April 27, 2017
If chemistry were compared to a sport, then the study of atomic and molecular properties, along with learning about the elements and how they relate on the periodic table, would be like going to practice. Learning about chemical reactions, which includes observing them and sometimes producing them in a laboratory situation, is like stepping out onto the field for the game itself. Just as every sport has its "vocabulary"—the concepts of offense and defense, as well as various rules and strategies—the study of chemical reactions involves a large set of terms. Some aspects of reactions may seem rather abstract, but the effects are not. Every day, we witness evidence of chemical reactions—for instance, when a fire burns, or metal rusts. To an even greater extent, we are surrounded by the products of chemical reactions: the colors in the clothes we wear, or artificial materials such as polymers, used in everything from nylon running jackets to plastic milk containers.
in this post i will give you some example of chemistry , which this example can evidence about chemistry in our daily life , check below ^^
The human body contains enough carbon to provide 'lead' (which is really graphite) for about 9,000 pencils!
Chemistry is a branch of science, which deals with the study of the composition, structure, properties, reactions, and behavior of substances. Hence, chemistry is termed as the central science. It is the essence of our everyday lives and occurs in the food we eat, the air we breathe, the water we drink, everything is a result of chemical processes.
In fact, emotions like love and hatred are also driven by chemistry. For a better understanding of the chemistry that is virtually everywhere around us, we have provided day-to-day examples in two sections. Firstly, examples of chemistry within our body and secondly, examples of chemistry that exist outside our body or occur around us.
Chemistry Within Us
Chemistry plays a vital role in our survival, and life without chemicals can't even be imagined. They participate in the primary functions of the body, control our emotions, oversee the metabolic processes and keep diseases at bay. The oxygen that we breathe, the essential nutrients that we require, the genetic make-up of our body - the DNA and RNA - are all made up of different elements and compounds. Let us take a look at few such instances that involve chemistry, and are an integral part of our existence.
Roughly 96% of our body mass is made up of just 4 elements:- Oxygen, Carbon, Hydrogen and Nitrogen. The remaining 4% consists of around 60 elements that include sodium, potassium, calcium, zinc, and the list goes on.
The elements that are required in larger amounts are called macro-nutrients and the others that are needed in minute quantities, usually in parts per million or less, are called micro-nutrients. Chemically, the human body is made up of water and organic compounds- carbohydrates, proteins, lipids, and nucleic acids.
Composition of Water
Water is the elixir of life on Earth. Hydrogen - a highly-combustible gas and Oxygen - a gas without which combustion is impossible, form a covalent bond with each other to create the most effective fire extinguisher, which is water. The chemical formula of water is H2O.
Yes! We drink a chemical everyday. Water is important for all the metabolic processes that occur inside our body. As Leonardo da Vinci stated "Water is the driving force of all nature."
Feeling Hungry
When you feel hungry the hormone Ghrelin is secreted by the stomach that triggers hunger. It stimulates the release of the growth hormone. It plays a role in the release of Insulin and protection of the cardiovascular organs. So, the next time your stomach growls grab a bite because if you fast or skip meals, more Ghrelin is produced thus increasing your craving for food.
Tears and Crying
Sometimes, crying is a natural reflex. Studies have shown that emotional tears contain more manganese, an element that affects temperament and more prolactin. Prolactin is a hormone that regulates milk production. This elimination of manganese and prolactin is thought to ease out tension building up in the body and you feel energized and rejuvenated. So, the next time you feel low and need to vent your emotions, don't hold back. Just cry! It will help you feel better.
Chemistry of LOVE
We fall in love or are attracted to someone and have a feeling of belonging due to an increase in the secretion of -Phenylethylamine (PEA, or the "love chemical") and the hormones testosterone and estrogen which promote mating.
When we fall in love, our brain releases dopamine, norepinephrine and pheromones consistently, which evoke the pleasure center in the brain leading to side effects such as increased heart rate, insomnia, an intense feeling of excitement, elation, and focused attention.
