Question:

  • Define energy as it relates to biological systems
  • Discuss energy transfer and use in biological systems
  • Distinguish (or Compare and contrast) between photosynthesis and cellular respiration
  • Discuss basics of reactions in photosynthesis and cellular respiration
  • List the key molecules and cell organelles involved in photosynthesis and cellular respiration
  • Explain the role of photosynthesis and cellular respiration in energy transfer
  • Discuss how photosynthetic processes in plants adapt to illumination conditions/availability of sunlight/access to sunlight

Answer:

Procedure I – Net Photosynthesis Rates – 100% Illumination

Complete the tables below using your data and information found under the Background tab.  Also see the Summary of Needed Formulas section.

Table 1

Leaf Sample TypeIllumination LevelOxygen Concentration Change Data (ppm)Elapsed Time (s)Oxygen Change Rate (ppm/s)
Sun- Adapted100%21.36 ppm40s0.534 ppm/s