SLE132 Lecture Notes - Lecture 10: Dinoflagellate, Gibberellin, Diatom
11 May 2018
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MULTIPLEȱCHOICE.ȱȱChooseȱtheȱoneȱalternativeȱthatȱbestȱcompletesȱtheȱstatementȱorȱanswersȱtheȱquestion.
1) Whichȱofȱtheȱfollowingȱareȱproblemsȱassociatedȱwithȱintensiveȱirrigation?
I)ȱmineralȱrunoff
II)ȱoverȱfertilisation
III) aquiferȱdepletion
IV) soilȱsalinisation
A) onlyȱIȱandȱII B) onlyȱIIIȱandȱIV
C) onlyȱI,ȱIII,ȱandȱIV D) I,ȱII,ȱIII,ȱandȱIV
1)
2) Whichȱcriteriaȱallowȱbiologistsȱtoȱdivideȱchemicalsȱintoȱmacronutrientsȱandȱmicronutrients?
A) molecularȱweightȱofȱtheȱelementȱorȱcompound
B) whetherȱorȱnotȱtheyȱareȱessentialȱforȱplantȱgrowth
C) theȱquantitiesȱofȱeachȱrequiredȱbyȱplants
D) howȱtheyȱareȱusedȱinȱmetabolism
2)
3) Whichȱelementsȱareȱmostȱoftenȱtheȱlimitingȱnutrientsȱforȱplantȱgrowth?
A) carbon,ȱnitrogen,ȱoxygen B) carbon,ȱsodium,ȱchlorine
C) nitrogen,ȱoxygen,ȱhydrogen D) nitrogen,ȱpotassium,ȱphosphorus
3)
4) Micronutrientsȱareȱneededȱinȱveryȱsmallȱamountsȱbecauseȱ________.
A) theyȱplayȱonlyȱaȱminorȱroleȱinȱtheȱgrowthȱandȱhealthȱofȱtheȱplant
B) onlyȱtheȱmostȱactivelyȱgrowingȱregionsȱofȱtheȱplantsȱrequireȱmicronutrients
C) mostȱofȱthemȱareȱmobileȱinȱtheȱplant
D) mostȱserveȱmainlyȱasȱcofactorsȱofȱenzymes
4)
5) Nitrogenȱfixationȱisȱaȱprocessȱthatȱ________.
A) recyclesȱnitrogenȱcompoundsȱfromȱdeadȱandȱdecayingȱmaterials
B) releasesȱnitrateȱfromȱtheȱrockȱsubstrate
C) convertsȱammoniaȱtoȱammonium
D) convertsȱnitrogenȱgasȱintoȱammonia
5)
6) Whyȱisȱnitrogenȱfixationȱanȱessentialȱprocess?
A) Fixedȱnitrogenȱisȱoftenȱtheȱlimitingȱfactorȱinȱplantȱgrowth.
B) Nitrogenȱfixersȱareȱsometimesȱsymbioticȱwithȱlegumes.
C) Nitrogenȱfixationȱcanȱonlyȱbeȱdoneȱbyȱcertainȱprokaryotes.
D) Nitrogenȱfixationȱisȱveryȱexpensiveȱinȱtermsȱofȱmetabolicȱenergy.
6)
7) Whatȱmajorȱbenefitsȱdoȱplantsȱandȱmycorrhizalȱfungiȱreceiveȱfromȱtheirȱsymbioticȱrelationship?
A) Fungiȱreceiveȱphotosyntheticȱproductsȱinȱexchangeȱforȱlivingȱinȱplantȱrootȱnodules.
B) Plantsȱreceiveȱnitrogenȱandȱphosphorus,ȱandȱfungiȱreceiveȱphotosyntheticȱproducts.
C) Plantsȱreceiveȱincreasedȱrootȱsurfaceȱarea,ȱandȱfungiȱreceiveȱdigestiveȱenzymes.
D) Plantsȱreceiveȱenzymes,ȱandȱfungiȱreceiveȱnitrogenȱandȱphosphorus.
7)
8) Carnivorousȱplantsȱhaveȱevolvedȱmechanismsȱthatȱtrapȱandȱdigestȱsmallȱanimals.ȱTheȱproductsȱof
thisȱdigestionȱareȱusedȱtoȱsupplementȱtheȱplantȇsȱsupplyȱofȱ________.
A) energy B) lipidsȱandȱsteroids
C) nitrogenȱandȱotherȱminerals D) carbohydrates
8)
