Siberian tiger / Amur tiger (Panthera tigris altaica) Siberian tiger / Amur tiger â interesting facts. The Siberian tiger is the largest living representative of felids, and one of the largest felids that have ever lived. It is usually taller than the Bengal tiger by 5-10 cm (2-4 in).
Three factors can limit the speed of photosynthesis - light intensity, carbon dioxide concentration and temperature. Without enough light, a plant cannot photosynthesise very quickly, even if there is plenty of water and carbon dioxide. Increasing the light intensity will boost the speed of photosynthesis.
As temperature increases, photosynthesis accelerates then reaches a peak; Some of the enzymes that catalyze photosynthesis become unstable and ineffective; Stomata close which limits water loss and carbon dioxide entry into the leaves; Photosynthesis decreases.