Biol 1108 Exam 3: The Sonoran Desert
Questions with Correct Answers 2025
SonoranWDesertW-WCORRECTWANSWERW-LocatedWinWtheWSWWUSWandWNWWMexico
Summer:WScarceWprecipitationWandWhighWtemperaturesWmakeWSummersWunsuitableWforWplantWgr
owth
Spring:WtooWdryWforWplantWgrowth
Winter:WbestWseasonWforWplantWgrowthW(especiallyWannuals),WbutWprecipitationWisWveryWunpredic
table
SunWwillWalmostWneverWbeWaWlimitingWreactant
AnnualsW-WCORRECTWANSWERW-
plantsWthatWgerminate,Wgrow,WsetWseedWandWdieWinWaWsingleWgrowingWseason
CelluloseW-WCORRECTWANSWERW-moleculeWthatWmakesWupWmostWofWaWplant'sWbiomass
-CarbonWinWcelluloseWcomesWfromWair
VanWHelmont'sWExperimentW-WCORRECTWANSWERW--
grewWaW5lbWwillowWtreeWinW200lbWofWdriedWdirtWforW5Wyears.WAfterW5Wyears,WtheWtreeWweighedW1
69WlbWbutWtheWsoilWweighedWtheWsameWamount
-ProvesWplantsWgetWCWfromWtheWair
RootsW-WCORRECTWANSWERW--PlantWorganWthatWobtainsWwater
-PlantWallocatesWresourcesWhereWwhenWdry
-WhereWwaterWentersWplant
, LeavesW-WCORRECTWANSWERW--
PlantWorganWthatWcreates/obtainsWcarbon/sugarWAndWcollectsWlight
-MoreWleaves,WmoreWgrowthWpotentialWandWfasterWgrowth,WbutWmoreWtranspiration
-WhereWwaterWexitsWplantsWthroughWstomata
StemW-WCORRECTWANSWERW-
plantWallocatesWresourcesWhereWshortWtermWtoWcompeteWwithWsurroundingWplants
XylemW-WCORRECTWANSWERW-
vascularWtissueWofWplantsWthatWcarriesWONLYWwaterWthroughWhollow/deadWcellsWfromWrootsWtoWle
avesW(oneWdirection)WusingWcohesion,Wadhesion,WandWnegativeWpressure
PhloemW-WCORRECTWANSWERW-
vascularWtissueWofWplantsWthatWcarriesWdissolvedWnutrient,Whormones,Wsugars,Wetc.,WaroundWaWpl
antWinWanyWdirectionWusingWosmosis
StomataW-WCORRECTWANSWERW--
gapsWthatWopenWandWcloseWthatWallowWgasesWtoWenterWandWexitWtheWleaves
-PrimaryWfunctionW:WgasWexchangeW(constantWexchangeWisWideal)
-AllowWoxygenW(andWunfortunatelyWwater)WtoWescape
-AllowWCO2WtoWenterWfromWtheWatmosphere
-Tradeoff:WwaterWlossWforWgasWexchange
GuardWCellsW-WCORRECTWANSWERW--cellsWthatWsurroundWstomata
-Kidney-shaped
-StomataWOpenW-WguardWcellsWturgid,WabundantWwater
-StomataWClosedW-WguardWcellsWflaccid,WscarceWwater
-CanWalsoWforceWstomataWtoWopenWusingWhormonesWandWionWflow
Questions with Correct Answers 2025
SonoranWDesertW-WCORRECTWANSWERW-LocatedWinWtheWSWWUSWandWNWWMexico
Summer:WScarceWprecipitationWandWhighWtemperaturesWmakeWSummersWunsuitableWforWplantWgr
owth
Spring:WtooWdryWforWplantWgrowth
Winter:WbestWseasonWforWplantWgrowthW(especiallyWannuals),WbutWprecipitationWisWveryWunpredic
table
SunWwillWalmostWneverWbeWaWlimitingWreactant
AnnualsW-WCORRECTWANSWERW-
plantsWthatWgerminate,Wgrow,WsetWseedWandWdieWinWaWsingleWgrowingWseason
CelluloseW-WCORRECTWANSWERW-moleculeWthatWmakesWupWmostWofWaWplant'sWbiomass
-CarbonWinWcelluloseWcomesWfromWair
VanWHelmont'sWExperimentW-WCORRECTWANSWERW--
grewWaW5lbWwillowWtreeWinW200lbWofWdriedWdirtWforW5Wyears.WAfterW5Wyears,WtheWtreeWweighedW1
69WlbWbutWtheWsoilWweighedWtheWsameWamount
-ProvesWplantsWgetWCWfromWtheWair
RootsW-WCORRECTWANSWERW--PlantWorganWthatWobtainsWwater
-PlantWallocatesWresourcesWhereWwhenWdry
-WhereWwaterWentersWplant
, LeavesW-WCORRECTWANSWERW--
PlantWorganWthatWcreates/obtainsWcarbon/sugarWAndWcollectsWlight
-MoreWleaves,WmoreWgrowthWpotentialWandWfasterWgrowth,WbutWmoreWtranspiration
-WhereWwaterWexitsWplantsWthroughWstomata
StemW-WCORRECTWANSWERW-
plantWallocatesWresourcesWhereWshortWtermWtoWcompeteWwithWsurroundingWplants
XylemW-WCORRECTWANSWERW-
vascularWtissueWofWplantsWthatWcarriesWONLYWwaterWthroughWhollow/deadWcellsWfromWrootsWtoWle
avesW(oneWdirection)WusingWcohesion,Wadhesion,WandWnegativeWpressure
PhloemW-WCORRECTWANSWERW-
vascularWtissueWofWplantsWthatWcarriesWdissolvedWnutrient,Whormones,Wsugars,Wetc.,WaroundWaWpl
antWinWanyWdirectionWusingWosmosis
StomataW-WCORRECTWANSWERW--
gapsWthatWopenWandWcloseWthatWallowWgasesWtoWenterWandWexitWtheWleaves
-PrimaryWfunctionW:WgasWexchangeW(constantWexchangeWisWideal)
-AllowWoxygenW(andWunfortunatelyWwater)WtoWescape
-AllowWCO2WtoWenterWfromWtheWatmosphere
-Tradeoff:WwaterWlossWforWgasWexchange
GuardWCellsW-WCORRECTWANSWERW--cellsWthatWsurroundWstomata
-Kidney-shaped
-StomataWOpenW-WguardWcellsWturgid,WabundantWwater
-StomataWClosedW-WguardWcellsWflaccid,WscarceWwater
-CanWalsoWforceWstomataWtoWopenWusingWhormonesWandWionWflow