Water Is The Most Essential For All Living Organisms

Water is a medium for metabolic reactions and an important constituent of cells. In most plants and animals, it makes up about 65-95% of their mass. The water molecule is referred to as a dipole, a polar molecule, with a positive (hydrogen) and negative (oxygen) charge, separated by a very small distance. A molecule with a separated charge is polar. A hydrogen bond; the weak attractive force between a hydrogen atom with a partial positive (o+) charge and an atom with a partial negative charge (o-) oxygen can be formed between two atoms. Hydrogen bonds are weak, however in large quantities, like the large number present in water it makes the molecules difficult to separate and gives water a wide range of physical properties vital to life.

Attractions between water and other molecules, which is adhesion, is also possible because of the polarity as well. In relation to hydrogen bonds, water’s high specific heat is changed when hydrogen bonds are made or broken. When a hydrogen bond breaks, heat is absorbed whereas when a hydrogen bond forms, heat is released. In addition to HSH, ice is able to float in liquid water because hydrogen bonds in ice is more structured than in water, making the ice less dense. Also, water is a versatile solvent because of its polarity, which helps it form hydrogen bonds (mentioned above). The structure of water molecules also affects the dissociation of water, where H2O breaks into H+ and OH- due to the polarity of the

9. Water is POLAR (which mean it is + on one end and – on the other).

(b) Explain each of the following in terms of the properties of water. You are not limited to the three

As a result of the water molecule bond, each (hydrogen; oxygen) has a slightly negative charge and each (hydrogen; oxygen) has a slightly positive charge.

Comprising over seventy percent of the Earth's surface, water is undeniably the most valuable natural resource. Life on Earth would be non-existent without water because it is essential for everything on our planet to grow. The human body is composed of 50-80% water. Blood and muscles contain significant amounts, and approximately 95% of the brain is water. All body systems and organs need water to function properly, and will shut down without it. Most of the chemical reactions that take place in our body need water as their medium. We can live without food for a few weeks, but can survive only a few days without water. It's essential because unlike other nutrients, water isn't stored in the body. Typically, everyday, we lose around 10

1) Water molecule is formed with 2 hydrogens and one oxygen atom. Water molecule is a polar molecule because both the opposite side of the molecule have opposite charges. And also, atoms are linked by covalent bonds.

The electrons in the molecule are on the oxygen side of the molecule. By doing this it causes a reaction of giving this side a negative charge and the hydrogen side a positive charge. Only other polar molecules can dissolve in water because polar molecules dissolve only in polar solvents and non-polar molecules dissolve only in non-polar solvents .Oil and water don't mix because oil is made up of non-polar molecules while water molecules are polar in nature. Since water molecules are electirically charged they get attracted to other water molecules an extract the oil molecules . This eventually causes the oil molecules ,or lipids to clump together.

Water is a polar molecule made up of on atom of hydrogen and two atoms of

1. Water is a good solvent due to its polarity. Water is able to dissolve many molecules necessary for life. For example: amino acids and glucose.

The Importance Of Water To Living Organisms Water is normally the most abundant component of any living organism. As most human cells are approximately 80% water and 60% of the human body is made up of it, it is extremely important in many different ways to both the survival and the well being of living organisms. Evolutionists believe that life probably originated in water and even today thousands of organisms make their home in it. Water also provides the medium in which all biochemical reactions take place. The importance of water to living organisms originates from its many properties including its solvent properties, its high specific heat capacity, its high latent heat of vaporization,

Water is essential for life on earth. Water is needed for growing food, keeping ourselves clean, generating power, controlling fire and most importantly to stay alive! This list is simply non-ending. This shows that water is an integral part of our daily life and we are heavily dependent on it.

Liquid water is the best solvent for life to emerge due to its large dipole, the ability to form hydrogen bonds, and to stabilize macro molecules. It is able to orient hydrophobic and hydrophilic molecules and is a strong polar and non-polar solvent. This dichotomy is essential for maintaining stable bimolecular and cellular structures.

Biological systems need water because it provides many functions. Water is a unique molecule that is known to mankind and it is also important to the biological systems. Water exists in three states of matter including solid, liquid, and gas. The solid phase of water is known as ice. Water is mainly a liquid at room temperature. Water at room temperature supplies an environment for organisms to live in as well as providing a liquid environment inside cells in order for them to live. The gaseous phase of water is known as water vapor. Water is made up of 2 basic components called Oxygen and Hydrogen. Water is known to be a polar covalent molecule and is the main indication of transportation of substance between cells and tissues. Water acts as a solvent for chemical reactions which helps transport dissolved compounds into and out of cells. Since water is ionized, it can be used for many functions such as transportation in the body, nutrients, sugar, and salt can be transported throughout the body through the bloodstream. Molecules such as glycogen are not soluble and cannot be transported therefore will used for storage. Water can also act as a base and an acid.

Water a transparent and formless liquid that is one of the most important things that we have on planet Earth. Every living thing needs water to live, so it is considered to be the source of life, by many.