photosynthesis

• Why is photosynthesis needed

  For plant to grow and survive
• Carbon dioxide + water->(light ontop of arrow) glucose +oxygen

  Photosynthesis equation
• Balanced photosynthesis equation

  6co2 + 6H20 -> C6H12O6 + 6O2
• Photosynthesis equation

  Co2 +H20 -> O2 + C6H12O6
• WHAT IS THE GLUCOSE SYMBOL

  C6H12O6
• Light Is the energy photosynthesis needs for reaction to take place
• What type of reaction is photosynthesis?

  Endothermic- because it requires energy(from sun)
• What can glucose made during photosynthesis used for

  • Respiration
  • Stored as starch for later
• How do plants get carbon dioxide required for photosynthesis?

  It diffuses from air into leaves via stomata
• How do plants get water required for photosynthesis

  It diffuses from soil into root hair cell by osmosi
• What are the uses of glucose

  • Respiration
  • Make cellulose
  • Make starch(store glucose)
  • Make amino acids(make protein)
  • Make lipids
• Whats an exothermic reaction?


  Releases heat
• Light intensity = orig^2 x distance new^2 / distance^2 new
• The rate of photosynthesis is directly proportional to the light intensity until another factor becomes limiting.


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• the concentration of carbon dioxide is increased, the rate of photosynthesis will therefore increase until another factor may become limiting and this is shown by the flattened section of the graph.

  
• At low temperatures, the rate of photosynthesis is limited by the number of collisions between enzymes and substrate. As temperature increases the number of collisions increases, therefore the rate of photosynthesis increases. However, at high temperatures, enzymes are denatured and this will decrease the rate of photosynthesis

  
• Light intensity is inversely proportional 1/distance^2
• As distance between light source and plant increase what decreases?

  Light intensity