1 / 3

AP LAB 12

AP LAB 12. Part A – Effect of Temperature on DO (dO 2 ) % Saturation. AP LAB 12. Part B - Effect of Light Availability on DO Primary Productivity Rate of photosynthesis Chlorella sp. Set-up Initial Dark Varying number of screens Calculations Respiration I – D Net Productivity

eshana
Download Presentation

AP LAB 12

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. AP LAB 12 • Part A – Effect of Temperature on DO (dO2) • % Saturation

  2. AP LAB 12 • Part B - Effect of Light Availability on DO • Primary Productivity • Rate of photosynthesis • Chlorella sp. • Set-up • Initial • Dark • Varying number of screens • Calculations • Respiration • I – D • Net Productivity • L – I • Gross Productivity • Net Productivity + Respiration • (L – I) + (I – D) = L - D

  3. AP LAB 12, cont • Winkler Method • Measures the amount of I2 in solution → proportional to O2 • Fixation Step • O2 oxidizes Mn(OH)2 • Sulfamic acid is added to fix the reaction, form I2 • Titration Step • Starch is used as an indicator to quantify the concentration of I2

More Related