ࡱ> 352 bjbjWW 855 ``r2444444$% "XXmR22V@_iˀ+"Z 0fx#M^##@XXR#` : Name _________________________________ Per. ________ Unit 5: Photosynthesis & Respiration Date: ____________ Lab #14: Photosynthesis and Carbon Dioxide Consumption Elodea and Bromothymol Blue Photosynthesis is the process by which plants take carbon dioxide from the atmosphere, add water, and use the energy of sunlight to produce sugar. Write the equation for photosynthesis: Photosynthesis occurs in the chloroplast, an organelle in plant cells that contains the molecule chlorophyll. Chlorophyll absorbs the energy of sunlight. That light energy is converted to chemical energy through the steps of photosynthesis. The reactions of photosynthesis can be divided into two major types: light-dependent reactions and light-independent reactions. The light-dependent reactions convert energy from the sun into a form that the chloroplast can then use to make sugar from carbon dioxide; in the process producing oxygen as a waste product. The light-independent reactions use that energy to make glucose from carbon dioxide and water. Bromothymol blue is an indicator solution to those used to test for food nutrients. It starts as a blue solution in water, and turns yellow in the presence of carbon dioxide. A small piece of elodea will be introduced to a solution containing bromothymol blue and CO2. The point is to determine whether the elodea will have an affect on CO2 levels. Write a hypothesis about what will happen to CO2 levels in a solution if an aquatic plant is photosynthesizing. If ___________________________________________, then ___________________________________. Materials test tube elodea straw 25 ml bromothymol blue scissors Procedure 1. Obtain a test tube with water and place bromothymol blue from the bottle. 2. GENTLY start bubbling through the straw. A. Describe the color change: _________________________________________________________ 3. Now add a sprig of elodea. Let it sit for the rest of the period. B. Describe any changes that occur: _____________________________________________________ Analysis Questions 1. Bromothymol Blue is an indicator used to detect the presence of _______________________________ gas. 2. During cellular respiration, ____________________ gas is given off and turns the indicator _____________. 3. Why did you initially blow into the solution to turn it yellow?