BIOLOGY
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Compound | A substance made up of atoms of two or more different elements joined by chemical bonds
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| Mixture | A combination of two or more substances that are not chemically combined
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| Solution | A homogeneous mixture of two or more substances
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| Element | A pure substance made of only one kind of atom
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| Base | A substance that decreases the hydrogen ion concentration in a solution.
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| fatty acids | Chains of carbon atoms bonded to hydrogen atoms
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| Atom | Basic unit of matter
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| hydrogen bond | Attraction between a slightly positive hydrogen atom and a slightly negative atom.
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| Solvent | A liquid substance capable of dissolving other substances
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| Solute | A substance that is dissolved in a solution.
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| Lipid | Energy-rich organic compounds, such as fats, oils, and waxes, that are made of carbon, hydrogen, and oxygen.
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| Monosaccharide | A single sugar molecule such as glucose or fructose, the simplest type of sugar.
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| Nucleus | Control center of the cell
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| Electron | A subatomic particle that has a negative charge
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| ionic bond | A chemical bond resulting from the attraction between oppositely charged ions.
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| Ion | A charged atom
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| covalent bond | A chemical bond that involves sharing a pair of electrons between atoms in a molecule
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| Molecule | A group of atoms bonded together
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| Cohesion | Attraction between molecules of the same substance
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| pH scale | measurement system used to indicate the concentration of hydrogen ions (H+) in solution; ranges from 0 to 14
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| Acid | any compound that forms H+ ions in solution
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| Ashesion | Force of attraction between different kinds of molecules
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| Buffer | Compound that prevents sharp, sudden changes in pH
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| Suspension | A mixture in which particles can be seen and easily separated by settling or filtration
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| Monomer | A simple compound whose molecules can join together to form polymers
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| Carbohydrate | Compound made up of carbon, hydrogen, and oxygen atoms; major source of energy for the human body
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| Nucleotide | Monomer of nucleic acids made up of a 5-carbon sugar, a phosphate group, and a nitrogenous base
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| Protein | A three dimensional polymer made of monomers of amino acids.
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| Polymer | A long molecule consisting of many similar or identical monomers linked together.
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| nucleic acids | DNA and RNA
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| amino acids | Building blocks of proteins
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Created by:
shakura122
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