Like Water for Chocolate.
Like Water for Chocolate To produce a good story, one must fabricate a plot in which the characters and the way they interact in the story seem natural. The plot of two love-struck people unable to be together is a classic among novels, but where it fails is the rest of the story is so run wild that the reader cannot relate. With credulously forced sexual innuendo, and quickly evanescing characters, Like Water for Chocolate tempts potential, but does not connect at any level with the reader. Without strong supporting characters, it is harder to communicate with the reader. In Like Water for Chocolate, characters are introduced to solve conflicts and then they fade away from the tale. Rosaura is introduced when Pedro comes to ask Mama Elena for Tita's hand and is rejected, "But if you really want Pedro to get married, allow me to suggest my daughter Rosaura, who's just two years older than Tita." (pg 13) After Pedro and Rosaura marry, they move to San Antonio and become a footnote in each chapter. One cannot truly understand Tita's emotions toward Rosaura if she is not around. A pattern is formed when Tita's other sister, Gertrudis, is introduced and leaves in the same chapter, "Without slowing his gallop, so as not to waste a moment he leaned over, put his arm around her waist, and lifted her onto the horse in front of him, face to face, and carried her away." (pg 55)
The biological importance of water.
The biological importance of water. Water is a key factor in our life and despite it being only a simple molecule, it is vital for life. Without water any life would not exist on earth as it makes up about 60% of the body weight of humans and in all living cells alone it makes up 70-95% of the mass in the cell. This means that water is the main constituent of all organisms. In jellyfish, water makes up 96% of its body mass but in herbaceous plants water makes up 90% of the mass. Water is the most abundant liquid on earth, which isn't surprising when it's seen that two thirds (or more), in active living cells is made up of water, and that two-thirds of the world is covered by water too. Our body takes in water by various different ways, by food (800), by drinking (1450), and by respiration (350). We take in roughly 2600cm3 of water per day. We release water from our body by urine (1500), sweat (600), evaporation from lungs (400), and in our faces (100). However the uses of water in our body is endless, and to understand is usefulness we must explore the structure or a water molecule. The structure of the water molecule gives us an insight in to the main reason as to why water is found in all places in our body. It isn't an ordinary molecule and because of its unusual chemical and physical properties it makes it's an ideal constituent of all living things. One of the benefits
The Biological Importance of Water
The Biological Importance of Water Water is a substance whose molecule is made from two hydrogen atoms and one oxygen atom (H20) and that is in a liquid state at room temperature. This is covalent bonding, where two hydrogen atoms share their electron with one oxygen atom. As the oxygen atom has more positively charged protons than the hydrogen is has pulls on the shared electrons more strongly than the hydrogen atoms. The oxygen atom therefore has a slightly negative charge while the hydrogen a slightly positive charge. Therefore because the hydrogen and oxygen atoms are different in size and electronegativity the water molecule is non-linear and dipolar. When two water molecules get close to one another, the oppositely attracted parts of the molecules attract each other. This type of attraction is called hydrogen bonding. This polarity means that individual water molecules can from hydrogen bonds with up to four other water molecules. Although these individual hydrogen bonds are weak, together they make water a much more stable substance. To break this structure would mean breaking all the hydrogen bonds ad that would require a large amount of energy. This sticky nature of water molecules explains many of its properties and its called cohesion. Water's cohesive and adhesive properties mean that it is viscous, making it a useful lubricant in biological systems such as the
The biological importance of water.
The biological importance of water Water is the most important element in the world and is necessary for the existence of life on earth. Life began in water, many living organisms live in water and some organisms are made up almost entirely of water (E.g-Jellyfish-93% water). Water chemically has a basic structure of two hydrogen atoms and one oxygen atom (H²O). They are bonded together covalently, sharing electrons to form water. Water is made of particles, which have polarity but remain stable due to the hydrogen bonds they form; the bonds are formed because of the opposite charges between oxygen and hydrogen. All chemical reactions in organisms take place in water; it is used in hydrolysis to break up bonds (E.g.-The breakdown of proteins down to amino acids). Osmosis and diffusion are transport mechanisms, which use water for things such as in the lungs during gaseous exchange and in plants when water is consumed. Water is extremely important biologically within plants as with humans, but especially with plants due to it being a fundamental reactant in photosynthesis (A plants life process). SUNLIGHT WATER + CARBON DIOXIDE GLUCOSE + OXYGEN CHLOROPHYL Water is also used as a solvent in tissue fluid (Lymph) and as the transport fluid in blood carrying Red Blood Cells, White Blood Cells, Platelets and Plasma. Water is used to aid the
The Biological Importance of Water
Stephen Cummins 12HOL Wednesday, 02 May 2007 The Biological Importance of Water Water is one of the most biologically important substances that an organism uses because it has many unique properties. One of which is its ability to dissolve different substances and carry them in its flow. This is because it is such a good solvent. Another interesting ability of water is it has a highly specific heat capacity. This means that it can only take a certain amount of heat energy before it is released. It also means that there is less temperature fluctuations in organisms that are mostly water based. So when there is an environmental fluctuation the organism would be only a small amount of change. Waters viscosity is another important aspect to the organisms relying upon it; this is because it easily flows and so can move easily through blood vessels and plants xylem and phloem vessels. The lower the viscosity the less energy required to transport the solution. So water is quite good for the transport of biological fluids. Water is a liquid at room temperature, this in itself is quite surprising considering the other substances that are in its group are all gases at room temperature and have very low boiling points from -5°C onwards. However, water has a boiling point of 100°C, which is useful because it won't boil until it reaches very high temperatures. Another
The Biological importance of water
The Biological importance of water Water is a simple molecule, yet it is fundamental to life. For example in active living cells, two-thirds, or often more, of the area is occupied by water, and two-thirds of the globe is covered in water. Water is therefore extremely abundant, and in biological terms it has great importance both inside cells, and externally, for example as a habitat. Water is the most abundant component of any organism. Humans are 60% water, and most organisms are 60-90% water. The lowest water content can be found in plant seeds, and the highest in jellyfish, and this is the cause of their transparency. The water is found mainly in the protoplasm, and here it plays vital roles in many functions, for example in metabolism in all organisms, and photosynthesis and support in plants. Substances produced in organisms often need to be transported to other parts of the organism. In humans, blood is used to transport food, hormones, oxygen, waste products and so on, and similarly in plants, sap is used to transport food and other substances. Both of these mediums for transports (blood and sap) are mainly water, as this is the substance that can dissolve the products to be transported. Blood allows oxygen to be transported to tissues, and waste products to be quickly removed. It also allows the transport of hormones, to control various organs. Plant cells have
The Biological Importance Of Water.
