BIOL-1030 Chapter Notes - Chapter 1: Protist, Organelle, Cell Theory
Document Summary
Notes from: textbook: campbell biology: concepts and connections 8th edition. Regulate some part of internal environment not all are capable of keeping a constant body temperature, etc. Organelle: subcellular, membrane-bound, performs specific cellular function. Tissue: group of cells of the same type. Population: a group of potentially interbreeding organisms of the same species that occupy the same area. Community: all the organisms in a given area, excludes abiotic environment. All living organisms are comprised of one or more cells. Cells can only arise from division of pre-existing cells. Prokaryotic (no nucleus: arose ~3. 5 billion years ago, simpler (1-10 m in size, no membrane-bound organelles/nuclei, found in bacteria & archaea. Eukaryotic (true nucleus: arose ~2. 5 billion years ago, complex (10-100 m in size, many membrane-bound organelles/nuclei, found in fungi, plants, animals, protista. Decomposers convert complex matter into simple(r) mineral nutrients. Each feeding/tropic level gives off heat energy during conversion (loss of 90%)
