Three Domain Classification System: Bacteria, Archaea And Eukarya

Improved Essays
The three domains classification system includes, Bacteria, Archaea and Eukarya
Bacteria are prokaryotes unicellular cells that live almost everywhere. They reproduce through a process known as binary fission. The cell walls of Bacteria, unlike the Archaea and the Eukarya, contain peptidoglycan. Bacteria are sensitive to some antibiotics but are resistant to most antibiotics that affect Eukarya.
Archaea are prokaryotic cells that can live in a very hot environment. The cells do not contain peptidoglycan. Archaea are not known to cause disease in humans or animals. They also have membranes that contains branched hydrocarbon.
Eukarya have eukaryotic cells .Unlike Bacteria and Archaea, they possess a nucleus. Not all Eukarya possess cells with

Related Documents

  • Improved Essays

    Domestos Lab Report

    • 818 Words
    • 4 Pages

    The purpose of this report is determine whether the natural product; vinegar, is better than man made chemical products; Domestos and Pine O clean. This will be determined by the results of the experiment which product has created the largest zone of inhibition. To determine which of the three disinfectants are the most effective depend the one with the largest inhibition zone. Bacteria are tiny microorganisms that colonise together and are found in every living organism.…

    • 818 Words
    • 4 Pages
    Improved Essays
  • Improved Essays

    A total of four microorganisms were isolated from the sample brought back from Mars. To identify the microorganisms which were isolated from the sample brought back from Mars, an rDNA sequence analysis was required. Every sequence had an S_ab score of 1.000 meaning the sequence is identical to the microorganism that it was matched to. Before gathering phenotypic results, we gathered phylogenetic data for the four microorganisms which includes Micrococcus luteus, Citrobacter freundii, Hafnia alvei, and Staphylococcus epidermidis. Micrococcus luteus is a gram positive, coccus shaped microorganism that is nonmotile and unable to grow on glucose minimal media or simmons citrate agar (Kocur, 1972;).…

    • 963 Words
    • 4 Pages
    Improved Essays
  • Improved Essays

    Ap Biology 3.1.3

    • 634 Words
    • 3 Pages

    3.1 1. The improvements in the microscope help scientists see the cells better and distinguish the different organelles inside the cell. 2. Prokaryotic cells do not have a nucleus and most internal structures that eukaryotic cells. 3.…

    • 634 Words
    • 3 Pages
    Improved Essays
  • Improved Essays

    Since we know billions of bacteria exist in a very small amount of soil we have found that most of the antibiotics that are known today can be found in the soil, we deduced that we would find some microbe exhibiting antimicrobial behaviors in the sampling. Understanding the spectrum of bacteria on which an antimicrobial…

    • 597 Words
    • 3 Pages
    Improved Essays
  • Great Essays

    Unknown Bacteria Essay

    • 1069 Words
    • 5 Pages

    Cell and colony morphology have been very useful taxonomic features in the differentiation and classification of microorganisms (2). Microscopic examination allows microorganisms to be viewed under magnification, to allow cell morphology to be determined. The most common cell shapes are…

    • 1069 Words
    • 5 Pages
    Great Essays
  • Improved Essays

    Gram-negative bacteria are often harmful to a host, which is the case for many of the Salmonella bacteria. Protists 1.) Irish Moss- I knew that this was Irish Moss because it was reddish and kind of like seaweed. This is a protist because it lives in the water like a regular protist would normally do.…

    • 411 Words
    • 2 Pages
    Improved Essays
  • Improved Essays

    Some bacterial cells are naturally…

    • 786 Words
    • 4 Pages
    Improved Essays
  • Improved Essays

    Unknown Bacteria

    • 854 Words
    • 4 Pages

    Introduction Our world is composed of many bacteria that can either help or destroy us. Therefore, its’s imperative to learn and study them. The purpose of the lab was to put into action the methods learned in the laboratory to determine our unknown bacteria. Bacteria can have different features, shapes, and or arrangements that help microbiologist differentiate them.…

