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Bio Chap 6 Vocab
-jackson- all sections
Question | Answer |
---|---|
acid | any substance that forms hydrogen ion in water |
atom | the smallest particle of an element that has the characteristics of the element |
base | any substance that forms hydroxide ions in water |
compound | substance composed of atoms of two or more different elements that are chemically combined |
covalent bond | the force that holds 2 atoms together |
element | substance that can't be broken down into simpler chemical substances |
ion | charged particle |
ionic bond | attractive force between two ions of opposite charge |
isotope | atoms of the same element that have different numbers of neutrons |
metabolism | all of the chemical reactions that occur within an organism |
mixture | combination of substances in which that individual components retain their own properties |
molecule | group of atoms held by covalent bonds and having no overall charge |
nucleus | center of an atom |
PH | measure of how acidic or basic a solution is |
solution | mixture in which one or more substances are distributed evenly in another substances |
diffusion | net movement of particle from an area of higher concentration eventually resulting in distribution |
dynamic equilibrium | continues movement but no overall concentration change |
hydrogen bond | a weak bond caused by the attraction of opposite charges |
polar molecule | molecule with an unequal distribution of charge |
amino acid | basic building blocks of proteins |
carbohydrate | organic compound composed of carbon, hydrogen, and oxygen with a ration of about two hydrogen atoms and one oxygen atom |
enzyme | protein that changes the rate of a chemical reaction |
isomer | compounds that have the same simple formula but different three dimensional structures |
lipid | organic compounds that have a large proportion of CH bonds and less oxygen than carbohydrates |
nucleic acid | a complex macro molecule that stores cellular information in the form of a code |
peptide bond | covalent bond formed between the amino acids |
polymer | large molecule formed with smaller molecules |
protein | large complex polymer composed of carbon, hydrogen, oxygen, nitrogen, and usually sulfur |