Coffee and Sleep
Coffee keeps you awake due to the presence of caffeine in it. This caffeine increases dopamine levels in our bodies that stimulates the 'pleasure areas' in our brain making us feel good. It increases the adrenaline secretion in the body and speeds up activity in the brain that keeps us awake.
Chemistry Around Us!!!
Chemical reactions influence the stuff around us, and there are numerous instances where chemicals and chemistry helps us live a better life. The cooking of food, the clothes we wear, fertilizers that we use for crops, cement used for building our houses, the power plants that generate electricity, and many other processes depend on chemistry. The human dependence on this natural science is increasing and to understand this, here are a few examples that highlight the importance of chemistry around us.
Photosynthesis
Photosynthesis involves energy transformation and is a chemical process wherein plants, algae, and some bacteria produce their own food. It is the synthesis of glucose using carbon dioxide and water in presence of sunlight trapped by chlorophyll present in the leaves. The reaction which occurs is depicted as:
6 CO2 + 6 H2O + Light Energy ➜ C6H12O6 + 6 O2
Photosynthesis is the reverse process of respiration. They both are inter-dependent. We get an uninterrupted supply of oxygen, and plants get the carbon dioxide they need. Thus, photosynthesis plays a significant role in our day-to-day life.
Static Shocks
All materials are made up of electrical charges in the atoms of the material. There are equal quantities of electrons (negative charges) and protons (positive charges) that try to balance each other in the universe. Friction between two materials causes these charges to redistribute. The electrons from one atom are transferred to the other.
As we know, like charges repel each other and unlike charges attract each other. Whenever you touch anything that is a good conductor of electricity, the transfer of the extra electrons that have accumulated takes place, and it gives you the static shock. For example, generally in winters, you get a shock when you get out of the car or when you touch the door knob or filing cabinet.
Your body itself is a huge chemical factory wherein one or the other chemical reaction takes place every moment. Most people detest chemistry because of long reactions and difficult chemical names that we see in our books. However, taking a practical approach to understanding this science, that we come across in our everyday life, will help you appreciate it even more.
ok , that's some example evidence of chemistry in our daily life , hope this post will more add you knowledge hehe , and benefit to you , thanks for reading guys ^^
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How will it affect your health to drink too much coffee?
ReplyDeleteif we drink too much coffee the effect will be bad for our body , everything you eat or drink too much thats will be bad effect for your body like you eat too much sugar , too much alcohol and other substance or food
Deleteand for coffee
Up to 400 milligrams (mg) of caffeine a day appears to be safe for most healthy adults. That's roughly the amount of caffeine in four cups of brewed coffee, 10 cans of cola or two "energy shot" drinks. Keep in mind that the actual caffeine content in beverages varies widely, especially among energy drinks.
Although caffeine use may be safe for adults, it's not a good idea for children. Adolescents should limit caffeine consumption. Avoid mixing caffeine with other substances, such as alcohol.
Even among adults, heavy caffeine use can cause unpleasant side effects. And caffeine may not be a good choice for people who are highly sensitive to its effects or who take certain medications.
Women who are pregnant or who are trying to become pregnant and those who are breastfeeding should talk with their doctors about limiting caffeine use.
What chemicals are involved when we cry?
ReplyDeleteThis comment has been removed by the author.
DeleteA salty fluid chock full of protein, water, mucus and oil is released from the lacrimal gland in the upper, outer region of your eye. This fluid, better known as tears, then flows down the surface of your eye, across your face and smears your mascara.
DeleteOf course, not all tears are of the emotional variety. In fact, three types of tears exist, all with different purposes. Basal tears are omnipresent in our eyes. These constant tears are what keep our eyes from drying out completely. The human body produces an average of 5 to 10 ounces of basal tears each day. They drain through the nasal cavity, which is the reason so many of us develop runny noses after a good sobfest.
How chemical reaction about sugar and tea bags into water, and that water become red water?
ReplyDeleteWhat makes the color of water change?
