Flowering Plants

• Photosynthesis happens in the chloroplasts of leaf cells, converting light energy into chemical energy; carbon dioxide and water to glucose and oxygen
• Word equation:

  Carbon dioxide + water —> glucose + oxygen

  symbol equation:

  6CO2 + 6H2O —> C6H12O6 + 6O2
• Factors that affect the rate of photosynthesis are called limiting factors:

  • water
  • light intensity
  • CO2
  • temperature
• Photosynthesis takes place in the chloroplasts in the palisade cells mainly, at the top of the leaf. This allows for the most amount of light to be absorbed
• Nitrates are required for the formation of amino acids and proteins for cell growth. The deficiency signs are poor growth and pale or yellow leaves
• Phosphates are required for respiration, growth, photosynthesis, making DNA, and making cell membranes. The deficiency signs are poor growth and discoloured leaves
• Magnesium is needed for photosynthesis. The deficiency signs are yellow leaves between veins
• Potassium is needed for respiration and photosynthesis. The deficiency signs are poor flower and fruit growth, poor immunity, spotted or streaky leaves