Home > Flashcards > Bible Studies > Botany Exam #2

Details Title: Botany Exam #2 Description: Exam guide Total Flash Cards: 83 Created: 10/28/2005 16:50:00	To study from this set of flash cards, or to create your own your own study flash cards, register HERE. If you are already a registered user, CLICK HERE.
Cards Term Xylem Definition Conducts water and minerals up from roots Term Phloem Definition Conducts orgnic materials from the leaves to the other parts of the plant Term All leaves have? Definition Auxillary buds Term Ozone formation Definition O + O2 + UV light -> O3 Term UV wavelengths Definition 200nm -400nm Term Ozone is mostly located in the _________ Definition stratosphere (10-25 miles above the earth) Term How ozone protects us Definition absorbs 95% of harmful solar UV Term How O2 got in the atmosphere Definition cyanobacteria evolved 02 as a photosynthetic biproduct Term CFC's were/are used in ? Definition refrigerants, aerosol, bubbles in plastic foam, solvent fo rcomputer chips Term CFC's take how long to hit the stratosphere? Definition 11-20 years Term Reactiveness (if that is a word) of CFC Definition fairly unreactive Term CFC's remain in the atmosphere for? Definition 65-385 years Term The ozone depletion process Definition Uv radiation breaks down CFC's, CL destroys ozone. Term One Cl can destroy Definition 100,000 03 molecules Term Agricultural distibution Definition 76% croplands 17% rangelands 7% oceans Term world popullation Definition 6.5 billion 2005 9.3 billion 2050 Term First Green revolution Definition 1950-1970 Plant moncultures of highly bred or engineered crops. Use lots of fertilizer, pestecides and water do multiple croppings per year Term 2nd green revolution Definition same as first just add fast growing dwarf crops Term High input agriculture Definition uses 8% of worlds oil Term World grain production Definition wheat, corn , rice Term U.S production of grain Definition 17% Term percentage of americans that our full time farmers Definition 2 Term agricultural sales Definition bigger than auto,steel, and housing combined Term industrialized farming in the U.S. is only possible with __________ Definition cheap oil Term Energy used to produce crops Definition < the energy in the crop Term energy used to produce livestock Definition 3X > energy produced Term developing countries produce ___ percent of the worlds food. Definition 20 Term Charles Darwin Definition British Naturalist, "Evolutionary concept" Term evolutionary concept Definition animals from galapagos looked like animals from south america. Term Alfred Russel Wallace Definition studied plants and animals of malaysia. similar findings to drawin. Term Davinci Definition thought fossils were remains of extinct organisms. Term De lamarck Definition organisms can pass traits acquired during lifetime to offspring in addition to those transmitted genetically. Term four premises of natural selection. Definition 1 overproduction - lots of offspring 2 variation - between individuals 3 competition - not enough to go around 4 survival of the fittest - most fit individuals will reproduce Term spines are Definition modified leaves Term a tendril is a Definition modified leaf Term roses have Definition prickles not thorns Term Convergent evolution Definition independant evolution towards similar results. Term vestigial organs Definition small organs that "appear to have no function Term Mimicry Definition resemblance of an organism (but nor related) Term spine thorn Definition modified leaf modified stem Term Hardy weinberg- no evolution if... Definition random mating no mutations no migration no selection Term genetic drift Definition random evolutionary changes in small pop Term migration Definition gene flow, from natural range to new range Term natural slection leads to Definition adaptation of populations favorable phenotypes Term species Definition reproductively isolated organisms with a common gene pool Term energy metabolism Definition mostly oxidation and reduction Term oxidation Definition remove electrons Term reduction Definition give electrons Term Drives hotosynthesis Definition light (photons) Term Chloroplast Definition where photosynthesis occurs Term organelle Definition membrane bound Term products of light absorption Definition NADPH (electron) ATP (energy) used for carbohydrate synthesis Term net results of photosynthesis Definition O2 and carbohydrates Term Melvin Calvin Definition figured out how sugars are synthesized Term Respiration Definition cytoplasm - glycolysis sugar breakdown Term net results of respiration Definition atp production oxygen consumption processed carbon skeleton CO2 Term Homologous Definition same origin Term herbaceous Definition not woody Term lignin Definition woody Term 3 types of plant tissue Definition ground vascular dermal Term ground tissue Definition photosynthesis structural support storage Term Parenchyma (Ground) Definition photosynthesis and storage Alive, thin primary cell walls Term collenchyman cells (Ground) Definition structural support alive, thick cell walls Term sclerenchyma cells (ground) Definition support dead at maturity, thick secondary lignified cell walls Term Vascular tissue Definition plumbing in the plant Term Dermal tissues Definition epidermis guard cells(stomata) root hairs Term Meristems Definition cell division and growth Term apical meristem Definition primary growth Term lateral meristems Definition secondary growth Term at base of every leaf Definition tiny bud, apical meristem Term monocot Definition x3 leaves, parallel venation Term dicot Definition x4 or 5, netlike venation Term dicot Definition x4 or 5, netlike venation Term transpiration Definition gas exchange Term wilting Definition losing turgid (water pressure) Term wilting Definition losing turgid (water pressure) Term modifications of leaves Definition tendrils spines budscales fleshy (onion) succulent - full of water Term Ecological pyramids Definition Numbers Biomass - total mass Energy - total energy Term ecological efficiency Definition percentage of usable energy as biomass transferred from level to level typically 10% Term GPP Definition Gross Primary Productivity -rate of conversion of solar energy to chemical energy Term Limits number of consumers Definition finite resources carrying capacity Term homologous organs Definition common evolutionary origin Term analogous organs Definition different evolutionary organs