Create an account
(chemistry) a substance formed by chemical union of two or more elements or ingredients in definite proportion by weight
molecule with an unequal distribution of charge, resulting in the molecule having a positive end and a negative end
A type of molecular notation in which the constituent atoms are joined by lines representing covalent bonds.
a chemical formula that shows the number and kinds of atoms in a molecule, but not the arrangement of the atoms.
weak chemical bond formed by the attraction of positively charged hydrogen atoms to other negatively charged atoms
a range of numbers used to describe how acidic or basic a solution is; ranges from 0 (most acidic) to 14 (most basic)
a chemical process in which a compound is broken down and changed into other compounds by taking up the elements of water.
the form of sugar that circulates in the blood and provides the major source of energy for body tissues.
an organic compound containing carbon, hydrogen and oxygen atoms; includes fats, oils, and waxes
a lipid made from fatty acids that have no double bonds between carbon atoms; tend to be solid at room temperature.
A lipid made from fatty acids that have at least one double bond between carbon atoms; tend to be liquid at room temperature.
(chemistry) a substance that changes color to indicate the presence of some ion or substance
an organic compound that contains carbon, hydrogen, oxygen, and nitrogen; ie. enzymes, antibodies, receptors, pigments, hormones.
a process in which a protein loses it's shape, thereby becoming biologically inactive. It occurs under extreme conditions of pH, salt, and temperature.
a polysaccharide that is used to build the exoskeletons of animals and the cell wall of fungal cells
Please allow access to your computer’s microphone to use Voice Recording.
Having trouble? Click here for help.
We can’t access your microphone!
Click the icon above to update your browser permissions and try again
Reload the page to try again!Reload
Press Cmd-0 to reset your zoom
Press Ctrl-0 to reset your zoom
It looks like your browser might be zoomed in or out. Your browser needs to be zoomed to a normal size to record audio.
Please upgrade Flash or install Chrome
to use Voice Recording.
For more help, see our troubleshooting page.
Your microphone is muted
For help fixing this issue, see this FAQ.
Star this term
You can study starred terms together