The environment in which plants grow affects their structure and how they perform vital life processes.
Give the balanced chemical equation for aerobic respiration.
The structure of leaves in a forest canopy varies from the top of the canopy (exposed to high wind and intense sunlight) to the bottom of the canopy (sheltered, humid, and shaded).
Suggest why leaves at the top of a forest canopy often have a thicker waxy cuticle than leaves at the bottom.
Explain why leaves at the bottom of the canopy have a larger surface area per unit mass than those at the top.
The rate of photosynthesis is affected by environmental conditions.
Explain the factors that limit the rate of photosynthesis on a cold, sunny winter morning.
Explain the factors that limit the rate of photosynthesis on a hot, dry summer afternoon.
Describe how you could investigate and compare the rate of photosynthesis in an aquatic plant (such as cabomba or elodea) at two different temperatures.
65 exam-style questions on Edexcel IGCSE Biology Nutrition. Each one has a worked solution and a mark scheme showing where the marks go.