Water , pH, Atoms, Macromolecules
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| Atom | basic unit of matter
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| Element | substance consisting of one type of atom
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| Isotope | atom of an element that has a number of neutrons different from that of other atoms of the same element
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| compound | chemical combination of two or more elements
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| ionic bond | A bond created by the attraction between a positive and negative ion.
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| ion | An atom that has a positive or negative charge because it is missing an electron or has an extra electron.
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| covalent bond | a bond between two atoms in which electrons are shared. A covalent bond can either be polar or non polar.
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| van der waals forces | Intermolecular forces of attracton
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| Polar molecule | a molecule in which the charges are unevenly
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| hydrogen bonds | two hydrogen atoms and one oxygen atom connected by polar covalent bonds.
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| cohesion | an attraction between molecules of the same substance
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| adhesion | an attraction between molecules of a different substance
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| solution | mixture of two or more substances in which the molecules of the substances are evenly distributed
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| suspension | mixture of water and non-dissolved materials
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| ph scale | pH: A measure of how acidic or basic a substance is. The pH scale goes from 0 - 14. A pH of 7 is neutral. A pH less than 7 is acidic. A pH greater than 7 is basic.
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| Buffers | weak acid or base that can react with strong acids or bases to help prevent sharp; sudden changes in PH
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| carbohydrate | A sugar or starch. Carbohydrates are large molecules or polymers. Carbohydrates are made of monomers called monosaccharides. Carbohydrates are used as an energy source. Examples of carbohydrates include glucose and glycogen.
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| Monosacccharid | singel sugar molecule
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| polysaccharides | Large macromolecule formed from mommosacharids
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| lipid | macromolecule made mainly from carbo and hydrogen atoms; includes fats, oils, and waxes
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| nucleic acids | macromolecule contaning hydrogen, oxygen,nitrogen,carbon, and phosphorus
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| nucleotides | The building block (monomer) of nucleic acids (DNA and RNA) Nucleotides are composed of a phosphate, sugar, and a nitrogen base.
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| proteins | macromolecule that contains carbon,hydrogen, oxegen,and nitrogen; nedded by body for growth and repairing and makeingup enzymes
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| amino acids | The monomer (building block) of a protein
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| Hydrophilic | love water
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| hydrophobic | fear of water
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| homeostasis | Keeping your insides in balance; maintaining a stable internal environment. This is one of the five characteristics of life. ...
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dani_g
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