Presentation on theme: "AS BIOLOGY COURSEWORK SECTION C:- ANALYSIS. PROCESSING DATA CALCULATIONS /remember to show all your working Use the appropriate “RATE” formula Use."— Presentation transcript:
PROCESSING DATA CALCULATIONS /remember to show all your working Use the appropriate “RATE” formula Use the appropriate unit Complete a final table showing “Rate of Reaction V concentration” Include averages if appropriate Be consistent with numbers eg decimal places
DRAWING GRAPHS HOW MANY GRAPHS? 2 1 st GRAPH (use average rates and draw 1 line of best fit) 2 nd GRAPH (plot all your runs, changing symbol for each run) then draw in “ERROR BARS” see model
GRAPH WORK CCHECKLIST TTITLE LLABEL AXES (words and units) AACCURATE SCALE AACCURATE PLOTTING LLINE OF BEST FIT IIDENTIFY ANOMOLIES
WRITTEN ANALYSIS STEP 1 (2marks) DESCRIBE BASIC TREND eg “as the independent variable increases the dependent variable…………” REMEMBER to set in the context of your experiment!!!
WRITTEN ANALYSIS STEP 2 (4marks) DESCRIBE THE TREND IN DETAIL USING GRAPH 1 Split the line up if there is a change Label the sections eg “between points A-B, as the concentration increases from……to……, the rate ………from………. to………” REPEAT for other marked sections.
WRITTEN ANALYSIS STEP 3 (6marks) DESCRIBE ANY CHANGES IN GRADIENT You can calculate the gradient of your sections from the graph
WRITTEN ANALYSIS STEP 4 (6marks) IINTRODUCE SCIENTIFIC TERMINOLOGY / KEY WORDS AND TERMS eg write about your chosen enzyme as a PROTEIN etc write about how it brought about the chemical reaction write about its role as a biological catalyst
WRITTEN ANALYSIS STEP 5 (8marks) EXPLAINING THE SHAPE OF YOUR GRAPH Return to the sections eg A-B; in terms of active sites of enzymes and substrate particles explain why there was a rapid / steady / slow increase in rate as appropriate to YOUR graph REPEAT FOR ANY OTHER MARKED SECTIONS