The absorption of water by the root hair does not depend solely upon its osmotic concentration but also upon its osmotic potential which is equivalent to the difference between its osmotic potential and its pressure potential. If the root hair becomes fully turgid, in order that its osmotic pressure becomes zero, it will absorb no more water from the soil. [...]
In this article we will discuss about the mechanism of photosynthesis in algae and leaves. Photosynthesis in Alage: Photosynthesis in Algae and Liverworts: Unicellular algae are aquatic and hence have abundant water and light available as raw materials. The third raw material CO2 is soluble in water and forms bicarbonate and carbonate. The solubility of CO2 in water is low [...]
The following points highlight the four theories proposed for the mechanism of crossing over. The theories are: 1. Janssen's Classical Theory 2. Belling's Copy Choice Theory 3. Uhl's Theory 4. Darlington's Theory of Crossing Over. Theory # 1. Janssen's Classical Theory: Janssen (1909) believed that prior to the formation of chiasmata the homologous maternal and paternal chromosomes come in pair [...]