Create an account
A large molecule consisting of many identical or similar molecular units, called monomers, covalently joined together in a chain
The form of native DNA, referring to its two adjacent polynucleotide strands wound into a spiral shape
A type of nucleic acid consisting of nucleotide monomers with a ribose sugar and the nitrogenous bases adenine (A), cytosine (C), guanine (G), and uracil (U); usually single-stranded; functions in protein synthesis and as the genome of some viruses
A double-stranded, helical nucleic acid molecule capable of replicating and determining the inherited structure of a cell's proteins
condensation reaction/dehydration reaction
a reaction in which two molecules become covalently bonded to each other through the loss of a small molecule, usually water
An extensively branched glucose storage polysaccharide found in the liver and muscle of animals; the animal equivalent of starch.
The building block of a nucleic acid, consisting of a five-carbon sugar covalently bonded to a nitrogenous base and a phosphate group
Type of lipid, A long, straight hydrocarbon chain with a carboxyl group attached at one end. Three of these linked to a glycerol molecule form fat.
a type of lipid characterized by a carbon skeleton consisting of four rings with various functional groups attached
A steroid that forms an essential component of animal cell membranes and acts as a precursor molecule for the synthesis of other biologically important steroids
A sugar (monosaccharide) or one of its dimers (disaccharides) or polymers (polysaccharides)
A biological compound consisting of three faty acids linked to one glycerol molecule
A polymer (polynucleotide) consisting of many nucleotide monomers; serves as a blueprint for proteins and, through the actions of proteins, for all cellular activities. The two types are DNA and RNA.
A discrete unit of hereditary information consisting of a specific nucleotide sequence in DNA (or RNA, in some viruses)
A chemical process that lyses, or splits, molecules by the addition of water; an essential process in digestion
One of a family of compounds, including fats, phospholipids, and steroids, that are insoluble in water
Has a six-membered ring of carbon and nitrogen atoms. The members of this family are cytosine (C), thymine (T), and uracil (U)
A structural polysaccharide of cell walls, consisting of glucose monomers joined by b-1, 4-glycosidic linkages
A structural polysaccharide of an amino sugar found in many fungi and in the exoskeletons of all arthropods
The covalent bond between two amino acid units, formed by a dehydration reaction/condensation synthesis
Are larger (than pyrimidines), with the six-membered ring fused to a five-membered ring. Examples are adenine (A) and guanine (G)
A three-dimensional biological polymer constructed from a set of 20 different monomers called amino acids
An organic molecule possessing both carboxyl and amino groups. They serve as the monomers of proteins.
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