Vocabulary for water unit in 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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| Buffers | Weak acids or bases that can react with strong acids or bases to prevent sudden changes in pH
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| Macromolecules | Carbon molecules in living things that are so large
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| Monosaccharides | molecules with one sugar molecule
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| Lipids | (fats,oils,and waxes)
Carbon hydrogen atoms
Used to store energy and form parts of the biological membranes and waterproof coverings
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| Nucleic Acids | (hydrogen,oxygen,nitrogen,phosphorus)
Nucleotides:5- carbon sugar, a phosphate group, and nitrogen base
Transmits heredity info
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| Proteins | (nitrogen,carbon,hydrogen,& oxygen) polymers of amino acid
Regulate cell process, form cellular structures, carry substances in & out of cells, help fight disease
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| Chemical Reaction | process that changes one set of chemicals into another set of chemicals
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| Reactants | Elements or compounds that enter into reaction
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| Activation Energy | Energy needed to get a reaction started
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| Enzyme | Protein that acts as a biological catalyst
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| Catalyst | Substance that speeds up the rate of the chemical reaction
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| Substrates | In an enzyme - catalyzed reaction, the reactants are known as substrates
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| Laesur | Lowers activation energy and speeds up reaction
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| Protons | Positive Charge
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| Neutrons | No Charge
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| Electrons | Negative charge. Electrons constantly move around the space surrounding the atom's nucleus
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| Isotopes | Atoms of the same element that differ in the # of neutrons
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| Element | Pure substance that consists entirely of one type of atom
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| Compound | substance formed by the chemical combination of two or more elements in definite proportions
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| Ionic Bonds | Forms when one or more electrons are transferred from one atom to another forming ions
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| Covalent Bond | Electrons are shared rather than transfered
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| Molecule | Atoms joined by covalent bonds
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| Van der Waals Forces | Bends the molecule down
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| Adhesion | An attraction between molecules of different substances
Ex/tape and skin
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| Base | Compound that forms OH- ions in solution
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| pH Scale | Measures the concentration of hydrogen ions in a solution
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| Suspensions | Mixtures of water and undissolved materials
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| Mixture | Material composed of 2 or more elements or compounds that are physically mixed together but not chemically combined
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| Acid | Any compound that forms H+ ions in solution
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| Atom | The basic unit of matter
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| Products | Elements or compounds produced by the reaction
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| Cohesion | An attraction between 2 molecules of the same substance
Ex/tape and tape
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| Solution | Mixture in which all the components are spread out
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| Solute | The substance dissolve
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| Solvent | The substance causing the dissolving
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