Outline the role of accessory pigments in the light-dependent reactions.
Photosynthetic pigments are organised into photosystems. There are two photosystems, PSI and PSII. PSI is involved in cyclic photophosphorylation but PSII is not. Outline the differences between cyclic and non-cyclic photophosphorylation.
The rate of photosynthesis is influenced by several environmental factors. Fig. 8.1 shows how temperature affects the rate of photosynthesis.
Explain why the rate of photosynthesis plateaus at $30\,^{\circ}\text{C}$.
On Fig. 8.1 extend the curve to show what would happen to the rate of photosynthesis if the temperature were increased to $70\,^{\circ}\text{C}$.
Explain the reason for extending the curve like this.
A palisade mesophyll cell is adapted for photosynthesis. The table below gives some adaptations of a palisade mesophyll cell. Complete the table to show how these adaptations assist the cell in photosynthesis.