The environment in which plants grow affects their structure and how they perform vital life processes.
Give the balanced chemical equation for photosynthesis.
The water crowfoot (Ranunculus aquatilis) is an aquatic plant that produces two distinct types of leaves: finely divided, thread-like leaves that remain completely submerged, and broad, flat leaves that float on the surface of the water.
Suggest why floating leaves have stomata restricted entirely to their upper surface, whereas submerged leaves completely lack stomata.
Explain why the submerged leaves are highly divided into thin, thread-like segments rather than being broad and flat.
The rate of photosynthesis is affected by environmental conditions.
Explain the factors that limit the rate of photosynthesis in a commercial greenhouse on a bright, warm spring afternoon where the ventilation has been kept completely closed.
Explain the factors that limit the rate of photosynthesis in an alpine plant during a freezing, cloudless morning.
Describe how you could investigate and compare the rate of photosynthesis in an aquatic plant (such as Elodea or Cabomba) at two different light intensities.
