3060 spring06 exam3

3060 spring06 exam3 - R W 4 ‘1 PLANT PHYSIOLOGY 3060 Name...

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Unformatted text preview: / R! W; 4 ., ‘1! PLANT PHYSIOLOGY 3060 Name r l - .- L A EXAM 3 - MAKEUP I” ". C: j), ’Read each question carefully before answering. Questions on a single topic may contain more than one part. You are responsibie for answering all parts of each question. Write clearly with proper spelling and grammar. You may continue answers on the back of individual pages but the if - locations must be clearly marked. ,4 A H‘. m _> - 1. (10 pts) Give the word or phrase that best fits the following descriptions: 9 "n" f‘ 9: 15‘. Product of fermentation in plant cells. "' “/4ng :‘ 3. Specific location of nitrate reductase in a plant cell.. (“‘35: '2 L14: 0. A unique feature of plant respiration (relative to animal cells). five “: 14'2'315 D. Linoleic acid is termed an 18:2 fatty acid. 2 refers to the number ofm. ”1.1941“ " -u {l “E; Three-carbon product of glycolysis. m \K I Location of the highest proton concentration (lowest pH) in a normal, ‘\ functioning mitochondrion. .. ‘9 '79:" @416“ 1" Ask Cyanide is a poison to animal cells because it blocks ____. i 3 ti_/ Number of carbon atoms in a sesquiterpene. _~>_'.Lu_ 11/ Primary form of sulfur absorbed by the roots of higher plants. 51'. Example of programmed cell death in plants. For the following five questiom circle mg letter for the best answer. Each question is worth 2 points. (3/ «Li—"‘4“ \\;\~% N 3% 2. An organism that produces nitrogenase is I > . _ a. 60mins max, a legume ‘h. (emafhus sp, a woody shrub c. Sparrtho alremiv'flora, a salt marsh grass @mbena so, a cyanobacterium e. Azolla sp, a water fern Plant Physiology - Exam 3 Page 2 3. 4. 5. 6. 7. A sulfur containing amino acid found in proteins of all organisms. a. glycine b.t to hem .p eny anine e.aspartate An hydrophobic compound that blocks water l'mvemen‘l' in the wall space of the root endoder'mis. a. cutin b. sucrose c. glutamate (1. rubber A class of compounds that include the alkaloids. a. cutin ,-- 'b. nitrogen-containinggeoondag compounds '77:. t’fotty acids ciphenolics e. terpenes Reduces the availability of nitrogen to plants. a. volatilization of ammonia b. incorporation of ammonium ions into insoluble particles c. lead; '1: of nitrate ions into waterways and oceans e. none o the above {0 . (fpts) Plant cells commonly oxidize sucrose molecules for energy. ((1) Besides sucrose, what other inputs and what outputs are found in the metabolism of a molecule of sucrose in glycolysis (also indicate the proper numbers of these input and output molecules)? (b) Again, starting with a molecule of sucrose, what would the inputs and outputs for the citric acid cycle? “j n: i" 0} iffi.‘r‘_\".s‘ If )4: :39; _ .1775 — ' . - 4 s f‘ _‘ SEC-(996 - m D? J,/'\,". ”:3 .- _ 641%.15 l I . _ , if "7 r _;_ J r» :1 B -n :x : ' e.‘ . . (x - ‘ “\i 1 ‘ -_ : _\ will? '“ ' . ~ch {2 _ x '7': g _ ‘15 P - ‘- , i Plum Physiology - Exam 3 Page 3 8. (12 pfs) Starting with a molecule or molecules in The following figure, show how the following classes of molecules can be synfhesized: nucleofides, lipids, aromatic (ringed) amino acids: an amino acid Thu? lacks a ringed s’rrucfure: cellulose. Show important “ intermediafes. nudge-#855 if; id 5' CU—gmafi L. '“i ”‘7 (L: H u ic$f 1’ l K \ " V‘V'M‘ank K} .'\ I \ a», I. . _ \l _ V l i ,i ~> Melon ¢ k isoci'l‘m‘lc Fumm're ¢ R a Oxoglu‘l'ora‘ra _ ._ Succina‘l'e K a Ila-S33 Plant Physiology - Exam 3 Page 4 transport resulT in the production of ATP? ' " - - 1 L‘ A». ,. . ‘-‘. , ‘fi -- 4i \ JLNgC fit-”5.”: n w! '* 1' n “W "K V 5 . N1 L' E:<ZL.:i“HC'P\c' p: rm? 4+5- Wm; ”0-: .fl " 3 . (5 F"-.:-;_-*nn='n+ 3 * g3 ’71 ‘1’,“ """‘r_'.i ._I "’\ Kinda: . ' Lfluus __.r. - ‘ A- I .p-\ LL‘K.