[MCDB 1150] - Final Exam Guide - Comprehensive Notes for the exam (28 pages long!)

• School: CU-Boulder
• Department: Molecular Cell & Developmental Biology
• Course: MCDB 1150
• Professor: Jennifer Martin

Document Summary

Chapter 1: biology and the tree of life. An organism is a living entity that consists of one cell or more (unicellular or multicellular) All organisms have cells which are membrane-bound units; the cell membrane regulates the passage of materials between the external and internal environment. All organisms evolve ; populations continue to evolve today. All organisms have genetic information which is encoded in units called genes; organisms respond to information from their environment and they adjust correspondingly in order to maintain their internal conditions in a stable environment. All organisms require energy in order to stay alive and reproduce; organisms either acquire or use energy e. g plants absorb sunlight e. g animals ingest food. 2nd: cells arise spontaneously under the right conditions. Luis pasteur had rejected the above hypotheses since his experiments showed that cells do not arise spontaneously but are produced only when preexisting cells grow and divide.