Bio 150 Final Exam|| 95 Questions|| Correct 100%(RATED A+)

Dr. Keck studies - ANSWER fish 5 Major: Evolution - ANSWER populations of organisms and their cellular components have changed over time through both selective and non-selective processes. 5 Major: Structure and Function - ANSWER all living systems (organisms, ecosystems, etc) are made of structural components whose arrangements determines the function of the systems. 5 Major: Transformations of Matter and Energy - ANSWER All living things acquire, use and release matter and energy for cellular organismal functioning. How are bacteria, archaea, and eukaryotes are related? - ANSWER Last Universal Common Ancestor (LUCA) 7 Criteria for life - ANSWER 1. Organization 2. metabolism 3. growth 4. homeostasis 5. response to stimuli 6. adaptation 7. reproduction timeline for early earth: earth's formation and the first single celled organisms - ANSWER 4.5 bya Earth was formed, 4 bya the crust was solidified, 3.5 bya we find the oldest fossils of microorganisms (all of these are prokaryotes), prokaryotes dominant between 3.5-2 bya (morphologically they haven't changed very much) 4 steps leading to cellular life: flow chart and early experiments - ANSWER 1. Abiotic synthesis of small organic molecules (monomers) C+H = organic molecule. 2. Monomers joined together to form polymers (proteins, nucleic acids) 3. Origin of self-replicating molecules (inheritance of traits) and proteins and polynucleic acids 4. Packaging of these organic molecules into protobionts. Aggregrates of abiotically produced molecules that maintain an internal chemical environment and exhibit some of the properties associated with life (metabolism, excitability). This goes to the common ancestor of all known life. Evidence: Energy from lightning, UV radiation, Oparin and Haldane in 20's: abiotic synthesis of organic molecules in lab. Hypothesis: conditions on primitive earth favored chemical reactions that synthesize organic compounds from inorga