The importance of water on life

Length: 6 Pages 1493 Words

The importance of water for life. Water has many roles in living organisms and life on earth is impossible without it. It makes up between 60% and 95% of the fresh mass of the organisms. In a water molecule, two hydrogen atoms are joined to an oxygen atom by covalent bonds. This makes it a stable molecule. The oxygen nucleus attracts the electrons more than the hydrogen nuclei do. This results in the oxygen atom having a ¥ä- charge and the hydrogen atoms having a ¥ä+ charge. This water molecule is referred to as dipolar due to the uneven charge distribution. Water plays a very important role in animals. It maintains the process of homeostasis to maintain the relatively constant temperatures within the body. Water has a high specific heat capacity, indicating that it requires a lot of energy to raise the temperature of 1Kg by 1¢ªC. Also, a lot of heat energy must be lost for the temperature of the same mass of water to fall by 1¢ªC. This is important because it means that sudden changes in the temperature, which may upset metabolic reactions in cells, are avoided. These chemical reactions are allowed to tale place within a narrow temperature range so that rates of reaction are more constant. However, for organisms th Continue...


More sample essays on The importance of water on life

    Cloudstreet
    .... the irony being that the book is more concerned with daily life than the .... clear at the end of the novel when we see the importance of the water in both the .... (1025 4 )

    Black Water: Voiceless Victims
    .... a variety of techniques to emphasize the importance of these .... her disbelief that this the way her life is to .... The words of Black Water are not just the story of .... (1401 6 )

    Like water for chocolate
    .... However, the water in the shower evaporated, and the .... that true love goes beyond understanding and beyond life. .... the least, it shows us the importance of cooking .... (2276 9 )

    F 451
    .... of Montag as he realizes that the life he once .... Another instance in which water is used is when Montag .... see Faber who helps him realize the importance of books .... (683 3 )

    Water
    .... Life as we know it could not have evolved without liquid water and dies .... Because of its clear importance, water is the most studied material on Earth. .... (564 2 )

    The importance of water as ab
    The importance of water as ab. Water is the most available compound on earth and is essential to life itself, without water, Earth would not exist. .... (1176 5 )

If the water stress is sufficiently severe the plant may release a growth inhibitor, which triggers stomatal closure. Transpiration maintains a water potential gradient by which water moves from the soil into the root hairs, and across the cortex of the root to the central vascular tissue. This is due to water having a maximum density of 4 C. Nutrient ions are absorbed from the floodwater. Humidity is important for its effect on the rate of water loss by plants and animals. Water flows readily through narrow capillaries due to the fact that water molecules can slide over each other as they have very low viscosity. At the gill surfaces the fish loses water by osmosis and also gains ions from the seawater by diffusion, thus increasing the concentration of the body fluids. Without water there will be a shortage of oxygen. Simultaneous movements of water uptake and water loss by transpiration show that the supply of water into the plants often falls behind the rate of water loss at times of peak transpiration. Many of the plants have adapted to containing water storage cells. Water contains the isotope oxygen-16. Animals of arid regions are adapted to survive with little water.

PROFESSIONAL ESSAYS:

Water and Electrolyte Balance
Moreover, sodium is of primary importance in regulating body nurses appreciate the fact that water and electrolyte balance is essential to both life and health (1757 7 )

Water As a Valuable Resource
life, both plant and animal, are deprived of this precious life-sustaining element (3 The improvements have increased the importance of drinking water as a (3148 13 )

Global Warming: The Importance of Relying On Facts
Global Warming: The Importance of Relying On Facts Environmentally These gases, in addition to water vapor, prevent phenomenon for the existence of life on earth (1173 5 )

Chapter Summary of Living in the Environment
CHAPTER 17. WATER RESOURCES This chapter focuses on importance of water as an essential resource governing the persistence of all life forms on earth. (6729 27 )

The Arab World
For example, he repeatedly stresses the importance of family among Arabs, and but ordinary believers--regard Islam as the path to the water of life: a way (1856 7 )

Issues in California
The importance of water is noted as a perpetually controversial different interests, only one of which is water usage who tried to find a new life in California (1871 7 )