DeleteThe pH and color are not related properties. The pH is affected by the citric acid and oxalic acid associated with the anions previously discussed, as well as other minor components that are likely present. The color comes from some of the many other compounds that are extracted into the water, which number in the hundreds, if not thousands. Some of these compounds are inherently colored - no reaction is required to produce color in the solution.
hi eko, please explain about "If chemistry were compared to a sport, then the study of atomic and molecular properties"? thanks
ReplyDeleteAtomic and molecular physics is an area of specialization in the field of physics. Atomic physicists study isolated, separated ions and atoms, along with electron arrangements and excitation. Molecular physicists investigate molecules that have several atoms. They specifically look at the molecule's chemical bonding, nuclei and electrons when the molecule is in its gas phase. Mathematics and critical thinking are two skills that physicists often rely on in their work.
Deletecan you explain How sleep reactions and cofee and what elements are involved ?
ReplyDeletein our body caffein will be reaction with cortisol hormone
Deleteaffeine strongly affects the activity of the hypothalamic-pituitary-adrenal (HPA) axis: the linked system of hypothalamus and pituitary glands in the brain, and the adrenal glands that sit atop the kidneys. The HPA axis influences the body’s ability to manage and deal with stress, both at rest and during activity.
The adrenal glands secrete two key hormones: epinephrine and cortisol. Epinephrine, or adrenaline, increases respiration rate, heart rate and blood pressure; while cortisol frees up stored glucose, which we need in greater amounts during times of perceived stress.
As you can imagine, for our early hominid ancestors, the ability to quickly access and use stored energy was a helpful feature. However, while this is an excellent acute response to an immediate stress (such as being chased by a bear), it’s a damaging response when the stress is chronic (such as the cumulative demands of our daily modern lives).
Studies in humans have shown that caffeine increases cortisol and epinephrine at rest, and that levels of cortisol after caffeine consumption are similar to those experienced during an acute stress. Drinking coffee, in other words, re-creates stress conditions for the body.
While scientists have some ideas about how caffeine increases HPA hormones, the exact mechanism still remains unclear.
Compounding the problem, people tend to consume more caffeine during stressful periods (as nearly every student during exam season knows well). They add stress to stress, potentially making things even worse.
Rat studies have shown that caffeine consumption during chronic stress increased cortisol, blood pressure, and other negative hormonal events. Chronically stressed rats who consumed caffeine ended up sicker, and died sooner, than rats experiencing chronic stress without caffeine consumption.
this structure of caffein
http://intranet.tdmu.edu.ua/data/kafedra/internal/pharma_2/lectures_stud/en/pharm/prov_pharm/ptn/pharmaceutical%20chemistry/4%20course/25.Alkaloids_indole_and_purine_derivatives..files/image048.gif
Why coffee can cause hypertension?
ReplyDeletecoffe doesn't cause hypertension
ReplyDeleteIn a new study, researchers say a connection between high blood pressure and coffee drinking has been discussed for decades, but no studies have actually established this link. Previous research has shown that coffee temporarily increases blood pressure immediately after consumption, but the body quickly adapts to that effect. Other studies have hinted that there might be a more persistent relationship between coffee drinking and the risk of developing high blood pressure over time.
In this study, which appears in the March 25 Archives of Internal Medicine, researchers tracked the coffee intake and blood pressure of a group of male medical school graduates for 33 years. They found that drinking one cup of coffee a day led to small increases in blood pressure, but long-term coffee drinking did not significantly increase the risk of developing high blood pressure.
People who didn't drink coffee were less likely than coffee drinkers to have high blood pressure, but there was no progressive increase in risk associated with higher levels of coffee intake, according to the researchers.
Researchers say the impact of coffee on the heart and blood vessels may also vary according to how the coffee is prepared. For example, passing boiled coffee through a paper filter removes compounds that have been shown to raise cholesterol levels.
The authors note that studies have shown that stopping coffee drinking can lower blood pressure in people who already have high blood pressure, and the results of this study may not apply to that group of people.