The Role of Water in the Lives of Organisms Essay -- Biology Essays

The mapping of Water in the Lives of Organisms Water is perhaps the most grand shred for the survival and life of all living organisms because there is a unspecific spectrum of roles that it plays. The fact that the earths surface consists of 70.8% pee shows its signifi bedce and importance. ====================================================================== Firstly, irrigate has the chemic face Hg0 (two Hydrogen atoms to one Oxygen atom), the covalent bonds between which create viscid forces. Water has a very high specific heat capacity, criterion 4,200 Joules, creating a stable environment for organisms to live in. This means that water does non heat up or modify down too cursorily due to the difficulty in breaking the hydrogen bonds, which restricts the movement of the water molecules. This off codswallop of water is beneficial to aquatic organisms (e.g. Fish, Jellyfish), as they do non have to keep adapting their own body temperatures for survival. Another property water has is its insulating nature in lakes and rivers. As water cools toward 0C, the water molecules retard down to form the maximum number of hydrogen bonds. As this cognitive process continues, water molecules must give enough space for all quadruple hydrogen bonds to fit, causing the water to expand as it freezes to form ice. cover is less dense than the liquid form and therefore floats, a property very significant to the survival of fish as this layer of ice insulates the liquid water below to prevent the whole lake or river to freeze. Otherwise, this could be fatal for many organisms in the aquatic food web. Aquatic plants can survive in deep waters due to the fact th... ...er as sweat, the liquid gets turned into a vapour causing humans to cool down and control our body temperature (a homeostasis process). The cooling functions of water are committed to its high heat capacity nature. Water has influences on a colossal number of aspects of organisms lives. From habitat, transport, support, movement, fertilisation, insulator, roles of key processes (photosynthesis and respiration), protection from damage, homeostasis and gas exchange. Enzymes are very important in the body of some / most organisms and catalyse almost each reaction. However, they are soluble and will need water to function, as a result water is very important. Water is an important substrate for chemical reactions as well as product. Around 70% of human locoweed consists of water, in plants, 95% of mass consists of water.