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The energy stored in organic molecules by photosynthesizers is the fuel of life for most living things and the oxygen released during photosynthesis makes cellular respiration—and therefore life—possible on earth.Biological importance of water Water is essential to every living organisms.
The plant can then use this carbon dioxide and the cycle is complete.
Photosynthesis is the process by which organisms convert light energy into chemical energy.
Water is a major component of cells, it takes up around 70% to 95% of mass of the cell.
Water possesses unique properties, for instance, high specific heat capacity, solvent properties, high incidence of hydrogen bonding and low viscosity. These characteristics cause water to become biologically important to all living organisms.
The evaporation of sweat from skin surface absorbs a large amount of latent heat from our body, so cooling the body very efficiently.
Besides the high latent heat of vaporization, hydrogen bonding also gives a special characteristic to water that is a high specific heat capacity.This means a lot of energy is needed to heat up water.This feature is especially useful in both endothermic and aquatic organisms.For example, in human bodies, useful substances like glucose and oxygen first dissolve in fluid plasma, they are then transported by plasma, a body fluid with water and protein, to different body cells for respiration, so energy will be produced.Carbon dioxide, released from cells after respiration, dissolves in plasma and is transported out the body by diffusion.All of these processes together make up the oxygen cycle.The oxygen cycle is interconnected with the carbon cycle. The Oxygen Cycle Oxygen is constantly being used and created by different processes on planet Earth. It makes up about 65% of the mass of the human body. Oxygen also makes up about 30% of the Earth and 20% of the atmosphere.In the simple example of the oxygen cycle shown below, you can see how oxygen is used and cycled by plants and animals.Plants are the main creators of oxygen in the atmosphere through the process of photosynthesis.