In this paper, we suggest that you discuss the question of which substances have no taste. In fact, there are a lot of such substances on our planet. We will consider the most common that we find in everyday life.
So which substances have no taste? Surely everyone tried chewing gum. When you come to the store, your eyes run up from such a choice. But in fact, chewing gum has neither taste nor smell. You will find out about this if you read the article to the end. Or take the most widespread substance of our planet - water. If you drink pure water, which is difficult to obtain even in laboratory conditions, then you will not feel any odors. Right now, let's talk a little more about the H 2 O molecule.
Water
The first answer to the question of which substances have no taste, we decided to isolate just water. Why? It's simple, water is the source of life on our planet. It has many properties that make it possible for us all to live. As a result of various processes, water is polluted, so why do we never feel the need for fresh and clean water for drinking? Water is an inexhaustible source, and we get fresh water as a result of the circulation of substances in nature. But this relates to a slightly different topic.
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Now we turn directly to the question of the article. What substances have no taste? Biology, which is taught in a school course, must necessarily contain this topic. So why do we not taste or smell when we drink water? Let's remember why and how we smell, taste? This becomes possible as a result of the functioning of special nerve endings, they are called "receptors". They are able to respond to irritants. So nerve impulses are transmitted to the brain, only then we understand what it smells or what color is in front of us.
Each receptor responds to one specific stimulus. If we do not feel the smell of water, then in our body there is no such receptor on which water would exert an irritant effect. Of course, we are not talking about river water (we smell it from afar), about that which comes from our tap (it has both color and a specific smell). The smell, color and taste of the water give the impurities that it contains.
Metals
In the question of. which substances have no taste, we decided to highlight some metals. Surely every home has items made from:
- silver;
- gold;
- platinum;
- gland;
- semiprecious stones;
- precious stones.
If you find in your home at least one of the presented components, then try to taste it or try to catch the smell. From this experience, we found that these things are odorless and tasteless. Also in this group can be attributed a lot of minerals.
But everyone knows the so-called metallic smell. Agree, now this is very contrary to everything that was said above. Remember, metals do not have a smell, and we get a metallic smell as a result of the interaction of human skin with metal.
Scientists have been able to prove that the metallic smell is actually the smell of human sweat. Many people feel such an unpleasant and caustic smell if they admire old coins. As a rule, they are made of the following metals:
After studying the reactions that occur during the contact of these coins with the human body, it turned out: this βaromaβ is the result of the interaction of acid with phosphorus and carbon. This was the result of a study by chromatography. As a result of the interaction of the above substances are formed:
It is these substances that have such an unpleasant odor.
Chewing gum
The question examined in our work (which substances have no taste) is studied by grade 8 biology. It is at this moment that an acquaintance with the human body takes place, including that children will learn what receptors are. We already mentioned earlier that chewing gum also has no taste or smell. But we are used to tasting its aromas and incredibly diverse tastes. Here, everything happens according to the same pattern as we analyzed with water. Chewing gum, in its original form, cannot have a smell, it is added on purpose.
Remember what happens if you chew it for too long. Of course, the taste completely disappears, it becomes "rubber". This is due to the fact that all additives evaporate. Chewing gum itself is a mixture of elastic compounds, and food additives give it a taste.
Potato starch
So which substances have no taste? In this category we can include starch. We decided to write about its most common types. About potato and rice.
Future housewives must remember that starch does not have a smell or taste, since in stores we often encounter fakes. For example, instead of starch they can give sweet potato flour with various impurities. Outwardly, it is impossible to distinguish them; pay attention to the fact that starch does not have a smell or taste, while flour will have a rather unpleasant aroma, and the taste of the dish will be unpleasant.
Rice starch
If you compare potato and rice starch, then the second will be much smaller. Remember that starch should not have a taste, a slight smell is allowed. However, it should not have a musty, sour or rotten aroma. Be careful, there are often fakes in stores that can spoil any dish.