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19 Cards in this Set
- Front
- Back
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CHNOPS Biological elements
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Carbo, Hydrogen, Nitrogen, Oxygen, Phosphorus, Sulfur
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Basic unit of structure in matter_________ which is composed of a________ surounded by an_______ ______.
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Atom; nucleus; electron cloud
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Positively charged particle
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proton
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Proton sign; neutron sign
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p+: n0
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Atoms with a charge are called?
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Ions
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Positive ions are called? and negative ions are called?
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Cations; anions
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Cations form when? Anions form when?
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atoms lose elctrons; atoms gain electrons
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A group of atoms that are chemically bonded
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compound
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we represent compounds with____________.
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chemical formulas
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Some biological compounds are:
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water, oxygen, carbon dioxide, nitrogen, hydrogen, and glucose.
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form when electrons are shared between atoms in a molecule
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Covalent bonds
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form when elctrons are shared between atoms forming an attraction between oppositely charged particles
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ionic bonds
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form between molecules in a substance
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hydrogen bonds
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The ability to do work
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energy
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Measure of the hydrogen ions
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pH scale
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forms hydrogen ions in a solution
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acid
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forms hydroxide ions in solution
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base
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4 types of biological compounds:
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Carbohyrates, proteins, lipids, nucleic acid
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Compounds that contain carbon are _______.
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Organic
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