Primary cell

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  • Battery Essay

    device that makes electric current through motion of cells which are the components of the battery. They are devices that convert their inner chemical energy into electrical energy. A battery has of two or more cells which are connected together in order to give out electricity. Batteries are commonly used in single cells such as the ones used to power radios, watches and small electrical appliances that are used in everyday life. They are also used to supply energy to various machines or tools such as hearing aids and automobiles, and sizes like portable systems at different areas. They are also a resource for the use of direct current (DC). Batteries are mostly impractical because they are used for very large…

    Words: 1958 - Pages: 8
  • Energizer Current Paper

    1886 when former Brush Electric Company executive W.H. Lawrence forms National Carbon Company (NCC). Two years later in 1888 Conrad Hubert starts the American Electrical Novelty and Manufacturing Company which changes its name in 1905 to American Ever Ready. In 1914 American Ever Ready becomes part of NCC and in 1917 merges with Union Carbide Company to form Eveready Battery Company and known today as Energizer. Over the next 32 years the Eveready Battery is a full-line supplier of…

    Words: 1996 - Pages: 8
  • Microtubules Research Paper

    motor proteins attached to the vesicles. Microtubules can also expand or shrink in length in order to establish dynamic structures that can efficiently change the internal organization of the cell, and capture organelles through the cytosol. Intermediate filaments are made up of the protein keratin. Their primary function is to strengthen the internal structure of a cell. Microfilaments are the smallest among the three cytoskeletal filaments. They consist of protein actin. Microfilaments are…

    Words: 1932 - Pages: 8
  • What Is The Increased Efflux Of Mimosa Pudica

    transport of K+ in the pulvinar cells (the thickening at the base of a leaflet that causes the movement of the leaflet based on differing turgor pressure in these cells). They tested many hypotheses regarding the seismonastic reaction in the Mimosa pudica, one of which tested whether there was an increased efflux of K+ from pulvinar cells during stimulation. The experimenters used all home-grown Mimosa pudica (sensitive plants). They removed pulvini cells from the stem by cutting above and…

    Words: 1053 - Pages: 5
  • Protein Macromolecules

    “the collection of proteins within a cell determines its health and function Proteins are responsible for nearly every task of cellular life, including cell shape and inner organization, product manufacture and waste cleanup, and routine maintenance. Proteins also receive signals from outside the cell and mobilize intracellular response. They are the workhorse macromolecules of the cell and are as diverse as the functions they serve. Proteins can be big or small, mostly hydrophilic or…

    Words: 397 - Pages: 2
  • Ovarian Stroma

    the ovaries have an ovoid shape and are usually 3-5cm long. They are a layered structure with an outer layer germinal epithelium, tunica albuginea, cortex and medulla that is innermost (fig. 1). Although now challenged by recent discoveries (1), the germinal epithelium; a continuation of the peritoneum, is inaptly named due the mistaken belief that germ cells arise from this surface layer. Instead germ cells are more likely to arise from the gonadal tissue itself (2). Spindle shaped cells called…

    Words: 657 - Pages: 3
  • Lysosomes Research Paper

    the structure and function of a lysosome. Lysosomes are a cell organelle, translating as an independent structure within a cell, possessing a specific structure and function. For a lysosome its functions include; digestion of intracellular or extracellular material, nutrition from digested macromolecules and defence/protection from harmful substances. Lysosomes are variable from cell to cell in terms of shape and size but are conventionally spherical or oval shaped, 0.5µm in diameter and around…

    Words: 552 - Pages: 3
  • Eukaryotic Cell Relationship

    Relationship between cells Cells contain organelles these are the basis of a cell it contains many organelles and is basically the same a human these cells are the basic blocks of life cells are microscopic and what makes up tissues. Tissues are visible to the naked eye and are what creates us there are four main types of tissue connective epithelial nervous and muscle. Tissue makes up organs these are the what run us humans and every other living thing these keep them alive and have many…

    Words: 1048 - Pages: 5
  • Central Dogma Of Molecular Biology

    Possible Modifications of Central Dogma of molecular Biology Introduction The central dogma of molecular biology is describes the transfer of genetic information within a biological system and was first stated by Francis Crick in 1956. The central dogma is the flow of genetic information as ‘’DNA makes the RNA and RNA makes the protein.’’All biological cells with few exceptions in some follow this rule. This flow takes place through three fundamental processes: replication, transcription and…

    Words: 1509 - Pages: 7
  • Eukaryotes: A Genetic Analysis

    For all organisms, prokaryotes and eukaryotes, they all must regulate the specific genes that are expressed at any given time (Campbell 365). Each organism continuously turn on and off genes in response to external and internal environmental signals. The regulation of gene expression is especially important in multicellular organisms since it is essential for the different types of cell to have their own cell specialization (Campbell 365). In order for each cell to do it’s given role, they each…

    Words: 1023 - Pages: 5
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