A possible answer is: Bacteria contain peptidoglycan in the cell wall; archaea do not . The cell membrane in bacteria is a lipid bilayer; in archaea, it can be a lipid bilayer or a monolayer. Bacteria contain fatty acids on the cell membrane, whereas archaea contain phytanyl.
What are 3 differences between bacteria and archaea?
Archaea have cell walls that lack peptidoglycan and have membranes that enclose lipids with hydrocarbons rather than fatty acids (not a bilayer). ... Bacteria: cell membrane contains ester bonds; cell wall made of peptidoglycan; have only one RNA polymerase; react to antibiotics in a different way than archea do.
What is the major difference between bacteria and archaea?
Similar to bacteria, archaea do not have interior membranes but both have a cell wall and use flagella to swim. Archaea differ in the fact that their cell wall does not contain peptidoglycan and cell membrane uses ether linked lipids as opposed to ester linked lipids in bacteria .
What is the difference between archaea and bacteria quizlet?
Archaea have more complex RNA polymerases than Bacteria , similar to Eucarya. Unlike bacteria, archaea cell walls do not contain peptidoglycan. Archaea have different membrane lipid bonding from bacteria and eukarya.
How does archaea differ from bacteria and eukaryotes?
Bacteria: cells do not contain a nucleus. Archaea: cells do not contain a nucleus; they have a different cell wall from bacteria . Eukarya: cells do contain a nucleus.
Which is older bacteria or archaea?
And it is no longer believed that Archaea are any older than Bacteria, as their name and the New York Times headline might imply. ... Now, probably all textbooks show Life as comprising the domains Bacteria, Archaea and Eukarya, with the last two the more closely related.
What is unique about archaea?
Unique archaea characteristics include their ability to live in extremely hot or chemically aggressive environments , and they can be found across the Earth, wherever bacteria survive. Those archaea that live in extreme habitats such as hot springs and deep-sea vents are called extremophiles.
Why are archaea and bacteria in different domains?
Archaea Domain
Archaea have genes that are similar to both bacteria and eukaryotes . ... Archaea differ from bacteria in cell wall composition and differ from both bacteria and eukaryotes in membrane composition and rRNA type. These differences are substantial enough to warrant that archaea have a separate domain.
Can archaea cause disease?
No definitive virulence genes or factors have been described in archaea to date. Nevertheless, archaea may have the means, and they certainly have the opportunity, to cause disease. Archaea share some characteristics with known pathogens that may reflect the potential to cause disease.
What are the similarities and differences between bacteria and archaea quizlet?
Bacteria have a unique compound called peptidoglycan in cell walls. Archaea have unique phospholipids in their plasma membrane and hydrocarbon tails that contain isoprene.
What is unique about archaea quizlet?
Archaea are organisms that have many unique molecular traits. Archaea are prokaryotes , but their cell walls are chemically different from those of bacteria. Some olecules in archaea are similar to molecules in eukaryotes. Some molecules in archaea are not found in other living things.
What do archaea bacteria and Eukarya have in common?
Both can carry out asexual reproduction . Translation and transcription that occurs in Archaea is similar to that that occurs in Eukaryota (the one in bacteria is unique). DNA replication in Archaea is similar to that in Eukarya.
Do Bacteria and Archaea have DNA?
Archaea and bacterial cells lack organelles or other internal membrane-bound structures. ... Archaea and Bacteria generally have a single circular chromosome – a piece of circular, double-stranded DNA located in an area of the cell called the nucleoid. In contrast, many eukaryotes have multiple, linear chromosomes.
The defining feature that sets eukaryotic cells apart from prokaryotic cells (Bacteria and Archaea) is that they have membrane-bound organelles, especially the nucleus , which contains the genetic material, and is enclosed by the nuclear envelope.
What does bacteria have that archaea doesn t?
A possible answer is: Bacteria contain peptidoglycan in the cell wall ; archaea do not. The cell membrane in bacteria is a lipid bilayer; in archaea, it can be a lipid bilayer or a monolayer. Bacteria contain fatty acids on the cell membrane, whereas archaea contain phytanyl.
Is archaea older than eukaryotes?
Archaeans are an ancient form of life , possibly the most ancient. Putative fossils of archaean cells in stromatolites have been dated to almost 3.5 billion years ago, and the remains of lipids that may be either archaean or eukaryotic have been detected in shales dating from 2.7 billion years ago.
