Question

(a) State the balanced symbol equation for photosynthesis.
       ……………………………………………………………………………………………………………………………
(b) Photosynthesis is an enzyme-controlled reaction.
       Fig. 4.1 is a graph showing the effect of temperature on the rate of photosynthesis.

      Complete the sentences to describe and explain the graph in Fig. 4.1.
       As the temperature increases, the rate of photosynthesis increases until it reaches the optimum temperature of ………………………………………….. °C.
       The rate increases because the particles gain more ………………………………………….. energy causing more ………………………………………….. collisions.
       At 45°C the enzymes are ………………………………………….. .
      Photosynthesis stops because the ………………………………………….. of the enzyme has changed shape so the substrate can no longer fit.
(c) Complete the sentence to describe the transfer of energy during photosynthesis.
      During photosynthesis chlorophyll transfers ………………………………………….. energy into ………………………………………….. energy.
(d) Carbohydrates are produced during photosynthesis.
      State the name of the carbohydrate in plants that is used for:
      storage ……………………………………………………………………………………………………………………..
      transport. …………………………………………………………………………………………………………………..
(e) Plants cells are adapted for their function.
       State the name of the cells:
       in the leaf that are adapted for efficient photosynthesis
        …………………………………………………………………………………………………………………………………
       that are adapted for absorption of water from the soil.
        …………………………………………………………………………………………………………………………………