Selasa, 25 April 2017

TM 12 : Using english to give evidance



Give Evidence of the Chemical Reactions In Everyday Life



This is the essence of our daily lives and occurs in the foods we eat, the air we breathe, the water we drink, are all the result of the chemical reaction process. In fact, osmosis like love, hatred, also driven by chemical reactions. To better understand the almost chemical reactions around us, we have provided everyday examples in two parts. First, an example of a chemical reaction in our body and two examples of chemical reactions that exist outside our body or occur around us.

Chemical Reactions In The Body
Chemical reactions play an important role in our survival, and living without chemicals can not even be imagined. They participate in the main functions of the body, control our emotions, supervise the process of metabolism and keep the disease. The oxygen we breathe, the essential nutrients we need, the genes that make our bodies - DNA and RNA - are all composed of different elements and compounds.


1. Metabolism
Organic processes that occur in the human body are called metabolism, which involves a large number of chemical reactions. Enzymes secreted by different organs act as biocatalysts that accelerate the rate of reaction, while the hormones regulate the occurrence of time and velocity. Our wellbeing, smooth function and normal health depend on metabolic processes. The coordination and simultaneous occurrence of this process of life in an orderly manner is the reason we are fit, healthy and alive.


2. Respiration
Breathing is the exchange of gases between the organism and its environment. Respiration is a chemical reaction process, which is a reaction between glucose or sugar with oxygen, which releases energy.
This is the process by which inhaling oxygen from the air causes lung inflation and then deflation occurs by exhaling carbon dioxide into the environment. Reactions that occur during breathing: -
C6H12O6 + 6O2 6CO2 + 6H2O + Energy


3. Water Composition
Water is the elixir of life on Earth. Hydrogen is a highly flammable gas and oxygen is a gas that is unlikely to react without burning, one another forming a covalent bond to create the most effective fire extinguisher called water. The chemical reaction formula of water is H2O. Yes! We drink everyday chemical reactions. Water is very important for all metabolic processes that occur in our body. As Leonardo da Vinci states "Water is the driving force of the whole world."


4. Feeling Hungry
When you feel hungry ghrelin hormone is secreted by the stomach that triggers hunger. It stimulates the release of growth hormone. It plays a role in insulin release and protection of cardiovascular organs. More ghrelin is produced thus increasing your desire for food.




5. Tears and Crying
Sometimes, crying is a natural reflex. Studies have shown that emotional tears contain manganese, an element that affects temperament and more prolactin.
Prolactin is the hormone that regulates milk production. Removal of prolactin and manganese is thought to ease build tension in the body and make you feel energized.
So, next time you feel slumped and need to vent your emotions, do not get arrested. cry! It will help you feel better.



Chemical Reactions Around Us

The reaction of chemical reactions affects the things around us and there are many examples where chemicals and chemical reactions help us live a better life. Cooking food, clothes we wear, fertilizers we use for plants, cement used to build homes, power plants that generate electricity, and many other processes that depend on chemical reactions. Human dependence on the natural sciences is on the rise and to understand this, here are some examples that highlight the importance of chemical reactions around us.


1. Photosynthesis
Photosynthesis involves the transformation of energy and is a process of chemical reaction where plants, algae, and some bacteria produce their own food. This is the synthesis of glucose by using carbon dioxide and water in the presence of sunlight trapped by chlorophyll present in the leaves. The reaction is described as:
6CO2 + 6 H2O + Energy Light C6H12O6 + 6O2
Photosynthesis is the reverse process of respiration. They are both interdependent. To get an unbroken supply of oxygen, and the plants get the carbon dioxide they need. Thus, photosynthesis plays an important role in our daily life.

2. Apples turn brown
Apples contain an enzyme called polyphenol oxidase (PPO), also known as tyrosinase. Cutting apples shows cells that react to atmospheric oxygen and oxidize phenolic compounds present in apples. This is called enzymatic browning that changes the brown apples when cut. In addition to apples, enzymatic browning is also seen in bananas, pears, avocados and even potatoes.

3. Noda Removal
The soap is formed by the reaction between alkali and fatty acids. It produces molecules with one hydrophilic and one lipophilic end. Lipophilic ends stick oil, oil or dirt. This can be removed by soap and drift with the flow of water, leaving a clean surface. It's just a physical reaction that happens. Soap and stain cleaners act as emulsifiers that allow oil and water to mix and oily mixtures and stains on the body and clothing can be removed after using soap, stain and water removers.

