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20 Cards in this Set

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  • Back
A tentative explaination a scientist proposes for a specific phenomenon that has been observed
A type of cell lacking a membrane-enclosed nucleus and other membrane-enclosed organelles; found only in the Domaines Bateria and Archaea
Prokaryotic Cell
A type of cell that has a membrane-enclosed nucleus and other membrane-enclosed organelles
Eukaryotic Cell
An inhereted characteristic that enhances an organism's ability to survive and reproduce in a particular environment
Evolutionary Adaption
A taxonomic category above the kingdom level
(1) An atom's central core, containing protons + neutrons (2)The genetic control center of a eukaryotic
The genetic material that organisms inherit from their parents
An assemblage of all the organisms living together + potentially interacting in a particular area
All the organisms in a given area. along w/ the nonliving factors w/ which they interact; a biological community and its physical environment
The smallest unit of matter that retains the properties of an element
A large lipid molecule made from an alcohol called glycerol and three fatty acids; a triglyceride. Most fats function as energy-storage molecules
A complex, extensively branched polysaccaride of many glucose monomers; serves as an energy-storagemolecule in liver and muscle cells
A protein that serves as a biological catalyst, changing the rate of a chemical reaction without itself being changed in the process.
A discrete unit of hereditary information consisting of a specific nucleotide sequence in DNA. Most of the genes of a eukaryote are located in its chromosomal DNA; a few are carried by the DNA of mitochondria and chloroplasts.
A chemical subunit that serves as a building block of a polymer.
The thin layer of lipids and proteins that sets a cell off from its surrounding and acts as a selective barrier to the passage of ions and molecules into and out of the cell; consists of a phospholipid bilayer in which are embedded molecules of protein and cholesterol.
Plasma Membrane
A structure with a specialized function within a cell.
A chemical compound containing the element carbon and usually synthesized by cells.
Organic Compound
A large molecule consisting of many identical or similar molecular units, called monomers, convalently joined together ina chain.
A threadlike, genecarrying structure found in the nucleus of a eukaryotic cell and most visible during mitosis and meiosis; also, the main gene-carrying structure of a prokaryotic cell.