comercially. Objectives 1. To identify prokaryote cell and eukaryote cell. 2. To compare between prokaryotic and eukaryotic cells 3. To differentiate between animal and plant cell. 4. To identify the organelles and describe the functions of each organelles. Equipment and Materials 1. Microscope 2. Methylene blue stain 3. Iodine stain 4. Glass slide 5. Cover slip 6. Knife 7. Lens paper 8. Dropper 9. Onion 10. Cheek cell 11. Prokaryote cell suspension Methodology
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their cellular arrangement: prokaryotes and eukaryotes. Approximately 3.5 billion centuries in the past‚ prokaryotic organisms conquered our world. Afterwards‚ around 1.5 billion centuries ago‚ a nucleated cell named eukaryote evolved then the Cambrian blast‚ in the vicinity of 0.5 billion centuries ago‚ aided in the development of multicellular entities. The cell partitions of prokaryotes are normally designed of a dissimilar molecule to that of eukaryotes. Furthermore‚ they are different
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Prokaryotes are organisms whose cells lack a nucleus and membrane-enclosed organelles. Most prokaryotes are small‚ single-celled organisms that have a relatively simple structure. Prokaryotic cells are surrounded by a plasma membrane‚ but they have no internal membrane-bound organelles within their cytoplasm. The absence of a nucleus and other membrane-bound organelles differentiates prokaryotes from another class of organisms called eukaryotes. Prokaryotes and Eukaryotes are similar in their chemical
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Difference between the Gene Regulation in Prokaryotes and Eukaryotes Gene regulation is important for all cells to be able to control gene repression and the amount of proteins produced by those genes. It helps to make sure the cell uses resources efficiently and express the right genes under the right conditions. Gene regulation can be found in both prokaryotic and eukaryotic cells. The methods of regulation differ between the two groups. Prokaryotic regulation mostly occurs by enzymes interacting
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The organisms first believed to live on Earth were the Prokaryotes. Prokaryotes have many differences and similarities to a Eukaryote. For an example‚ their names sound similar yet they are not the same so that makes them different. Since there are so many organisms‚ the organisms are separated into those two broad categories. Prokaryotes are nearly always a unicellular organisms. An example of a Prokaryote is bacteria and archaea . Prokaryotes do not contain a nucleus or a membrane that should surround
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Cell Biology 1 – Prokaryotes & Viruses * Eukaryotes have a membrane whereas a prokaryote has no nuclear membranes. Both have a double stranded DNA. * The two main types of prokaryotes are bacteria and Archaea and eukarya are types of eukaryotes. * Archaea are more closely related to eukaryotes. * Prokaryotes have a membrane and nucleoid and most have a cell wall. * There are 3 main types of shapes of prokaryotes: * Bacillus – rod shapes * Spirilum – spiral shaped
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division of labour. There are two main classes of cells- Prokaryotes which are cells without a nucleus‚ where the DNA is spread around the cytoplasm of the cell‚ an example of a prokaryote is a bacterium (See Figure 1). The other class is the Eukaryotes which are the cells of plants and animals‚ and example is a palisade cell (See Figure 2). Both have similarities and differences in their functions and structures. Both Prokaryote and Eukaryote cells consist of Cell wall‚ (however this is not present
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According to the website www.tutorvista.com‚ Prokaryotes differ from eukaryotes in their structure‚ packing‚ density‚ and arrangement of their genes on the chromosome. Differences in cellular structure of prokaryotes and eukaryotes include the presence of mitochondria and chloroplasts‚ the cell wall‚ and the structure of chromosomal DNA. All cells share some common characteristics that make them living things and all organisms are composed of cells which are the basic fundamental unit of life.
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very different biochemistry from archaea regular bacteria in soil‚ water‚ pathogens cyanobacteria Animal Plant Fungi Protist origins first to appear in the fossil record‚ not physically changed today most likely evolved from prokaryotes SIMILARITIES building blocks carbon compounds amino acids‚ nucleotides‚ fatty acids‚ monosaccharides Functioning units proteins‚ nucleic acids‚ lipids‚ carbohydrates information storage info expression DNA‚ use the same language
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Prokaryote Organelles: Nucleoid Region: The region in a prokaryotic cell consisting of a concentrated mass of DNA. (The “nucleus” of a prokaryotic cell) The nucleoid instructs all the organelles on what to do. Ribosome: A cell organelle consisting of RNA and protein organized into two subunits and functioning as the site of protein synthesis in the cytoplasm. The ribosomal subunits are constructed in the nucleolus. (Make proteins from amino acids) The nucleoid controls the ribsomes and specifies
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