4. Fruit Maturation A simple hydrocarbon gas ethylene exchanges the genes necessary to stimulate the secretion of a maturation enzyme that catalyzes the reaction to alter the properties of the fruit. Ethylene channelizes are the actions of several other chemical reaction substances called hydrolases, amylases, pectinases and kinases. These enzymes convert starch into sugars, change cell walls to make them softer, neutralize acids and cause fruit to emit aromas.

5. Sunblock
Sunscreen is a combination of organic and inorganic compounds. Inorganic chemical reaction materials such as titanium dioxide or zinc oxide, form a barrier on the body that reflects or transmits UV waves.
Organic components such as octyl methoxycinnamate (OMC) or oxybenzone absorb UV light and release their energy as heat. It protects our skin from burning and harmful effects such as cancer.

6. The kutek removers
Nail polish consists of three types of organic solvents and elements of drying, thickening and hardening elements together with dye. Actually organic solvents used as an ingredient in nail polish are acetone or ethyl acetate. So when you use a busting that will only bring it back to its original state. Solvent molecules enter between the polymer chains and separate them, making it easy to clean with cotton balls.

14 komentar:

  1. please can you explain about how acid rain mechanisms occur?

    BalasHapus
    Balasan

    1. This acid rain may form as a result of a sulfate-containing gas reaction process. Sulfate dioxide (SO2) which reacts with Oxygen (O2) with the help of ultraviolet rays derived from sunlight. This process will produce sulfate trioxide (SO3) which converges after the reaction, ie, through rising sea water in order to produce sulfidic acid (H2SO4), this process then fused with the gas contained in the udaraseperti ammonia that produces a new particle arrangement that is acid Sulphate ammonia. The particles remaining and settle in the air will form a fine droplet that is moved by the wind from one place to another. When the precipitation of rainfall is right, the sulfuric acid droplets (sulfates) and ammonia sulphate grains will decompose in the rainwater and fall to the surface of the earth into acid rain.

      Hapus
  2. Hi ijess, please explain what is used in photosynthesis process?

    BalasHapus
    Balasan
    1. The process of photosynthesis does not last for all cells but specifically there are cells that contain photosynthetic pigments because the process of photosynthesis is influenced by the ability of the leaves to absorb the light spectrum. This difference is due to differences in pigment in leaf tissue. Chloroplast is one of the photosynthetic pigments that play an important role in the process of photosynthesis to absorb solar energy. Chloroplasts or green leaf substances are present in all green plants. Chloroplast contains chlorophyll. This photosynthetic pigment is present in the thylakoid membrane. The conversion of light energy into chemical energy takes place in the thylakoid with the final product of glucose formed in the stroma. Chlorophyll itself is only part of a device in photosynthesis known as photosystem. Photosystems are units of plants to capture solar energy (chlorophyll). The process of photosynthesis begins with the energy of light absorbed by the protein berklorofil commonly called the center of photosynthesis reaction. In plants, these proteins are stored in organelles called chloroplasts, whereas in bacteria, these proteins are deposited on the plasma membrane. Some of the light energy collected by chlorophyll is stored in the form of adenosine triphosphate (ATP). The remaining energy is used to separate electrons from substances such as water. These electrons are used in reactions that convert carbondioxia into organic compounds. In plants, algae, and cyanobacteria, this is done in a series of reactions called the Calvin cycle, but different reaction sequences are found in some bacteria, for example the reverse Krebs cycle on Chlorobium. Many photosynthetic organisms have the adaptation of concentrating or storing carbon dioxide to help reduce the wasteful process called photorespiration that spends some of the sugar produced during photosynthesis. The process of photosynthesis is constantly being investigated because there are a number of stages that have not yet been scientifically explained even though much has been known about this vital process. The process of photosynthesis is very complex because it involves all major branches of natural science, such as physics, chemistry, and biology itself. Basically, the series of photosynthetic reactions is divided into two main parts: light reactions (requires light) and dark reactions (requires no light but require carbon dioxide)

      Hapus
  3. hai inggi can your explain, how is the influence of chemistry in life?