The Biological Importance Of Water In many ways, water is a miracle liquid. It is essential for all living things and is often referred to as a universal solvent because many substances dissolve in it. These unique properties result from the way in which water molecules interact with each other. Water is a simple molecule made up of two hydrogen atoms and one oxygen atom (H2O). The atoms are bonded covalently via a shared pair of electrons. Thus there are four pairs of electrons orbiting the nucleus of the oxygen; two pairs are involved in the covalent bonds with hydrogen and two unshared pairs of electrons on the other side of the oxygen atom. Therefore oxygen develops a slight negative charge and the hydrogen atoms develop a slight positive charge making the molecules "polar". This slight charge means that when water molecules are close together, the positively charged hydrogen atoms are attracted towards the negatively charged oxygen atom of another water molecule, forming a weak hydrogen bond. The bonds are weak individually but the sheer number of them means that the total force keeping the molecules is considerable. The partial charge that develops across the water molecule helps to make it an excellent solvent. Water dissolves many substances by surrounding charged particles and pulling them into solution. Salt (Sodium Chloride) is an ionic compound that contains
The Biological Importance of Water
Watery World Water, water, everywhere, Nor any drop to drink. As said by Samuel Coleridge in "The Rhyme of the Ancient Mariner" water is everywhere. Our planet's name - Earth - cannot be taken for face value because in reality the "Earth" is covered by more than 70% water. To be exact there is approximately 326 million cubic miles of water on Earth. In order to appreciate and envisage such an enormous amount you have to put it into perspective. Out of all the water on Earth, only 0.3% of it is usable by humans. The other 99.7% is unusable in oceans, seas, ice and the atmosphere. And even out of that 0.3%, most of it is out of our reach. But what is water? Water is a substance whose molecule is made from two 1hydrogen atoms and one 16oxygen atom (H20) and that is in a liquid state at room temperature. It boils at 100ºC and melts at 0ºC. Water is probably the fundamental reason for sustenance of life on Earth. Every living thing depends on it to survive which is why water is so important. As well as being essential to life, water also has many other uses. Some of these include being a very good solvent, for washing or even as habitats and environments. Water's abundance and requirements towards life already make it special but there are even more properties of water as a result of the hydrogen bonds between water molecules that make water an ideal constituent of living
The Biological Importance of Water.
The Biological Importance of Water Hyung-woo (Shane) Cho, L6GW What are the physical and chemical properties of water that make it so unique and necessary for living things? When you look at water, taste and smell it - well, what could be more boring? Pure water is virtually colorless and has no taste or smell. But the hidden qualities of water make it a most interesting subject. Most people will see water and think that it is very ordinary, as we are able to find water everywhere. It is written as H2O in chemistry, tasteless, transparent, liquid in room temperature, and made of hydrogen and oxygen. Water usually forms between 70~95% of the mass of the cell, and 75% of the earth is covered with water. Even though it seems to be the simplest and ordinary thing on the earth, it is also the most important and remarkable substance around us. Thinking about the importance of water becomes much easier when we imagine the life without water. Every life, cannot survive without it. This is because the scientists and spacemen are desperate to investigate if there is water on Mars, as it is the possibility of presence of life on Mars. Water does not only keep us to live and present, but it also helps very much in our life, and it is actually a very interesting substance to have a research about. Water is a liquid at room temperature; water dissolves more substances than any other
The biological importance of water
The biological importance of water Sepha Brook A17 Water is a simple molecule, yet it is fundamental to life. In active living cells, two-thirds, or often more, of the area is occupied by water, and two-thirds of the globe is covered in water. Water is therefore extremely abundant, and in biological terms it has great importance both inside cells, and externally, for example as a habitat. Every chemical reaction in the human body, and any other living thing require water. We use water to dilute poisonous waste and excrete as urine (toxins). Humans could survive a month without food but only a few days without water. Water can be referred to as the 'universal solvent' as more substances can be dissolved into it than any other. Often we need substances to be in a solution for our bodies to use, water makes this possible. For example plants can only absorb mineral salts in solution and the human digestion system will only absorb soluble foods, so large starch molecules (macro-molecules) must be broken down into soluble sugars like glucose and fructose, in plants. The gas exchange also needs a moist surface, as reaction takes place in a solution, hence avioli in lungs are moist and many plants have moist leaves (mesophyll cells) for gas exchange. The solubility of oxygen in water; which is four parts of oxygen to every hundred of water, is sufficient for marine
