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bogdanovich [222]
4 years ago
15

A gram-negative cell wall consists of_________

Biology
1 answer:
omeli [17]4 years ago
3 0

Answer:

The correct answer is D. A gram-negative cell wall consists of a thin layer of peptidoglycan surrounded by an outer membrane containing lipopolysaccharides.

Explanation:

Gram-negative bacteria are bacteria that do not retain the gentian violet dye during the Gram staining protocol.

During the Gram staining process, a contrast dye, usually safranin, is added after gentian violet, causing the Gram negative bacteria to stain pink or red. The contrast dye thus allows the visualization of Gram-negative bacteria which, because they have a thinner layer of peptidoglycans, cannot retain the gentian violet dye.

Its main feature is an endotoxin called lipopolysaccharide that causes pathogenicity and is responsible for its virulence.

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antiseptic1488 [7]

Answer:

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2) Both contain cytoplasm.

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4) Only eukaryotic cells have membrane-bound organelles.

5) Both tend to be microscopic in size.

6) Only eukaryotes are either multicellular or unicellular.

7) Only prokaryotes are only single-celled.

4 0
3 years ago
Is hydrogen separating from oxygen part of cellular reparation
Y_Kistochka [10]
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During chilly days, you might notice lizards lying (“basking”) in sunny areas. Why do lizards bask in the sun?
alukav5142 [94]

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Explanation:

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3 years ago
When an object has more negative charge than positive charge the result is called
bixtya [17]
I believe it was just called "the rule of law"
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Higher-order folding involves association of the dna with a nuclear _____, which contains large amounts of _____ and _____.
Sonja [21]

Higher-order folding involves association of the DNA with a nuclear scaffold, which contains large amounts of Histone H1 and Topoisomerase II.

<h3>What is Histone?</h3>

Histones are highly basic proteins abundant in lysine and arginine residues that provides structural support for a chromosome. They are found in eukaryotic cell nuclei. They act as spools around which DNA winds, which gives the chromosome a more compact shape, to create structural units called nucleosomes. Nucleosomes in turn are wrapped as 30-nanometer fibers that form tightly packed chromatin. There are five types of histones namely H2A, H2B, H3, H4 and H1 linker histone. Within a nucleosome, they exist as two dimers of (H2A-H2B) and a complex of (H32-H42) eventually forming an octamer.

<h3>What is Topoisomerases?</h3>

Topoisomerases are nuclear enzymes which play essential roles in DNA replication, transcription, chromosome segregation, and recombination.

To learn more about Histone and Topoisomerases, click the given link brainly.com/question/27293176

#SPJ4

4 0
1 year ago
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