Biology I Worksheet

regulation and maintenance of constant internal conditions in an organism
proposed explanation or answer to a scientific question
specific region of DNA that codes for a particular protein
group of organisms so similar to one another that they can breed and produce fertile offspring
proposed explanation for a wide variety of observations and experimental results
substance made of only one type of atom that can't be broken down by chemical means
attraction between molecules of the same substance
mixture that is consistent throughout; also called a homogeneous mixture
molecule composed of carbon, hydrogen, and oxygen; includes sugars and starches
non-polar molecule composed of carbon, hydrogen, and oxygen; includes fats and oils
polymer composed of amino acids linked by peptids
condition in which reactants and products of a chemical reaction are formed at the same rate
protein that catalyzes chemical reactants for organisms
membrane-bound structure that is specialized to perform a distinct process within a cell
organelle composed of numerous membranes that are used to convert solar energy into chemical energy; contains chlorophyll
condition or quality of allowing some, but not all, materials to cross a barrier or membrane