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Which structure or structures shown in Figure 20-1 have key differences in bacteria and archaea?
A. A and C
B. A and B
C. D only
D. A only

Which structure or structures shown in Figure 201 have key differences in bacteria and archaea A A and C B A and B C D only D A only class=

Respuesta :

Answer: A and B

The label A here represents cell wall and the label B represents cell membrane. Through archaea and bacteria belongs to the same phylum but still there are some differences in their characteristics, such as differences in their cell walls and cell membranes.

The cell wall of archaea is made up of pseudo-peptidoglycan layer, while the cell wall of bacteria is made of the peptidoglycan .

The cell membrane of bacteria is made of lipid membrane with ester bond with fatty acid, while the cell membrane of archaea have ether bonds with the branching of the aliphatic acids.

The characteristic feature of prokaryotes cells is that they lack the nucleus.

Further Explanation:

An ecosystem is made up of mainly two kinds of cells:

  • Eukaryotes cells: They mainly consist of a group of animals, fungi, and plants.
  • Prokaryotes cells: They mainly consist of bacteria and archaea.

The single-celled organisms such as bacteria and archaea are the prokaryotes. Some main features of prokaryotic cells are:

  • They don’t possess membrane-bound organelles and nucleus  
  • The DNA of a prokaryotic cell is present in the cytoplasm of the cell which is mainly called the nucleoid.
  • The size of the cells is around 0.1 to 5.0 μm in diameter.
  • The prokaryotic cell wall provides more protection than the eukaryotic cell wall. They also maintain the shape of the cell and provide defense against dehydration.

So, the archae and bacteria is part of a prokaryotic domain but there is a structural difference between in both of them. The cell wall of the archaea is formed out of pseudo-peptidoglycan layer. On the other hand the bacterial cell wall is formed out of peptidoglycan. The cellular membrane of bacteria is formed out of lipid membrane with ester bond with fatty acid. On the other hand the cell membrane of archaea consist ether bonds with the branching of the aliphatic acids.

Learn more:

  1. Learn more about cell organelle https://brainly.com/question/5923583
  2. Learn more about the diffusion https://brainly.com/question/1386629
  3. Learn more about the plant https://brainly.com/question/862697

Answer Details:

Grade: High School

Subject: Biology

Chapter: Plant Cell

Keywords:

Photosynthesis, dehydration, eukaryotic cell, prokaryotic cell, cytoplasm, single-celled, organism, bacteria, archaea, animal, fungi.