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.
Because in photosynthesis carbon dioxide is taken in, and in photorespiration carbon dioxide is given off, these two processes work against each other. The end result is that photorespiration decreases the net amount of carbon dioxide which is converted into sugars by a photosynthesizing plant. By interfering with photosynthesis in this way, photorespiration may significantly limit the growth rate of some plants.