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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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The rise in manufacturing beginning in the early 1800s eventually resulted in __________ by 1848?
mamaluj [8]

Answer:

The correct answer is "The emergence of a larger middle class in the North".

Explanation:

The missing options of this question are:

A) The emergence of a larger middle class in the North

B) A decline in economic inequality in urban areas

C) An increased demand for agricultural workers in the Midwest

D) The improvement of working conditions in factories

The correct answer is "The emergence of a larger middle class in the North"

The period of 1800 to 1848 is characterized by being of economical growth due to the rise in manufacturing technology. Result of this economical growth, many families improve their economical conditions and by 1848 a larger middle class emerged in the North. However, eventually a laboring poor population started to growth as well.

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Arlecino [84]

Answer:

Due suitable environment and high productivity.

Explanation:

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T/F Polar molecules will easily cross plasma membrane composed of a lipid bilayer.
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Answer:

Definition.    Predation refers to a flow of energy between two organisms, predator and prey. ... The word 'predation' derives from the Latin word praedari, meaning 'to plunder'. Predation includes carnivory, as well as interactions like grazing, parasitism, and symbiotic mutualism.

An example of predation is an animal eyeing its next kill for supper. noun.

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