‘ \ A .— l I] 4r j: ‘ \ — \ 1 l, _-3 F 545 5‘? P I “a“.tc‘cA, RT; m: (1*; \L\_/: ‘ :mw’k K 4': H: t' '3 {I -‘ ‘ H '3 . r'bhdgc . “a pas) 71,. 11$ \g 13¢,L; S 4-”,“5‘1, mj fl“: 5 $9,“: 946’ ,3 Che; rd 1-. Lam ~55 ermediafes and locations of reacfions in your description. I {3 37:.” +5 A Fmrc’“; (.qmig +r~’\EI\'§‘ 0F{S f‘h rec-Jugf Mud If . , . ”19'”:- fqgr? 5/ finxm CH0}. f-U'hér" 'qfiéCi‘na‘ - A L 3"“, SLrn-pfcwar, é- 5c),- Acrux A,“ shun: :u‘ an s:g.d1§ fl. {km-’1 Plant Physiology — Exam 3 Page 5 11. (6 pts) In the xylem of the root-shoot junction of a broad bean punt, 837.: of the nitrogen containing molecules are amino acids and amides and 17% are nitrate ions. (a) In plants, what is the product of nitrate assimilation? (b) What are the steps involved in nitrate assimilation in the plant? (c) Where in a plant cell do these steps occur? (d) In what part of the broad bean plant would nitrate assimilation predominantly occur? Why? 12. (8 pts) Three key molecules involved in ammonium assimilation are glutamine, glutamate and 2—oxoglutarate. (a) In relation to ammonium assimilation, how do these molecules differ from one another? (b) What are the reactions in ammonium assimilation that involve these three molecxlles? (c)CWhere in a plant cell do these reactions occur? ‘3 IE dammi :3 5’: H I 3 IU‘FA M: i'\ d ,L—r g n t I l a - . , _ .‘ : ‘ ‘ - -\‘ i a " ""14 ~.,. '; ’ [fwd $05“: .t r. “ I“ large“; a q 1,_ ,- "I‘ an ' a) If. -‘ 1.} M) r/..J\ J. ‘ J‘x‘f J fgr A f. J M ..‘ -\‘ _ J‘s-1 . i 7 - .4 . . I , ‘ -,- ‘ ._ i 7. \i' p ‘ "_ ”in; 1‘ \' I 1 t. H .1. I" -‘ v- -- " 1 ix . 7 - ”7%: A aw .-: Labs; {51 7‘ 3n! s-‘VVVH ”“7 9/“ ilk-13 "1’5 5' .4 - 7/ L . _. L“ -' , , _ n ' “L. L“ ‘55: (7'7" Lip“— (\l{ t r 9,“ c? [u Farm i A 45—, / J, r :\ RR‘ x if K k" I Plant Physiology - Exam 3 Page 6 I?) 13. (Xpts) Among secondary plant metabolites produced by plants are cymogenic glycosides .- and non-protein amino acids. (a) What defines a secondary plant metabolite? (b) What is the general function of cyanogenic glycosides and non-protein amino acids? (c) Relative to this function, how do cyanogenic glycosides work oral-low do non-protein amino acids work? ( (ANSWERONLYONEFORPARTC) _\ j“ “I - . " V v . ,2 “ 1‘“ _ . . ‘ ‘g I. .. . . . _, l . C; ‘3 Ave Cs 9.7-.»pr Mgr; 1.3. ~90 gigglyk Prcrlulcél cult-54": _l- W.” A»: lateral) to > I ‘l . TL "L+'L"f\ in fife-’JWLLJ exHr‘acek'g-AJN u» FF'L—‘lf‘:g"e/\' C'Wc’Mrcr-clly how? {\I‘ Cu‘cwuc‘l‘ice 5““? _,'L\<l (K hydrant/yr! ff’c‘lp’ - N ., r f) sari" a: ~ \ vol—W r: l ‘* ezww‘rmW—sti; u “ ‘wf +\ - I x L‘ \ "a {a , 5”“; '5715 :‘\ "m. " C“ L— L; L “C 4 — \4 .’.r r 2f. L il . I 1.! l ( Z l ‘ ‘ i v ( v—l i Q A ’L ‘ Tl ‘t ' ,_ . .1 , L ., “L — i , v l‘ L—x .L; , l i. . v - l a g k ' l‘ , cm 7H ' 14. ()6 pts) Evolution in plants has resulted in the development of a general defense system . a _ against plant pathogens. (a) What classes of organisms are considered plant pathogens? *‘. i ' (b) How do plant cells ‘recognize" the presence of pathogens? (c) What are two types of cellular changes that are triggered by recognition of the presence of a plant pathogen? (d) These cellular responses in 'c‘ activate systemic acquired resistance (among other things). What is systemic acquired raistance? c ' L, .7 I l ,. ‘- ) sf 4 3" 1 , ‘ Eff-(Lgy’ SL \ ,_ 1 . \4 , :3 1’5 .7 W »‘ ‘ i u ”l l -. | . . '3‘- Li:\ Ll. l r- “M“ '- were « ,1 (2': *= '- " _ r“ i {I I ,. .___ H, H74 ,_ ( t k... Lghltl.‘ CLLV Efrain-‘1 (In-{HJ’HH‘ '1 “' , .1 I, ,. , \ K _‘ . D L ‘ .. i‘ I " ,- , i. l". , ."- “"e ‘ ’ x. " a. 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