Eukaryote

A eukaryote is a single-celled or multicellular organism that contains a membrane bound nucleus. A eukaryotic cell has a nucleus that entraps the DNA unlike the prokaryotic cell that lets it be free. A prokaryote is also known as bacteria. The DNA roams freely inside of the cell. Eukaryotic cells are large meanwhile prokaryotic cells are much smaller. There are many differences about the prokaryotes and eukaryotes cells. The DNA replication of a eukaryotic cell would be two chains held together by H bonds. The nitrogenous bases that eukaryotes have are adenine, thymine, guanine and cytosine. DNA structure composes of one chain having guanine paired with cytosine by three H- bonds and one chain having adenine and thymine held by two H- bonds. The transcription of eukaryotic cells gets carried from the nucleus and proceeds in three stages: initiation, elongation, and termination. Eukaryotic genes are not regulated by operons, but they do have DNA binding proteins. Cell division in eukaryotes is more complex than prokaryotes. When eukaryotic cell divides it occurs in two steps: mitosis and cytokinesis. During mitosis, the nuclear membrane breaks down and reforms. The chromosomes also separate to where each daughter cell receives a diploid number of chromosomes. Cytokinesis is the division of cytoplasm that results in…

groups: archaea and bacteria. Thus, the development of the three domains was created to include archaea, bacteria, and eukaryotic domains. During the course of this Session Long Project I will define the general characteristics which determine whether a prokaryote belongs to the Archaea or Bacteria domain. I will define and discuss the role in which DNA and RNA play in this determination, I will also discuss the role metabolism plays in classifying Nitrosococcus oceani and Nitrosopumilus…

Biologist Lynn Margulis first proposed the philosophy of endosymbiosis in the 1960s ("Endosymbiosis and The Origin of Eukaryotes", 2016) revealing that other cellular organelles such chloroplasts, as being similar to mitochondria.This includes their self-replicating ability and a double mellbrane accompanying their ribosomes and DNA. Such evidence suggests, Chloroplast organelles were also once f8-living bacteria ("Endosymbiosis and The Origin of Eukaryotes", 2016). Given that the first…

Simpler than eukaryotes, but complex compared to bacterial cells, Archaea are single celled microorganisms that are similar to bacteria in size and simplicity of structure but more closely related to Eukaryotes when it comes to molecular organization. They are believed to have evolved before Eukarya and after Bacteria which can be proved by microfossils traces, biomarkers, and more. Archaea at first seemed very similar to Bacteria, and many were categorized as such. Only later was the new domain…

The simple definition of Eukaryotes is that they are any organism whose cells contain a nucleus and other membrane enclosed organelles. Taxonomically, Eukaryotes belong to the taxon Eukarya. The three types of eukaryotic microbes are fungi, protozoa, and algae. Because the three types of eukaryotic microbes are all composed of eukaryotic cells, they have basic similarities in cellular structure, including the presence of a nucleus. However, these types of microbes do differ in many significant…

Even though systematics previously used more conventional systems such as Chatton’s division of life in to two main cellular groups; the eukaryote-prokaryote dichonomy (cited in Sapp, 2005), as well as Whittaker’s Five Kingdom system to organise all living things (Whittaker, 1969), they do not co-exist compatibly or correctly. The five kingdom system is not phylogenetically correct and eukaryote and prokaryote systems do not take into consideration new sequencing abilities (Kandler, Wheelis &…

cells. Prokaryote and Eukaryote Prokaryote Cell – simplest and most ancient type of cells. There where the only form of life in Earth for billions of years before eventually giving rise to Eukaryote cells (2.7 billion years ago). If you take a look at Prokaryote and Eukaryote side by side, you can see a number of differences. To begin with, prokaryote cells are a lot smaller than Eukaryote cells and have a simpler structure. But bare in mind that this simple structure is actually a good thing…

perform all activities required for life and is capable of independent reproduction, unlike a virus which is not a cell because it cannot independently reproduce and requires a host cell to do so. Both prokaryotes and eukaryotes are types of cell but vary in terms of structure. A prokaryotic cell is a cell which lacks a defined nucleus, meaning there is a nucleoid which is not bounded by a membrane. Prokaryotes and usually unicellular, but can form larger organisms. A eukaryotic cell is a cell…

Structure and Functional Differences and Similarities of Prokaryotes and Eukaryotes All living organisms are made up of cells. Different types of organisms require different cellular structures to function properly. Eukaryotes are structurally more complex than prokaryotes. While prokaryotes don’t have any membrane-bound organelles in common with eukaryotes, prokaryotes do have some non-membrane-bound components in common with eukaryotes. Eukaryotes are made of several key organelles whose…

organelles. These cells can be put into two categories which are the prokaryotes and the eukaryotes, and they have many differences and similarities. The prokaryotes derive from prokaryotic cells whose fossils have been in existence for over 3.8 billion years, which mean they have learned to adjust to the earth’s environments more than any other life form. Prokaryotes are the bacteria and their close relatives, of which have few internal parts. The prokaryotes are a assorted body of fundamental…