Ib Bio Photosynthesis Dcp

Data: quantitative
The data below is the raw data collected during the lab to test the photosynthetic rate of five different .75% colored bicarbonate solutions.

Time taken for three spinach leaf disks to rise to the top of .75% bicarbonate solution
(measured in minutes)
Uncertainty +/- 10 seconds
Uncertainty +/- 10 seconds

Qualitative:
This data is a record of the physical reactions or visual observations during the lab * Some of the leaf disks are not cut properly * Blue solution is very dark * Red solution is almost clear * Yellow and green look to be right on transparency wise
Averages:
Below is a set of the calculated averages for each colored solution

Color | Average time (minutes) | clear | 8:23 | red | 3:56 | yellow | 4:10 | green | 12:34 | blue | 6:21 |

Standard Deviation
Included in the graph below are the standard deviations for each color, which indicate the spread from the mean. Color | Standard deviation | clear | 1.041139 | red | 2.06425 | yellow | .480541 | green | 5.539233 | blue | 3.119591 |

Range:
In the table below are all the ranges for each set of data Color | Range (minutes) | clear | 3:15 | red | 5:23 | yellow | 1:12 | green | 14:02 | blue | 7:38 |

Graph
Time taken for 3 spinach leaf disks to rise to the top of a 100ml beaker of various colored .75% bicarbonate solutions
Time taken for 3 spinach leaf disks to rise to the top of a 100ml beaker of various colored .75% bicarbonate solutions

Time (minutes)
Time (minutes)
Trials
Trials

Sample calculations Range Mean Standard deviation Calculations completed using TI-83 and Microsoft excel.
Calculations completed using TI-83 and Microsoft