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The Chemical Composition of Living Things

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    Chemical compositions of living things
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  • What are the two types/classifications of biomolecules?
    inorganic and organic
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  • These types of biomolecules are found in both living and non-living things.
    inorganic biomolecules
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  • This is the most abundant substance found in living things. It makes up approximately 65% of the human body.
    water
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  • These substances can be found in living things in the form of dissolved ions or precipitated as crystals.
    mineral salts
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  • These types of biomolecules are unique to living things and contain significant amounts of carbon.
    organic biomolecules
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  • These are the simplest forms of carbohydrates, composed of only one molecule (EX: glucose).
    monosaccharides
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  • This carbohydrates are formed when two monosaccharides are joined (EX: glucose).
    disaccharides
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  • These carbohydrates are formed with many monosaccharides are joined (EX: cellulose and glycogen).
    polysaccharides
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  • Carbohydrates, lipids, proteins, and nucleic acids are examples of what type of biomolecule?
    organic
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  • These molecules vary widely in structure and include fats, phospholipids, and cholesterol.
    lipids
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  • These are the simplest lipid. They can be broken down into fatty acids and glycerol.
    fats
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  • These large biomolecules (macromolecules) are composed of many smaller molecules called amino acids.
    proteins
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  • Collagen, haemoglobin, and antibodies are examples of important__________ in humans.
    proteins
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  • These macromolecules are composed of smaller ones call nucleotides.
    nucleic acids
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  • What are the two types of nucleic acids?
    DNA and RNA
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