BIO_SC 1500 Quiz: Bio Exam 2
Document Summary
The structure and function of a cell"s overall shape and composition, as well as individual cell components, are. An organelle"s membrane and its enzymes correlate with its function, and cell structure (e. g. , the type, size, and number of organelles) correlates with cell function. Information: all organisms process hereditary information from environment & encoded in genes. Energy: all organisms acquire and use energy. Cells: all organisms are made up of membrane-bound cells. Replication: all organisms are capable of reproduction. Evolution: populations of organisms are continually evolving. Morphology: there are two broad groupings of life: prokaryotes: lack membrane-bound nucleus, eukaryotes: have nucleus. Bacterial cells vary greatly in size and shape, but most bacteria contain several structural similarities: One supercoiled circular chromosome found in the nucleoid region of the cell; contains a long strand of dna and a few supportive proteins. Plasmids: small, supercoiled, circular dna molecules, usually contain genes that help the cell adapt to unusual environmental conditions.
