(a)[6]
Describe and explain why lines B and C in Fig. 4.1 have the shapes shown.
(b)[1]
$\text{C}_6\text{H}_{12}\text{O}_6$ is one product of photosynthesis. State the chemical formula of the other product.
(c)[4]
Outline how the carbohydrates made during photosynthesis are used in plants.