Photosynthesis and Limiting Factors

• What is the word equation for photosynthesis?

  Carbon dioxide + water --Light-> glucose + oxygen
• What is the symbol equation for photosynthesis?

  6CO2 + 6H20 --light-> C6H12O6 + 6O2
• What are the five ways plants use glucose?

  • For respiration
  • Making cellulose
  • Making amino acids
  • Storing as oil or fats
  • Storing as starch
• What do plants use cellulose for?

  Making strong plant cell walls
• What do plants use amino acids for?

  Making proteins
• How do plants make amino acids?

  Combining glucose with nitrate ions
• Where do plants store lipids?

  Seeds
• What is another name for fats and oils?

  Lipids
• Where do plants store starch?

  Leaves, stems and roots
• What do plants use starch for?

  Using when no photosynthesis is occuring
• Why is starch better for storing than glucose?

  It is insoluble as a cell with lots of glucose would draw in water and swell up
• Which 3 factors affect photosynthesis?

  • Light intensity
  • Carbon dioxide concentration
  • Temperature
• What is a limiting factor for photosynthesis?

  A factor which stops or slows the rate of photosynthesis