The Function of Lips and Their Biological Significance Essays

The Function of Lips and Their Biological Significance Lipids are biological molecules and are insoluble in aqueous solutions but are soluble in organic solvents. Specific lipids have a physiological importance to humans; they have three major functions; serving as structural components of biological membranes, act as vitamins and hormones, provide energy storage (triaculglycerols). Lipids are made up of the elements carbon, hydrogen and oxygen. Lipids can exist as fats, oils and waxes. Fat and oils are similar in structure as they are triglycerides, however, they physically differ at room temperature fats are solid and oils liquid. Their differences in property are what help contribute to its†¦show more content†¦This is useful as fats and oils release roughly twice as much energy in comparison to carbohydrates. Triglycerides have a high proportion of hydrogen atoms relative to oxygen atoms and therefore yield more energy compared to carbohydrates; this is the result of fats being reduced more than carbohydrates. As fats have a lower proportion of oxygen compared to carbohydrates more of the oxygen in respiration of fats comes from the atmosphere; equally in the oxidation of carbohydrates a greater proportion of oxygen is present in the molecule itself. Fat resultantly forms a concentrated, insoluble energy store; lipids are non-polar causing them t o be insoluble in water. Fat is significant for animals that endure long unfavourable seasons. This is due to fat conducting heat very slowly; consequently having a layer under the skin insulates metabolic heat in. Oils are a major energy store in seeds and industrially are extracted for human use. The bonds between the fatty acid chains are what make them different. The three fatty acids could be identical or not, a fatty acid may have single bonds making it a saturated lipid. These are more commonly known as fats and are solid at room temperature. Lipids can also occur as waxes or steroids depending on the structure of the lipid as well as the amount of fatty acids and glycerol’s.Show MoreRelatedDifferent Theories That State The Humans Are Biological And Symbolic Species1555 Words   |  7 Pages. There are many theories that state the humans are biological and symbolic species. These assumptions came about the onset of evolution. Due to evolution, various events in the human history have transpired, as far as, alterations in our biological construction and functions of the living organisms. As humans beings, we are able to adapt and change in our society; for instance change our religion, politics etc and this itself is a form of evolution. Therefore, in the reading by Mihaly CsikszentmihalyRead MoreThe Most Influential Text is the Bible1558 Words   |  6 Pages The Bible is widely regarded as perhaps the most influential text in the record of human history. Both Judaism and Christianity hold the Bible in high sp iritual regard, due to its function as the basis for these two respective religions. The Bible serves as a single divine anthology, comprised of a series of books that have been meticulously composed by hundreds of authors over hundreds of years (Armstrong, 2007). Over the course of human history, the stories, lessons, and parables found withinRead MoreThe Effect Of Fiber On Blood Pressure Readings1961 Words   |  8 Pagessystolic (95% CI, –2.2 to 1.0) after magnesium supplementation (Streppel, 2005). Western countries meet less than the recommended amount of fiber (Streppel, 2005). 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However, on the basis of numerous research works, it isRead MoreWhat Protective Effect Of Α -lipoic Acid ( La ) Against Oxidative Stress And Apoptosis1696 Words   |  7 Pagespainful, inflammatory and debilitating adverse effect of cancer therapy. It occurs in about 50% of cancer patients under standard doses of chemotherapy and in almost 80 % of patients who received high doses of anticancer treatment (1). The mucosa of the lips, tongue, mouth, floor of mouth and soft palate are easily affected by antineoplastic agents such as Methotrexate (MTX) than keratinized hard tissues (2). It is generally accepted that MTX can induce o ral mucositis via its direct inhibitory effectsRead MoreThe Extensive Functions Of The Various Anatomical Structures1884 Words   |  8 PagesThe extensive functions of the various anatomical structures of the brain are constantly being studied due to the complexity of this organ. Often times its many roles are taken for granted including speech. Speech involves a complex planning process as well as the ability to execute it properly by coordinating and managing the movements of the mouth and tongue. When specific brain injuries occur this function is compromised in what is known as apraxia. This is a speech disorder where a personRead MoreSports and Fitness Center3804 Words   |  16 Pageslower-extremity disability, use of a recumbent bicycle in place of a stand-up bicycle for a person with poor upper-body control) and the intensity, frequency, and duration of the activities. With some individuals who are lacking in balance and pulmonary function, additional exercises may hav e to be added to the exercise prescription. This study will promote sports and fitness facility for people with disabilities to reduce secondary conditions (eg, obesity, hypertension, pressure sores), to maintain functionalRead MoreSports and Fitness Center3819 Words   |  16 Pageslower-extremity disability, use of a recumbent bicycle in place of a stand-up bicycle for a person with poor upper-body control) and the intensity, frequency, and duration of the activities. With some individuals who are lacking in balance and pulmonary function, additional exercises may have to be added to the exercise prescription. This study will promote sports and fitness facility for people with disabilities to reduce secondary conditions (eg, obesity, hypertension, pressure sores), to maintainRead MoreBlack swan: Madness of swan queen:2327 Words   |  9 Pagesgive her a second chance. It is not surprising that Nina didn’t get the part, but the story does not just end up here, when the fragile, gentle side of Nina accepts this news, Thomas kisses Nina against her will and Nina reacts hostilely by biting his lip. It is this change character convinces Thomas to cast her as the Swan Queen. This first unseen side of Nina paves the transformation happening in the later stage. During rehearsal, Nina has difficulty grasp the essence of black swan, and the over demandingRead More Protecting the Great Barrier Reef Dugong Essay3750 Words   |  15 Pagesforward on the body, and a broad, flattened tail. The ochre brown skin of a dugong appears smooth, but a close view reveals a rough surface covered in pits with short, thick hairs. Dugongs have two nostrils near the top of their heads on a fleshy lip, which can curl up to make breathing easier on the surface (Reynolds et al. 1991). The name sea cow refers to the fact that dugongs graze on seagrasses that form meadows in coastal waters. As dugongs feed, whole plants are uprooted and a telltale