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The purpose of the activities is to help you review material you have already studied in class or have read in your text. Some of the material will extend your knowledge beyond your classwork or textbook reading. At the end of each activity, you can assess your progress through a Self-Quiz.
To begin, click on an activity title.
Lab 2 Enzyme Catalysis
Mitosis and Meiosis
Plant Pigments and Photosynthesis
6-I Bacterial Transformation
6-II DNA Electrophoresis
Genetics of Organisms
Population Genetics and Evolution
10-I Cardiovascular Fitness
10-II Heart Rate in Daphnia
Biomembranes I: Membrane Structure and Transport
Biomembranes II: Membrane Dynamics and Communication
Cardiovascular System I: The Beating Heart
Cardiovascular System II: The Vascular Highway
Cell Structure and Function
DNA Structure and Replication
From Gene to Protein: Transcription
From Gene to Protein: Translation (Protein Synthesis)
Plant Structure and Growth
Properties of Biomolecules
Restriction Enzyme Digestion of DNA
The lac Operon in E. coli
Measuring Primary Productivity
How can primary productivity be measured in an aquatic ecosystem? To answer this question, you must first recall the equation for photosynthesis. Type the equation here.
The equation for photosynthesis is:
Note: Because this lab focuses on dissolved O2, we don't include CO2 in our discussions. However, don't forget that CO2 plays a major role in both photosynthesis and cellular respiration.
Primary productivity can be measured in three ways:
- The amount of carbon dioxide used
- The rate of sugar formation
- The rate of oxygen production
In this laboratory, we will use the third method, the rate of oxygen production. Do you understand why this measurement will reveal primary productivity? If you aren't sure, look again at the definition of primary productivity and the equation for photosynthesis.