II.PLANT GROWTH AND DEVELOPMENT

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II. PLANT GROWTH AND DEVELOPMENT

• A. Photosynthesis
• 1. Chemical Reaction
• 6 CO2 12 H2O light energy ---gt C6H12O6 6 O2
  6 H2O
• chlorophyll
• enzymes
• minerals
• temperature dependent

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• Leaf structure
• 3. Plant structure
• Shading
• Upper leaves
• Other plants

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B. Respiration

• 1. Chemical Reaction
• C6H12O6 O2 ----gt CO2 H2O ATP
• enzymes
• temp. dependent
• Day and Night

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• 2. Purpose
• Growth
• Cell division
• Mineral absorption
• Translocation
• Protein, growth regulators, DNA etc.

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• C. Transpiration
• 1. Loss of water from leaf
• Leaf stomates

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• 2. Rate
• Environment dependent
• Vapor pressure deficit/relative humidity
• Temperature
• Light intensity
• Available water
• Translocation rate