2.39: Understand Gas Exchange ( of Carbon Dioxide and Oxygen) in Relation to Respiration and Photosynthesis

AEROBIC RESPIRATION:  Breakdown of Glucose to release Energy in the Presence of Oxygen

EQUATION:

Glucose       +       Oxygen       →       Carbon dioxide       +       Water C6H12O6                      6O2                               6CO2                          H2O

 

GAS EXCHANGE:

• Oxygen is Taken in by Respiring Cells (Mitochondria) and Carbon Dioxide is Produced as Waste Products

PHOTOSYNTHESIS: Conversion of Light Energy from the Sun into Chemical Energy by Chlorophyll such as Glucose, which is then stored as Starch

EQUATION:

Carbon Dioxide       +       Water       →       Glucose       +       Oxygen        6CO2                            H2O                    C6H12O6                   6O2

 

GAS EXCHANGE:

• Carbon Dioxide is Taken in by Photosynthesizing Cells (Chloroplast) and Oxygen is Produced as Waste Products (If not Used for Aerobic Respiration)