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26 Cards in this Set
- Front
- Back
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atomic mass is determined by the number of neutrons plus _________ |
protons |
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the number of protons in an atom determines the ___________ |
element |
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smallest complete unit of a compound or diatomic gas |
molecule |
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a new substance formed by the combination of two or more different atoms |
compound |
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area that electrons are found around an atomic nucleus |
energy level |
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a substance consisting of only one type of atom |
element |
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the reactivity of an atom is due to the number and arrangement of ______ in the outer energy level |
electrons |
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a substance which will resist changes in pH within reasonable limits |
buffer |
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any substance which accelerates a chemical reaction without being used up in the reaction |
catalyst |
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what is expected when reactants break bonds? |
energy output |
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when a molecule is formed from the bonding of atoms, ions or simpler molecules |
synthesis reaction |
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all of the chemical reactions in the organism for maintenance of the processes of life |
metabolism |
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carbs are _______ |
starches |
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lipids are ____________ |
phospholipids, fats, steroids |
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nucleic acids: |
sugars, phosphates, dna and rna |
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proteins: |
amino acids |
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lipids are water-soluble t/f |
false |
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of the three lipid types, ______ are most similar to fats |
phospholipids |
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the dna bases are attached to the ________ part of the structure |
phosphate |
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all proteins carry the genetic code which determine the structure and function of an organism t/f |
false |
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enzyme, antibody, hormone and muscle are played by: |
proteins |
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polymerization |
synthesis |
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decomposition |
hydrolysis |
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"blueprint" molecules |
nucleic acids |
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double-stranded |
dna |
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saccharides are _________ |
carbohydrates |
