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Biological significance of lipids
Biological significance of lipids
State biological significance of lipids
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Lipids Lipids, along with carbohydrates and proteins are an important part of the human diet in order to maintain a healthy biological system. Lipids serve many important functions, including adenosine triphosphate (ATP) synthesis and cell membrane composition. The human body can synthesize most of its own (ATP)/energy, however, lipids are still needed to be consumed to receive the omega 3 and omega 6 fatty acids, which is the only fatty acid that the body cannot synthesise. There are a variety of foods that lipids are found in, and there is a recommended daily intake to be consumed each day. If there is too little or too much, it could cause some health concerns. Lipids can be categorised into four classifications; simple lipids (fatty acids, …show more content…
Omega 3 is located on the third carbon of certain fatty acid chains and omega 6 is located on the sixth carbon of certain fatty acid chains creating the double bonds (points of unsaturation) on the unsaturated fatty acids from the methyl end (Whitney et al., 2014, p.123). It is important to ensure the omega 3 and omega 6 is included in the diet as this helps to form the substrate for enzymes to prevent cardiovascular disease (Mori, …show more content…
Insufficient amounts could be seen in the skin and felt in the eyes, as they would lack moisture and look and feel dry, thus leading to rashes and other skin problems. This is just the start of lack of lipids. Disorders relating to a deficiency of omega 3 may include restricted growth, visual and brain problems, reproductive failure and liver and kidney disorders (Noomhorm, Ahmad, & Anal, 2014,
plants and adorable little animals, have you ever wondered what makes all living things? Lipids are
In order to determine which fish oil supplement is best for us, we must first have a greater understanding of how each constituent is molecularly structured and how it is readably absorbed into the body. Triglycerides by definition are the main constituents of animal fats and vegetable oil. TG is a chemical compound that is formed from three fatty acids and one molecule of glycerol, as seen in Figure 1: The Molecular Structure of a Triglyceride.
Acid or base-catalyzed hydrolysis yields the component fatty acid, some examples of which are given in the following table, together with the alcohol component of the lipid. These long-chain carboxylic acids are generally referred to by their common names, which in most cases reflect their sources. Natural fatty acids may be saturated or unsaturated, and as the following data indicate, the saturated acids have higher melting points than unsaturated acids of corresponding size. The double bonds in the unsaturated compounds listed on the right are all cis (or
Another type of fatty acids that is often found in the diet are omega-6 fatty acids. In contrast to omega-3, these fatty acids are unsaturated fatty acids, which when taken in large amounts, can cause inflammation and lead to negative health effects.
Fatty acids such as linoleic acid, linolenic acid and arachidonic acid are known as essential fatty acid because they cannot be synthesized in the body so must be supplied in the food. Human being lacks the ability to introduce double bonds in fatty acids beyond carbons 9 & 10. About 20 different fatty acids are synthesized from the two essential fatty acids linoleic acid and linolenic acid. Omega three fatty acid is synthesized from linolenic acid and omega six fatty acid is synthesized from linolic acid.
In this lecture, it talks about fat and how it affects us and our bodies. There are two main different types of fat, saturated and unsaturated. Many types of saturated fat are found in meat and dairy products. These fats are hard to break down for cells, because of this, they tend to get tucked away and build up over time if worked off. Unsaturated fats are found in olive oil and other plant oils. These types of fat are readily consumed for energy.