    BalasHapus
    Balasan
    1. Many impacts can be caused by chemicals. Here are some of the positive effects of chemicals that have been found to date, among others:
      1. As a maker of cometics, paints and soaps
      2. As a medicine-making material
      3. As a material to extinguish the fire
      4. As a solvent in industry
      5. As a preservative and food flavor enhancer

      In addition, not a few negative impacts that can be caused by chemicals, among others:
      1. Can cause dangerous diseases, such as cancer, tumor, etc.
      2. Can cause infertility of living things
      3. Can damage the organs and tissues of living things
      4. Can cause temporary defects, or permanent
      5. Can cause a prolonged outbreak of disease
      6. Can cause damage to the atmosphere and ozone

      Hapus
  4. Would you please explain why metabolism is included in the use of chemical reactions ?

    BalasHapus
    Balasan
    1. Metabolism is all the chemical reactions that occur within the organism, including those that occur at the cellular level.

      Hapus
  5. How the process of metabolism in the human body?

    BalasHapus
    Balasan
    1. The metabolic process is divided into two, namely anabolic and catabolic. Anabolism is the reaction to assemble organic compounds from certain molecular molecules in order to be absorbed by the body. Anabolism requires energy in the form of ATP and can be used to form structural material or storage of excess nutrients. While catabolism is the decomposition of a substance into smaller particles for energy. The process of catabolism and anabolism generally occurs in a balanced way.
      In the body occurs three metabolic processes of the body as follows.
      1. Carbohydrate Metabolism
      Carbohydrates are the result of CO2 and H2O synthesis with the help of sunlight and green leaf substance (chlorophyll) through photosynthesis. This food substance is a source of energy for heterotrophic organisms (living things that obtain energy from the source of organic compounds in the environment). Carbohydrates are elements of organic compounds synthesized from inorganic compounds containing Carbon (C), Hydrogen (H), and Oxygen (O) elements.
      2. Protein Metabolism
      Protein is a fairly complex organic compound with high enough molecular seeds. Proteins are polymers of a number of amino acid monomers attached by a bond called peptide. When parsed, proteins consist of carbon, oxygen, nitrogen, hydrogen and some contain phosphorus and sulfur. Protein is one of the most important compounds for humans. Protein has a significant role to grow and develop the balance of the body. To perform the function, the body will run a series of processes to maximize absorption.
      3. Fat Metabolism
      Fat (Lipid) is a hydrophobic organic substance that is difficult to dissolve in water. However, fat is soluble in organic solvents, such as chloroform, ether, and benzene. The fat constituent elements include Carbon (C), Hydrogenn (H), Oxygen (O) and sometimes Phosphorus (P) and Nitrogen (N). The fat molecule consists of four parts, one molecule of glycerol and three fatty acid molecules. Fatty acids consist of chains of Hydrocarbons (CH) and Carboxyl groups (-COOH). The glycerol molecule has three Hydroxyl (-OH) groups and each hydroxyl group interacts with the carboxyl group of fatty acids.

      Hapus
  6. What causes when the apple is left in the open air will change color?

    BalasHapus
    Balasan
    1. Browning or browning process is a process in which a substance, generally in the form of food, turns brownish. These color changes are generally followed by a change in taste in foods that reduce the taste of food so that this process is often considered to be detrimental. However, there is actually a browning process that is desired and deliberately done on food. There are two types of browning processes, namely: a browning process involving enzyme work or enzymatic browning and a browning process that occurs inoperatively from oxidative enzymes or browning. Caramelization and Maillard Reactions are two main types of oxidative tanning processes.

      Hapus
  7. In photosyntesis reaction, where is ATP and what it's mean?

    BalasHapus
    Balasan
    1. ATP is generated from photosynthesis of dark reactions and light reactions. Adenosine triphosphate (ATP) is a nucleotide, a type of molecule that forms deoxyribonucleic acid (DNA) and ribonucleic acid (RNA), the material of the genetic material. When it is not part of RNA or DNA molecules, ATP serves to transport chemical energy in cells for various metabolic purposes. Some of the mechanisms that ATP matters are the synthesis of chemical compounds such as proteins, cell motility or movement, and cell division.

      Hapus

video about chemistry

Explanation about show cause and effect of chemical reaction https://www.youtube.com/watch?v=LwD4H7KIWYQ