In the beginning of term 3, we learned about archaea and bacteria in unit 8 (Microbes). In our class notes, we know that Bacteria is 1 of 3 domains. Archaea is another domain, just like bacteria. However, in the Biology textbook, there are many differences between archaea and bacteria. They are similar because both are prokaryotes. But their main differences are their cell structure, habitats, and genetic makeup. Bacteria Bacteria RNA polymerases are small/simple, while archaea have complex polymerases similar to eukaryotes. Introns are only in archaea, not bacteria. Bacterial cell walls are made of peptidoglycan, not found in archaea cell walls. These are the main differences between archaea and bacteria.
Summary:
-Similarities between archaea and bacteria:
Archaea and bacteria have a few similarities in which they share. They are both prokaryotes, without any complex cell structure like eukaryotes. Archaea and bacteria have cell walls on the outside, providing structural support, and lets certain elements/substances pass through for cellular work. Bacteria is 1 of 3 domians, and Archaea is another domain. Both distinguish almost identical looks when looking through a microscope, since they are both prokaryotes. Bacteria and archaea both reproduce using binary fission, and move around using flagella.
-Differences between archaea and bacteria:
Archaea and bacteria have a lot of differences with each other. Becteria has cell wall made of peptidoglycan, whereas archaea don't. Both have different lipid composition. Archaeal lipids don't have any fatty acids, which are found in the other 2 domains (bacteria and eukarya). Archaea have side chains (polymers) made up of units of isoprene (chemical compound composed of C5H8). Archaea and bacteria similarly have 70S ribosomes, but archaea has a different shape. Archaea also has a complex RNA polymerases, bacteria has a more simple RNA polymerases. Archaea and bacteria are metabolically different from each other. Archaea dosn't use the process glycolysis to break down glucose. Most types of archaea don't have Kreb's Cycle pathways, but few types do.
Source info:
URL: http://www.colorado.edu/eeb/EEBprojects/schmidtlab/studentres/EBIO3400/Lecture11.pdf
Publisher/creator: University of Colorado
Date visited: 3-7-13
Summary:
-Similarities between archaea and bacteria:
Archaea and bacteria have a few similarities in which they share. They are both prokaryotes, without any complex cell structure like eukaryotes. Archaea and bacteria have cell walls on the outside, providing structural support, and lets certain elements/substances pass through for cellular work. Bacteria is 1 of 3 domians, and Archaea is another domain. Both distinguish almost identical looks when looking through a microscope, since they are both prokaryotes. Bacteria and archaea both reproduce using binary fission, and move around using flagella.
-Differences between archaea and bacteria:
Archaea and bacteria have a lot of differences with each other. Becteria has cell wall made of peptidoglycan, whereas archaea don't. Both have different lipid composition. Archaeal lipids don't have any fatty acids, which are found in the other 2 domains (bacteria and eukarya). Archaea have side chains (polymers) made up of units of isoprene (chemical compound composed of C5H8). Archaea and bacteria similarly have 70S ribosomes, but archaea has a different shape. Archaea also has a complex RNA polymerases, bacteria has a more simple RNA polymerases. Archaea and bacteria are metabolically different from each other. Archaea dosn't use the process glycolysis to break down glucose. Most types of archaea don't have Kreb's Cycle pathways, but few types do.
Source info:
URL: http://www.colorado.edu/eeb/EEBprojects/schmidtlab/studentres/EBIO3400/Lecture11.pdf
Publisher/creator: University of Colorado
Date visited: 3-7-13
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