    • 854 Words
    • 4 Pages
    Improved Essays
  • Improved Essays

    4. Eukaryotic cells and prokaryotic cells both have DNA genetic material. They both are bounded by a…

    • 1322 Words
    • 6 Pages
    Improved Essays
  • Decent Essays

    This section will be a narrative summary of the characteristic of my unknown bacterium that’ll touch base on the morphology, cell well structure, temperature tolerance, antibiotic resistance, physiology and other interesting experiment results. First is going through the morphology of my unknown bacterium; will be talking about the shape, cell wall structure, and other characteristic using the results from tests such as gram staining, simple staining, and spore staining. According to my lab notebook, the result from gram staining of my known is seen to be a rounded shape, cocci shape all bunched and clustered together like a bunch of grapes at 100x using the microscope (Kaddo, 2017, pg. 22). The color after the safranin wash from gram staining…

    • 312 Words
    • 2 Pages
    Decent Essays
  • Superior Essays

    1.Introduction: Background/Aim. 1.1 Nature of the microorganism: Enterococcus faecalis was placed under group D streptococci because of similar lysis characters; Identified as Gram positive, non-motile, anaerobic fermentative, lactic acid bacteria; are commensal inhabitant of intestinal bacteria and opportunistic pathogens. They occur singly or in pairs or chains. 1.2 Economic importance: Enterococcus faecalis is also used as a probiotic for production of Mediterranean cheese and meat products that is normally responsible for organoleptic nature of final product in fermentation reactions. 1.3 Habitat: Enterococci are extremely hardy microbes such that they are able to inhabit at wide range of temperatures (10°and 45°C), pH values (4•6 and…

    • 1058 Words
    • 5 Pages
    Superior Essays
  • Superior Essays

    INTRODUCTION Cellular respiration is the breaking down of organic molecules by means of catabolic pathways that uses electron transport chain to produce ATP (Campbell 2011). ATP is used as energy in the synthesis of light or also known as Photosynthesis . ATP is used by photosynthetic organisms to produce their own food and also by performing cellular respiration. It needs mainly glucose and oxygen that involves the transfer of electrons in a chemical reaction.…

    • 757 Words
    • 4 Pages
    Superior Essays
  • Improved Essays

    Bacteria Or Prokaryotes

    • 330 Words
    • 2 Pages

    Bacteria also known as prokaryotes are very ancient single-celled organisms; fossils show that they were widespread 1.5 billion years ago. Today bacteria make up the vast majority of prokaryotes on earth due to the unfavorable ability to adapt quickly to the surrounding environment. Bacteria have the capabilities to survive in areas of high heat, extreme cold, or even very acidic or alkaline conditions. This ability is used frequently to fend off the effects of antibiotics and antibacterial; this can be done by using DNA from neighbouring bacteria thus changing its genetic makeup. The DNA change that occurs is passed from one generation to the next.…

    • 330 Words
    • 2 Pages
    Improved Essays
  • Improved Essays

    Some cells are uncomplicated, but others are complex with internal structures called 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 one-celled organisms that are divided into two major groups: the Archaea and the Eubaceria.…

    • 424 Words
    • 2 Pages
    Improved Essays
  • Improved Essays

    Effects Of Cellulose

    • 800 Words
    • 4 Pages

    S, 2004). Their anatomy features Gram-positive, nonsporulating, polyploidic cocci, lacking flagella and motility and resistance to hydrogen peroxide and other agents that damage DNA because of a highly efficient DNA repair system. Although they are considered Gram-positive, they may be an intermediate between gram-positive and gram-negative bacteria and form a distinct bacterial lineage of extremophiles; the Firmicutes phylum has a diversity of microbes associated with the human gastrointestinal tract, especially with fatty acids absorption which makes it connected with obesity when a change in the microbiome occurs, and dominate the bowel environment being linked to human bowel inflammatory diseases. Are also found in at least 60 mammalian species. The Proteobacteria, also known as purple nonsulfur bacteria , is divided in beta, gamma and epsilon Proteobacteria and its organisms are Gram-positive and can grow in an anaerobic environment, using oxyanions of arsenic and as terminal electron acceptors.…

    • 800 Words
    • 4 Pages
    Improved Essays