Minggu, 30 April 2017

Dialogue Cause And Effect


DIALOGUE CAUSE AND EFFECT

Ayu : Hallo heni..!
Heni : Hallo Ayu...!
Ayu : Heni, what do you think is the best action to reduce global warming?
Heni : I think everyone should start changing their way of life.
Ayu : What do you mean?
Heni : Well, we have to start to do what we can, to help reduce global warming.
Ayu : What do you suggest that we should do?
Heni : Well, there are lots of things that we can do. We should start saving electricity, start recycling things, start using public transport means, buying and consuming as much as we need only, etc. Basically, just save anything that we can.
Ayu : Why is global warming possible?
Heni : Global warming occurs because of two things: a natural global warming cycle, or natural damage.
The global warming and cooling cycle has been proven to exist, every thousand years at least one period of cooling and heating.
For natural destruction, things like the destruction of the Ozone layer in our atmosphere, the increasing amount of greenhouse gases (gases like carbon dioxide and methane) that trap solar thermal energy in the earth, the increase in greenhouse gases is thought to be human, we use energized facilities Fossils (oil, coal) etc.
Ayu : Wow! You know a lot of things about global warming. Where did you learn all of that from?
Heni : Well, I read newspapers, magazines, and also search for information in the internet.  Actually, I want to inform what I’ve learned to everyone so that everybody can start helping to save our nature.
Ayu : You’re so awesome.
Heni : thanks..!

 

Kamis, 27 April 2017

Using English To Give Evidance


Examples of Chemical Reactions in Everyday Life


Chemical reactions can happen anywhere around us, not just in the laboratory. Matter interacts to form new products through a process called chemical reactions or chemical changes. Every time we cook or are cleaning, it is also a chemical in action. Our bodies live and grow thanks to chemical reactions. There are reactions when we take drugs, light a match, and take a breath. Here are some examples of chemical reactions in daily life. This is just a small example, because we see and experience hundreds of thousands or even more chemical reactions every day.

1.      Photosynthesis

 

Photosynthesis is a process used by plants and other organisms to convert light energy, usually from the Sun, into a chemical energy that can then be liberated to fuel organism activity. This chemical energy is stored in carbohydrate molecules, such as sugars, which are synthesized from carbon dioxide and water. In most cases, oxygen is also produced as a waste product. Most plants, mostly algae, and cyanobacteria do photosynthesis, and these organisms are called photoautotrophs. Photosynthesis maintains atmospheric oxygen levels and supplies all organic compounds and most of the energy needed for life on Earth.
Briefly, plants use a chemical reaction called photosynthesis to convert carbon dioxide and water into food (glucose) and oxygen. It is one of the most common daily chemical reactions and also one of the most important, because this is how plants produce food for themselves and animals and convert carbon dioxide into oxygen.
6 CO2 + 6 H2O + light → C6H12O6 + 6 O2

2.      Aerobic Cell Respiration

 

Aerobic cellular respiration is the reverse process of photosynthesis in molecular energy coupled with the oxygen we breathe to release the energy needed by our cells plus carbon dioxide and water. The energy used by cells is the chemical energy in the form of ATP (adenosine triphosphate).
Aerobic respiration requires oxygen to produce ATP. Although carbohydrates, fats, and proteins are consumed as reactants, it is the preferred method of breaking pyruvate in glycolysis and requiring pyruvate to enter the mitochondria to be completely oxidized by the Krebs cycle. The products of this process are carbon dioxide and water, but the energy transferred is used to break strong bonds in ADP as a third phosphate group is added to form ATP, by substrate level phosphorylation, NADH and FADH2
Here is the overall equation for aerobic cell respiration:
C6H12O6 + 6O2 → 6CO2 + 6H2O + energy (36 ATPs)

3.      Anaerobic Respiration

 

In contrast to aerobic respiration, anaerobic respiration represents a set of chemical reactions that allow cells to gain energy from complex molecules without oxygen. Cell muscles perform anaerobic respiration every time we get rid of oxygen which then reaches them, like during intense or prolonged exercise. Anaerobic respiration by yeast and bacteria used for fermentation, to produce ethanol, carbon dioxide, and other chemicals that make cheese, wine, beer, yogurt, bread, and many other common products.
The overall chemical equation for one form of anaerobic respiration is:
C6H12O6 → 2C2H5OH + 2CO2 + energy


4.      Color Meat
There are two types of meat: red and white. Red meat contains a highly pigmented protein called myoglobin which stores oxygen in muscle cells. However, when the meat is heated, the protein breaks down and shrinks in size.
When the temperature in the meat reaches 170 ° F, the level of hemichrome (a brown compound) increases, and myoglobin becomes methyoglobin, which gives a gray-brown color to the flesh. White meat contains glycogen, which has a clear quality when raw. When it is cooked, the protein joins, or thickens, and the flesh becomes opaque and whitish.
5.      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.
6.      Crying and Onion
When you cut the onions you damage the cells that form the inner layer of the onion, thereby releasing an alliinase enzyme that reacts with a sulfur-containing compound known as 'prensco', which is also released while cutting.
The result of this reaction is in the formation of 1-propenyl sulfenic acid. This acid is subsequently converted to Propanethiol S-oxide, a volatile sulfur compound, by the LF-synthase enzyme (meaning synthesis of lachrymatory Factor enzyme).
This gas, known as (crying factor) The lachrymatory factor, reacting with our tears to form sulfuric acid causes a sore sensation in your eyes and towards the tear glands to shed tears.
7.      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.

8.      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.
9.      Fermentation
Fermentation is the conversion of complex substances to be simpler under anaerobic conditions. The products of fermentation are driven by the type of microorganisms that work on the substance when fermentation occurs.
Fermentation products are alcohols or acids and the release of carbon dioxide. For example, wine produced from fruit juice is alcohol as a result of fermentation by yeast, while beer is the result of fermentation of wheat yeast. Antibiotics are obtained by fermentation by mold and some bacteria. Yogurt, cheese and vinegar are products of bacterial fermentation. The yeast is obtained by yeast fermentation.
10.      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.
11.      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.
12.      Static Surprise
All materials are made of electrical charge in atomic matter. There is an equal number of electrons (negative charges) and protons (positive charges) that try to balance each other in the universe.
Friction between the two materials causes the cost to distribute. Electrons from one atom will be transferred to another. As we know, like the cost of mutual rejection and unlike the cost of attracting each other. Every time you touch anything that is a good electrical conductor, an accumulated additional electron transfer takes place, and gives you a static shock.
For example, in general in winter, you get a shock when you get out of the car or when you touch the door knob or filing cabinet.
Your own body is a large chemical reaction plant in which one or another chemical reactions take place at any time. Most people hate chemical reactions because of the long reactions and names of the tough chemical reactions we see in chemical books. However, taking a practical approach to understanding this science, we encounter in everyday life, will help you appreciate even more.