what are some of the functions performed by viruses?
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[' They are self-replicating and increase in number.', ' They infect various computer programs.', ' They deliver a payload to your computer.']
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Functions. The nucleus has very important roles to play. As it contains genetic material, it coordinates cell activities like protein synthesis and cell division.
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These viral proteins control and influence viral gene expressions in the viral genome, including viral structural gene transcription rates. Viral regulatory and accessory proteins also influence and adjust cellular functions of the host cell, such as the regulation of genes, and apoptosis.
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They perform a variety of functions that include protection, secretion, absorption, excretion, filtration, diffusion, and sensory reception.
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Each cell carries out basic life processes that allow the body to survive. Many human cells are specialized in form and function, as shown in Figure below. Each type of cell in the figure plays a specific role. For example, nerve cells have long projections that help them carry electrical messages to other cells.
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['transporting oxygen and nutrients to the lungs and tissues.', 'forming blood clots to prevent excess blood loss.', 'carrying cells and antibodies that fight infection.', 'bringing waste products to the kidneys and liver, which filter and clean the blood.', 'regulating body temperature.']
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DNA serves two important cellular functions: It is the genetic material passed from parent to offspring and it serves as the information to direct and regulate the construction of the proteins necessary for the cell to perform all of its functions.
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Proteins have a variety of function in cells. Major functions include acting as enzymes, receptors, transport molecules, regulatory proteins for gene expression, and so on. Enzymes are biological catalysts that speed up a chemical reaction without being permanently altered.
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Cytotoxic T cells require several signals from other cells to be activated, such as from dendritic cells and T helper cells. Their main function is to kill virally infected cells, but they also kill cells with intracellular bacteria or tumorous cells.
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Viruses are obligate intracellular parasites that can be maintained only inside living cells. Whern we refer to something as "obligate" that indicates that the virus (in this case) must do or behave in the specified manner.
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There is none, because viruses aren't alive. A virus straddles the fuzzy boundary between living and dead. ... You can inactivate viruses by heating them so the protein coat is damaged, or the genetic material is destroyed. You can hit them with radiation to destroy the genetic material.
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All viruses are obligate parasites; that is, they lack metabolic machinery of their own to generate energy or to synthesize proteins, so they depend on host cells to carry out these vital functions. Once inside a cell, viruses have genes for usurping the cell's energy-generating and protein-synthesizing systems.…
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['Input, used to interact with, or send data to the computer (mouse, keyboards, etc.)', 'Output, which provides output to the user from the computer (monitors, printers, etc.)', 'Storage, which stores data processed by the computer (hard drives, flash drives, etc.)']
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What is the difference between a hidden virus and an active virus? * An active virus takes over the cell functions immediately after entering the cell. *A hidden virus becomes part of the genetic material and stays inactive for a while (sometimes years). ... Viruses destroy their host cells.
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The main function of nucleic acids is to store and transmit genetic information and use that information to direct the synthesis of new protein.
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Cells provide six main functions. They provide structure and support, facilitate growth through mitosis, allow passive and active transport, produce energy, create metabolic reactions and aid in reproduction.
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The main functions of water in living systems are as an effective biological solvent, a reactant molecule in many biological reactions, a temperature regulator, and a pH buffering agent.