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Question 4. Explain how no-fat diets can affect the body (e.g., nutrient absorption, essential fatty acids), including each of the following:
• the molecule, or class of molecules affected
• how the absence of fat influences the availability of the molecule, or class of molecules
• the consequence(s), at the biochemical level (i.e., not simply physiological changes), of the change in availability
Answer: Fat or lipid is an important biomolecules of our body which has no less function than any other biomolecules.
There are some important functions which are completed by lipids such as (Satyanarayana, 2011):
• Triglycerides works as fuel reserve in animals body which during starvation or no fed state provides energy to the body.
• Cell membrane is composed of phospholipids and also cholesterol makes cell membrane permeable and provides fluidity to it.
• There are four fat soluble vitamins such as Vitamin A, D, E and K are present in our body which requires lipids for their transportation inside the body.
• Some of the vital organ of our body requires more protection and they cannot resist any kind of jerk or shock. Lipids which covers these systemic organs provides a buoyancy and shock absorbing properties to them.
• Cholesterol and other lipids is used for the synthesis of steroid hormones such as mineralocorticoids, glucocorticoids, aldosterone, cortisol, sex hormones etc.
• Lipid content of body keep body warm by preserving body temperature, so it works as an insulator....
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