Scoring for Lab 4: Screen shot – 10 points Activity Data Code – 5 points Data Tables – 15 points Question Completion – 20 points Random Questions Scored – 50 points · On your own and without...

Its a lab work


Scoring for Lab 4: Screen shot – 10 points Activity Data Code – 5 points Data Tables – 15 points Question Completion – 20 points Random Questions Scored – 50 points  · On your own and without assistance, complete this Lab Activity Form electronically and submit it via the Assignments Folder by the date listed in the Course Schedule (under Syllabus). · Answer ALL questions in your own words. If a direct quote is needed, put the words in quotation marks and cite the source. · To conduct the laboratory exercises, use the Table Top Science link located under Course Content. Read the background information and the directions for each exercise/experiment carefully before completing the exercises/experiments and answering the questions. · Students should submit the document as a Word (.doc or .docx) or PDF file to the assignment folder for best compatibility. · If screen shots are missing, the lab earns 0 points until it is included. Data Sheet: Activity - Enzymes All Content is Copyright Protected and May NOT Be Posted or Shared Outside Of The Classroom Name Course Date Activity Data Code       Take a screenshot of your results. Insert the picture here: Procedure I - Enzyme Rates - Concentration Dependence Complete the tables below using your data and information found under the Background tab (see the Summary of Needed Formulas section) Rate= Change = ppt Time Interval s 2 TableTop Science – All Rights Reserved 1 TableTop Science – All Rights Reserved Note: ppt stands for parts-per-thousand and is a unit for measuring concentration. Trial Concentration Level of Enzyme Oxygen Concentration Change Data (ppt) Elapsed Time (s) Enzyme Rate (ppt/s) 1 2.5% 20.0 2 5.0% 20.0 3 10% 20.0 Observations and Questions [1] Sample Calculation: Show your enzyme rate calculation for Trial 1. SHOW YOUR WORK [2] Convert enzyme concentrations of 2%, 6.5%, and 15% to ppt units. A. 2.0% = ______ ppt B. 6.5% = ______ ppt C.15.0% = _____ ppt [3] For Procedure I/Table I, identify: A. Dependent variable: B. Independent variable: C. 2 or more Controlled variables: [4] Draw a line graph of the independent variable on the x-axis (abscissa) and the dependent variable on the y-axis (ordinate). Label the axis, units, and provide an appropriate title. Procedure II - Enzyme Rates - Temperature Dependence Complete the tables below using your data and information found under the Background tab (see the Summary of Needed Formulas section) Rate= Change = ppt Time Interval s 2 TableTop Science – All Rights Reserved 3 TableTop Science – All Rights Reserved Note: ppt stands for parts-per-thousand and is a unit for measuring concentration. 2 TableTop Science – All Rights Reserved 3 TableTop Science – All Rights Reserved Trial Temperature of Enzyme (C) Oxygen Concentration Change Data (ppt) Elapsed Time (s) Enzyme Rate (ppt/s) 1 20.0 20.0 2 30.0 20.0 3 55.0 20.0 Observations and Questions [5] Sample Calculation: Show your enzyme rate calculation for Trial 1. SHOW YOUR WORK [6] Using the data you reported in the Table above, describe the effect of temperature on the reaction rate. Procedure III - Enzyme Rates - pH Dependence Complete the table below using your data and information found under the Background tab (see the Summary of Needed Formulas section) Rate= Change = ppt Time Interval s Note: ppt stands for parts-per-thousand and is a unit for measuring concentration. Trial pH Level of Enzyme Oxygen Concentration Change Data (ppt) Elapsed Time (s) Enzyme Rate (ppt/s) 1 6.0 20.0 2 7.0 20.0 3 9.0 20.0 Observations and Questions [7] Sample Calculation: Show your enzyme rate calculation for Trial 1. SHOW YOUR WORK [8] Draw a line graph for Procedures II and III. Label the axis, units, and provide an appropriate title. Plot the data for each Procedure on a separate plot. [9] Compare the plot of the data for Procedures I, II, and III. Describe the differences among the three plots. [10] What conclusions can be drawn about the effects of concentration, temperature and pH on the reaction rate after comparing the plots from the three different Procedures? [11] Choose one of the factors that impacts reaction rate (concentration, temperature, or pH) and, in your own words, provide a plausible biological explanation for your experimental results for that factor. Factor Chosen: Explanation: 4 TableTop Science – All Rights Reserved 5 TableTop Science – All Rights Reserved