I am trying to figure out these four things. What is the independent variable, what is the dependent variable, what are the controlled variables and why this experiment doesn’t use a control.
Q: What is/are the independent variable/s? What is the dependent variable? What is/are the control/s?
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Q: Help Solve first 3 questions with provided information What is the independent variable(s)?…
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- Match the number of the label in the diagram (below) with the appropriate site or structure from the list that follows. e Ca e dependet aon water-piting comples plasticyanin label 1 label 3 e label 5 g label 7 a b label 2 d label 4 f label 6 81. stroma 82. photosystem I 83. photosystem II 84. thylakoid lumen 85. electron transport 86. cytochrome complex 87. ATP synthaseIn a photosynthetic investigation, a student measured the following pH of the stroma and the inner thylakoid compartments of spinach leaf cells at the conclusion of the experiment. Source of Fluid pH (mean) Standard Error of Mean (SEM) Stroma 8.2 0.75 Inner compartment of thylakoid 5.6 0.35 Describe the stages of photosynthesis. Explain the need for a constant supply of inorganic carbon dioxide.Given the chromatogram of the spinach leaves extract in a normal phase from the experiment you conducted, arrange the components from least polar to most polar. O Carotene, Xanthrophyll, Chlorophyll A, ChlorophyllI B O Chlorophyll B, Chlorophyll A, Carotene, Xanthrophyll O Chlorophyll A, Chlorophyll B, Xanthrophyll, Carotene O Carotene, Xanthrophyll, Chlorophyll B, Chlorophyll A
- Light Leaf B Leaf A Black cloth КОН Water solution Take a close look at the apparatus, it is set up to investigate factors that affect the rate of photosynthesis. KOH solution is similar to sodium hydroxide. The plant was placed in the light for 24hrs in the state that is seen. Following 24 hours leaf A and B were tested for starch. Explain what results we would expect to see and why?In the biosynthesis of heme, ring cyclization, isomerization, and decarboxylation reactions take place. Identify the potential intermediates and show the electron flow in the following diagram. HO,C R1 HO2C- -R2 NH HN- но- NH HN- HO2C R R2 unstable intermediate Uro'gen II HO2C Me Me NH HN- -CO2H HN NH Me Me HO2C CO2H Coproporphyrinogen IIPhenol red reaction is orange on maple leaf, is it alive?
- Scheme 1: CH3 HNO,/ H,SO, NaOCI CH, HO, CH,OH / H* NO, HNO, / H,SO, NaOC1 OCH HNO,7 H,SO, он но NO2 NO2 CH,OH / H* OCH 3 CH,OH/H* NO2 1. You decide to perform step three of the green pathway first. You start with 1.81 g of the starting material. After the reaction is complete, you weigh 1.18 g of the product, which is a dry solid. What is the percent yield for the third step of the green pathway? Show all of your work!hhmi BloInteractive Photosynthesis a) Label PSI and PSII. b) Draw the path of the electron transport chain. Diagram 6 Q Search O CU M Table 1: Descriptions of the steps in the light reactions. What is happening with matter? Structure PSIL L ( Ji E C The Events of the Light Reactions For PSII, the cytochrome complex, and PSI, draw and label what happens at that structure on Diagram 6. Then describe the events in a bulleted list in Table 1. Animations Student Worksheet Thylakold stroma Thylakoid lumen What is happening with energy? 40Identify the chemical basis for ApH and AY across the chloroplast thylakoid membrane by dragging the descriptions to their targets. Be sure to notice that the upper arrow iindicates ApH and the lower arrow indicates ΔΨ. ATP synthase complex H+ N ADP + P₁ Light energy ATP H*N Photosystem I/II- Chloroplast N side Aus PN ApH T + Thylakoid membrane HTp H+p Lumen Stroma P side Proton circuit A B High H concentration Low positive charge High positive charge Low H+ concentration Within the image, identify the types of proton translocation by dragging each label to its target. O XH₂ 2H+ + Z 2 H* ZH₂ O XH₂ Z 2H+ ZH₂ 2H+ C A B Proton pump Redox loop
- A culture of the single celled organism Chlamydomonas is actively carrying out photosynthesis in the presence of light and CO2. If you turned off the light, how would you expect the amounts of ribulose 1,5-bisphosphate and 3-phosphoglycerate to change over the next minute? How about if you left the light on and removed the CO2?A team of researchers investigated the effects of phosphorous availability and light intensity on an angiosperm species. Seeds of the angiosperm were divided into four equal groups. Groups 1 and 2 were exposed to 200 µmol, and Groups 3 and 4 were exposed to 500 µmol. Groups 2 and 4 also received a phosphorous (P) solution. After 20 days, all plants were weighed, and the average dry weight of each group was calculated. The results are in the table below. Group Group Group Group 1(200 |2(200 l3 (500|4 (500.In a photosynthetic investigation, a student measured the following pH of the stroma and the inner thylakoid compartments of spinach leaf cells at the conclusion of the experiment. Source of Fluid pH (mean) Standard Error of Mean (SEM) Stroma 8.2 0.75 Inner compartment of thylakoid 5.6 0.35 Explain the reason for the differences in pH between the stroma and the thylakoid lumen.