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See the data and answer this question in your own words. Step by step and explain. In this lab we used CO2 sensor placed in respiration chamber.
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- Table 2 This table is for gathering data on the effects of temperature, light, or seed type on respiration. 0 5 10 15 20 25 Total time (min) Respirometer 1 Volume of Water (ml) 0.000ml 0.180ml 0.200ml 0.300ml 0.315ml 0.350ml Respirometer 2 Volume of Water (ml) 0.000ml 0.020ml 0.020ml 0.000ml 0.000ml 0.000ml Respirometer 3 Volume of Water (ml) 0.000ml 0.100ml 0.100ml 0.150ml 0.200ml 0.250ml Respirometer 4 Volume of Water (ml) 0.000ml 0.030ml 0.050ml 0.000ml 0.000ml 0.000ml Graphing Create a graph to compare the rate of respiration of the respirometers 2 and 4 in Table 2 of your investigation. The graph should show the change in the volume versus time. This represents the rate of respiration. Be sure to include a graph title and properly label your x- and y-axes, including units.What is the published generation time (otherwise known as doubling time) for Escherichia coli? How does the documented time compare to the generation time you calculated from your growth curve with this organism? If significantly different, what factors might have contributed to the difference?Uninoculated "controls" for each medium should score 0 (zero) in their respective tubes. Explain the importance of this affirmation 9, x10
- Under controlled conditions, a transpiration experiment was conducted using two different plant species, A and B. Each plant species was exposed to a low-humidity environment and a high-humidity environment with all other conditions kept the same. The transpiration rate was measured over a period of one hour. The data was graphed as shown below. A B transpiration rate (pl/cm²min) с 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 A bar graph of the transpiration rates of two plants under different humid conditions D 0.04 0.02 low humidity 40% In order to see the effect the change in humidity had on the transpiration rate, what would be a proper con trol to add to the study? high humidity 80% running the same experiment multiple times to collect additional data adding more water to the original plants and running the experiment again grow another set of plants at normal humidity growing more plants at 0% and 100% humidity Species A Species BA comparison of transpiration rates from C3 & CAM explants in a potometer 0.9 0.8 0.7 0.6 0.5 C3 0.4 CAM 0.3 0.2 0.1 10 20 30 40 50 60 70 -0.1 Imagine you are reviewing a research paper for a scientific journal. Criticise the figure below. Briefly identify formatting/design/presentation errors in the (bullet points/list is acceptable) and state what information you think needs to be supplied in a figure caption to accompany it (use sentences for this part).Under controlled conditions, a transpiration experiment was conducted using two different plant species, A and B. Each plant species was exposed to a low-humidity environment and a high-humidity environment with all other conditions kept the same. The transpiration rate was measured over a period of one hour. The data was graphed as shown below. A B transpiration rate (pl/cm²min) с 0.2 0.18 0.16 0.14 0.12 0.1 A bar graph of the transpiration rates of two plants under different humidity conditions What is the independent variable in the experiment? D 0.08 0.06 0.04 0.02 low humidity 40% the type of soll each plant was grown in the amount of water lost the humidity the plants are grown in high humidity 80% the amount of water given to each plant Species A Species B
- + f2 portal.bartleby.com Chapter 16 Special... i Anubhav Goud 072 95% 47 min 06 secs 19/20 > >> Which of the following statements are correct about nodule formation by Rhizobium species? P. Nodule formation requires participation of both plant's nodulin genes and rhizobial nodulation genes Q. Nod factors synthesized by nodulation genes are lipochitin oligosaccharides R. Infection thread forms during nodule formation is an internal tubular extension of the plasma membrane that is produced by the fusion of Golgi-derived membrane vesicles S. Nodule formation in non-leguminous plants is mainly mediated by Rhizobium species OP, Q, R and S OP, Q and R OP. R and S P and Q compre f7 ▶I Anatomy Chapter 1.... Next f4 101 fs fo f10 fix 19b. View the images of the Test 4 chromatography results and record the colors of the pigments produced for each of the 4 plant species in the appropriate column . Record the colors in the data table below. Test 4 – Paper Chromatography to Separate Plant Pigments "Spof your chromatography papar and label it wth a penci. Ispecies Botana Curus Y Colors found Green, blue, red N%OM pH EC Ca2+ Mg2+ K+ Na+ Al3+ H+ % dS/m cmolc/kg soil cmolc/kg soil cmolc/kg soil cmolc/kg soil cmolc/kg soil cmolc/kg soil 2.7% 7.6 4.5 19 13 10 3 1 4 Is this soil affected? If so, what type? - saline - sodic - not salt affected - saline-sodic
- Chimeln - Lecture 8 Feb 10/14 Folder Settings + Add Question MULTIPLE CHOICE When plants are fertilized with sufficient amounts of ammonium which of the followin correct. A. Plant will use less energy synthesizing N-containing compounds than they would if r N source. B. Plant will decrease the use of other forms of N C. Nitrate reductase and nitrite reductase activity will be low D. All of the above E. None of the above MULTIPLE CHOICE Plants only signal their identity when bacteria that can establish an N-fixing symbiosis their roots. A. True B. FalseTable 3-Determination Tube # Potato Expt. Temp. 2c 3c 4c 5c extract (mL) 2 2 2 2 room temp 20 °C 40 °C 75 °C of the optimum temperature of catechol oxidase enzyme. 1st Absorbance 0 min. at Expt. Temp. Boiling 100 °C dH₂O Catechol (mL) (mL) 0 0 0 0 13 13 13 13 Start Time: 4:20 Absorbance: 0.072 Start Time: 4:25 Absorbance: 0.114 Start Time: Absorbance: 25 0.132 Start Time: 4:27 Absorbance: 0.097 2nd Absorbance after 10 min. in Expt Temp. Time for reading: 4:30 Absorbance: 0.128 Time for reading: 4:33 Absorbance: 0.036 0-137 Time for reading: 4:35 Absorbance: Subtract 1st from 2nd absorbance 0.193 Time for reading: 4:37 Absorbance: 0-126 0.023 0.061 0.029 Based on the data from Table 2 answer these questions: Q10) What is the enzyme's optimum temperature? Answer: Q11) Use the difference between 2nd and 1st absorbance to support your conclusion for the optimum temperature 3rd Absorbance after 10 more min. at Room Temp. Time for reading: 4:40 Absorbance: 0.159 Time for reading: 4:43…Answer the following questions. Why is 80% ethyl alcohol is considered as the solvent of choice during phytochemical screening? What are the different types of extraction? Differentiate each. Differentiate Primary versus Secondary Metabolites and give examples. How are flowers, fruits and seeds dried? Explain why flowers requires greater care in drying.