Concept explainers
To review:
The fundamental traits that are common and distinguishing in prokaryotes and eukaryotes.
Introduction:
A cell is defined as the basic unit of life that forms its structural and functional basis. There are two major divisions of cells, prokaryotes, and eukaryotes. Out of these two types of cells, the prokaryotic cell is the primitive one while the eukaryotic is the advanced one. There exist a number of functional and structural differences between these cells.
There are several fundamental traits that are present in both prokaryotic and eukaryotic cells. There are also various intracellular organs that are present in both the cell types. A lipid bilayer comprised of protein and phospholipid arrangement is present in both cell types. Each of these types of cells possesses a genome.
The eukaryotic and the prokaryotic cells also have some uncommon features that mark boundaries between them. A membrane-bound nucleus is present in the eukaryotes but not in the prokaryotes. The genetic material is found to be linear in eukaryotes while circular in prokaryotes. Various membrane-bound organelles are present in eukaryotes that are not present in prokaryotes. The cell walls of both types of cells may also vary in composition.
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Microbiology: An Evolving Science (Fourth Edition)
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- Some prokaryotes, especially archaea, are capable of living in extreme environments, such as deep-sea vents, where temperatures can reach 80°C (176°F). Few organisms can survive at this temperature. What adaptations might archaea possess that allow them to survive in such extreme heat?arrow_forwardThe Prokaryotes are associated with the following structures EXCEPT: A) ribosomes, B) Lysosomes and liposomes, C) a nucleoid area, D) mesosomes, E) chlorophyll.arrow_forwardIn the domain system of classification, prokaryotes are divided into two domains: Bacteria and Archaea. The two domains differ in all BUT one feature. Which feature do they have in common? Question options: They both have identical cell walls. They both have prokaryotic cells. They both thrive in extreme environments. They both are able to live only under anaerobic conditions.arrow_forward
- Why is there a debate as to whether archaea is classified as prokaryotic or eukaryoticarrow_forwardWhat is the evolutionary relationship between eukaryotic cells and organisms with prokaryotic cells and their descendants?arrow_forwardWhy were Archaea originally thought to be simply unusual forms of Bacteria? What lines of evidence showed this domain to form a distinct branch on the tree of life?arrow_forward
- Biology (MindTap Course List)BiologyISBN:9781337392938Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. BergPublisher:Cengage Learning