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Chapter Two Vocab
Biology 094
| Question | Answer |
|---|---|
| atom | the smallest unit of an element |
| carbohydrate | a group of organic composed of C, H, and O usually in a 1:2:1 ratio; mono-, di, and polysaccharides |
| chemical compound | a substance formed of two or more elements combined in a fixed ratio |
| chemical element | a substance that cannot be broken down into simpler substances by chemical means |
| decomposition reaction | the breakdown of complex molecules into simpler molecules |
| enzyme | a protein that catalyzes chemical reactions |
| isotope | an atom of an element having the same number of protons and electrons but a different number of neutrons than most atoms of the element |
| lipid | a group of organic compounds containing fats |
| molecule | the smallest unit of a compound; composed of two or more atoms chemically combined |
| monosaccharide | a simple sugar; a carbohydrate molecule composed of a single saccharide unit |
| nucleic acid | a complex organic molecule composed of necleotides |
| protein | a group of nitrogen-containing organic compounds formed of amino acids |
| synthesis reaction | formation of a molecule by combining atoms of simpler molecules |
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bacopeland
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