Polyunsaturated fats examples include liquid cooking oils like corn oil, sunflower oil, safflower oil, soy oil, nuts such as walnuts, seeds, fish, seafood, polyunsaturated margarine. Polyunsaturated fats are essential fats required for normal body functions. Since human body cannot make them, we must get them from food. Polyunsaturated fats are important for blood clotting, to build cell membranes, the nerve coverings, muscle movements, controlling inflammation, etc. Consuming products with polyunsaturated fats in place of saturated fats or highly refined carbohydrates reduces harmful LDL cholesterol improving cholesterol profile. A polyunsaturated fat contains two or more double bonds in its carbon chain. The two main types of polyunsaturated fats are omega-3 fatty acids and omega-6 fatty acids. The numbers refer to the distance between the beginning of the carbon chain and the first double bond. Both types offer health benefits and lowers
The main difference between the two is based on whether the body can produce them or not. Essential fatty acids must come from the diet or dietary supplements because they can not be synthesized by the body, while the body can produce non-essential fatty acids though they still can be ingested from the food. Basically, there are only two kinds known to be essential fatty acids for humans: alpha-linolenic acid, an omega-3 fatty acid, and linoleic acid, an omega-6 fatty acid. However, there is some other essential fatty acids categorized as conditionally essential which become essential under some disease or developmental conditions such as docosahexaenoic acid and gamma-linolenic acid. Age, gender and many factors impact the need for the omega acids and the rate in which they have to be consumed. Generally, the amount of omega 6 should to be lower than that of omega 3. The primer functions of the essential fatty acids are to maintain healthy cell membranes, help to produce hormone-like substances, help with the regulation of blood flow, and important for brain development and function. Good sources of omega-3 fatty acid are leafy green vegetables, fish and their oils and eggs when omega-6 fatty acid is found in meat and vegetable oils and processed foods that made with these
The body can manufacture only vitamin D; all others must be derived from the diet. Lack of them causes a wide range of metabolic and other dysfunctions. In the U.S., since 1940, the Food and Nutrition Board of the National Research Council has published recommended dietary allowances (RDA) for vitamins, minerals, and other nutrients.
“If we could give every individual the right amount of nourishment and exercise not too little not too much, we would have food the safest way of health” (Barasi.E.M, 2003). This essay is going to discuss on the important of six essential nutrients in human body. According to PosnerB.M (1998), he define essential nutrients as a nutrients that the body cannot synthesize on its own-or not to an adequate amount and must be provided by the died. Oxford dictionary (2009), also define essential nutrients as are those nutrients that are required by the body and cannot be synthesise in the adequate amount to meet requirement, so must be provided by the diet. Essential nutrients are those found to be essential to human life and optimal function, Williams.M. H (2006).There are six main type of nutrients used to maintain body health. They are carbohydrates, protein, fat, vitamins, minerals and water. They must be in balance for the body to function properly.
The omega-3 fatty acids, popularly referred to as fish oil, are considered unsaturated fats. Science differentiates between unsaturated and saturated fats quite clearly. One fact that separates the two is the temperature at which melting occurs. Saturated fats melt at a higher temperature than unsaturated fats. The science behind fatty acids is rather complex; carboxylic acids with long hydrocarbon chains are the building blocks of saturated and unsaturated fats. This is important to the human body for many reasons; one reason being unsaturated fats do not cause plaque build-up in arteries like saturated fats due to their molecular structure in the human blood stream.
Fats: Fats or lipids are important in diet to provide the body with energy. The British Nutrition Foundation state that fats are made up of amino acids. There are two types of fats they are saturated and unsaturated. Saturated fats are solid at room temperature such as cheese, butter etc. Too much saturated fats increase the risk of heart disease. Whereas unsaturated fats are liquid at room temperature such as nuts, vegetable oil etc. These maintain healthy cholesterol levels.
Saturated fats come from animal sources like steak, hamburger and pork. Unsaturated fats are derived from plants. There are also trans fats that are considered poison for the body. They raise the bad cholesterol in your body, and should never be included in a healthy diet. There are also fatty acids like omega-3 and omega-6 that are good for a healthy body.
There are many more lipids than I have mentioned in my research paper, there are over a 100 know lipids. Lipids are very important for our body and cells and they carry out many function. They provide nutrients for our body. Lipids are a category of nutrients. Lipids consist of fats, oils, and waxes and are very important for are body’s health. Lipids are important for the human body because they are for storing energy, they’re good at storing energy because they can concentrate a group of calories in a smaller area. Lipids are also used to make soaps, detergents and waxes. These are things that we use in every day life.
As they always say HEALTH IS WEALTH! Your food selection today, makes you enjoy for the moment and affects your health tomorrow and in the future!