_______________________________________ 4. During the process of _________________________ in plants, the indicator if yellow from respiration will turn back to ____________________ because plants take in _______________ gas to give off ________________ gas. 5. Do you support or reject your hypothesis? What qualitative data did you use to come to your conclusion? &:;yz{} ~     ( ööæ聯ӗӆxgVg h#qh)M5CJOJQJ^JaJ h#qhtCJOJQJ^JaJh#qCJOJQJ^JaJ h#qh CJOJQJ^JaJh#qh CJOJQJaJh#qht5CJOJQJaJh?5CJOJQJaJh#qh#q5CJOJQJaJh#qh)M5CJOJQJaJh#q5CJOJQJaJh#qh)M55CJOJQJaJ;z{ ~   | } GQrr`gd#qdhgd?gd)M5`gd gd $a$gd $a$gd)M5( ) q r | } *0FGQ[]_gnr˺˜˜˜ˍ}qbqbqbqSbh#qh|#CJOJQJaJh#qh)M5CJOJQJaJh#qCJOJQJaJh#qh)M5>*CJOJQJaJh#qh CJOJQJaJh#qCJOJQJ^JaJh#qh)M5CJH*OJQJaJ h#qh)M5CJOJQJ^JaJ h#qh CJOJQJ^JaJ h#qhtCJOJQJ^JaJ#h#qhtCJH*OJQJ^JaJt%)7=>efDԹőŹŹŹŹ h#qh CJOJQJ^JaJh?>*CJOJQJaJh#qh?CJOJQJaJh CJOJQJaJh?CJOJQJaJh#qhtCJOJQJaJh#qCJOJQJaJh#qh)M5CJOJQJaJh#qht>*CJOJQJaJr&fAgd?dh^`gd?gd)M5dhgd?6&P1F:p)M5/ =!"#$% ^ 666666666vvvvvvvvv666666>6666666666666666666666666666666666666666666666666hH6666666666666666666666666666666666666666666666666666666666666666662 0@P`p2( 0@P`p 0@P`p 0@P`p 0@P`p 0@P`p 0@P`p8XV~_HmH nH sH tH @`@ NormalCJ_HaJmH sH tH DA D Default Paragraph FontViV  Table Normal :V 44 la (k (No List L^@L Normal (Web)dd[$\$ B*phF>@F Title$a$5CJ OJQJ\^JaJ$H@H ? Balloon TextCJOJQJ^JaJPK![Content_Types].xmlN0EH-J@%ǎǢ|ș$زULTB l,3;rØJB+$G]7O٭V$ !)O^rC$y@/yH*񄴽)޵߻UDb`}"qۋJחX^)I`nEp)liV[]1M<OP6r=zgbIguSebORD۫qu gZo~ٺlAplxpT0+[}`jzAV2Fi@qv֬5\|ʜ̭NleXdsjcs7f W+Ն7`g ȘJj|h(KD- dXiJ؇(x$( :;˹! I_TS 1?E??ZBΪmU/?~xY'y5g&΋/ɋ>GMGeD3Vq%'#q$8K)fw9:ĵ x}rxwr:\TZaG*y8IjbRc|XŻǿI u3KGnD1NIBs RuK>V.EL+M2#'fi ~V vl{u8zH *:(W☕ ~JTe\O*tHGHY}KNP*ݾ˦TѼ9/#A7qZ$*c?qUnwN%Oi4 =3N)cbJ uV4(Tn 7_?m-ٛ{UBwznʜ"Z xJZp; {/<P;,)''KQk5qpN8KGbe Sd̛\17 pa>SR! 3K4'+rzQ TTIIvt]Kc⫲K#v5+|D~O@%\w_nN[L9KqgVhn R!y+Un;*&/HrT >>\ t=.Tġ S; Z~!P9giCڧ!# B,;X=ۻ,I2UWV9$lk=Aj;{AP79|s*Y;̠[MCۿhf]o{oY=1kyVV5E8Vk+֜\80X4D)!!?*|fv u"xA@T_q64)kڬuV7 t '%;i9s9x,ڎ-45xd8?ǘd/Y|t &LILJ`& -Gt/PK! ѐ'theme/theme/_rels/themeManager.xml.relsM 0wooӺ&݈Э5 6?$Q ,.aic21h:qm@RN;d`o7gK(M&$R(.1r'JЊT8V"AȻHu}|$b{P8g/]QAsم(#L[PK-![Content_Types].xmlPK-!֧6 0_rels/.relsPK-!kytheme/theme/themeManager.xmlPK-!0C)theme/theme/theme1.xmlPK-! ѐ' theme/theme/_rels/themeManager.xml.relsPK] (  r 8@0(  B S  ?)x)4 QU= ? 33pp)f D pp)f D ,cck4 >wZX^`o(.^`.pLp^p`L.@ @ ^@ `.^`.L^`L.^`.^`.PLP^P`L.^`o(. ^`hH. pLp^p`LhH. @ @ ^@ `hH. ^`hH. L^`LhH. ^`hH. ^`hH. PLP^P`LhH.^`o(. ^`hH. pLp^p`LhH. @ @ ^@ `hH. ^`hH. L^`LhH. ^`hH. ^`hH. PLP^P`LhH.,cckw                             |#)M5}>*Y#qs? tcb @ @UnknownG*Ax Times New Roman5Symbol3. *Cx ArialCNComic Sans MS5. .[`)TahomaACambria Math"qh*&*&@Bf  !x24 3QHP?)M52!xx /Photosynthesis Lab - Elodea and Bromthymol BluekambriaLindsey M. Daniel   Oh+'0x  ( 4 @ LX`hp0Photosynthesis Lab - Elodea and Bromthymol BluekambriaNormalLindsey M. Daniel2Microsoft Office Word@G@Dז@BjTˀ@BjTˀ ՜.+,00 hp  Dell Computer Corporation  1Photosynthesis Lab - Elodea and Bromthymol Blue Title  !#$%&'()+,-./014Root Entry Fcsiˀ61Table#WordDocument8SummaryInformation("DocumentSummaryInformation8*CompObjr  F Microsoft Word 97-2003 Document MSWordDocWord.Document.89q