1.Explain how dietary lipids are absorbed by the human body.
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1.Explain how dietary lipids are absorbed by the human body.
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- 3. Which o the following is the biological importance of lipids? They have a high energy value (25% of the body needs) and provide more energy than carbohydrates and proteins, but carbohydrates is the more preferrablesource of energy. Supply the essential fatty acids that cannot be synthesized in the body. Supply the body with fat soluble vitamins A, D, E and K. Tissue fat is an essential constituent of cell membrane and nervous system. It is mainly phospholipid in nature that are not affected by starvation. All of the above1. Why are eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) important? 2. What are the health effects of lipids?19. What are some possible consequences of consuming megadoses (e.g., 2 to 10 times the RDA or more) of vitamin C? