosis of multiple myeloma includes the triad of bone marrow plasmacytosis, lytic bone lesions, and:_______
Ahat [919]

Answer:

Serum or urine components

Explanation:

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4 0
3 years ago
What is the red chicken's genotype?
Sedaia [141]
If red is recessive rr 

If red is dominant it could be RR or Rr 


3 0
3 years ago
Read 2 more answers
What leads to long-term immunity in mammals? . . A. Exposure to an antigen . B. Action of an antibody . C. Barriers
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A. <span>Exposure to an antigen

Exposure to viruses and antigens led to the foundation of modern vaccination. Vaccination introduces an antigenic material that helps the ability of the immune system to adapt a specific pathogen, therefore leading to a long-term immunity.</span>
7 0
3 years ago
Read 2 more answers
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