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kvv77 [185]
3 years ago
12

What is a possible explanation for why bacteria lack ether-linked cell membranes

Biology
1 answer:
oee [108]3 years ago
3 0

Answer:

Because they do not live in the extreme environments.

Explanation:

Cell membrane has a vital role in separating the external environment of cell from its external environment. Just like eukaryotic cell, cell membrane of bacteria is also composed of proteins and lipids (phospholipids).

If we compare the structure of ancient bacteria's and modern bacteria's cell membrane then we notice that in  archaebacteria or ancient bacteria the phospholipids of cell membrane are linked with ether (means they have glycerol backbones). whereas in modern bacteria they are linked through ester linkages.

So, the stronger glycerol backbones give the archaebacteria more stable cell membranes through which they are able to resist harsh environmental stresses like salt lakes, volcanic stress, boiling mud and hot springs. As modern bacteria do not always have to live under such stresses thats why they donot have ether-linked cell membrane.

Hope it helps!

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Two students are discussing the processes that form the different rocks near mountains and lakes. Which choice below compares th
BARSIC [14]

Answer:

Processes of rock formation : Erosion & weathering, dissolution

Explanation:

Rocks are naturally occurring solid mass, or aggregate of minerals / mineraloil matter.

Processes that form rocks :

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8 0
3 years ago
Monomers are the building blocks of which of the following? SELECT ALL THAT APPLY
kirill [66]

Monomers are molecules whose linkage between them form polymers.

<h3>What are monomers?</h3>

Monomers are molecules that have a low molecular mass.

<h3>Characteristics of monomers</h3>

  • When many monomers come together through chemical bonds they form a polymer, which is a macromolecule.

  • Natural monomers allow the formation of biomolecules found in living beings.

  • Carbohydrates, for example, are macromolecules that are created from the bond established by monosaccharides (monomers).

Therefore, we can conclude that polymers, in short, are chains of monomers -generally joined by covalent bonds-.

Learn more about monomers here: brainly.com/question/24573189

3 0
2 years ago
What might happen if cells divide uncontrollably
Luba_88 [7]
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What odd thing happens at Mercury’s perihelion to the sun ?
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In 2016, a rare transit of Mercury happened, where the planet crossed the face of the sun. Mercury's transit may have yielded secrets about its thin atmosphere, assisted in the hunt for worlds around other stars, and helped NASA hone some of its instruments.
3 0
3 years ago
In garden peas the allele for tall plants () is dominant over the allele for dwarf plants() A true breeding tall plant is bred w
marta [7]

Answer: This is called Monohybrid Experiment

Explanation: Monohybrid Cross

P Generation TT     *   tt

  Tall plants     Dwarf plants

F1 Generation  

T T

t Tt Tt

t Tt Tt

In F1 generation;

There are 100% Tt Genotype and 100% Tall plant Phenotype

F2 Generation

F1   *   F1

( Tt   *   Tt )

T t

T TT Tt

t Tt tt

In F2 Generation;

Genotype

There are 25% TT (homozygous dominant, tall plants).

50% Tt (heterozygous tall plants), and

25% tt (homozygous recessive dwarf plants).

This is how dwarf characteristics reappear in the second generation.

The Phenotype of F2 generation is 3:1  (Tall : Dwarf)

I have attached a document to this answer to facilitate effective understanding if there is anormalities in arrangement the Punnet Square.

Download docx
5 0
3 years ago
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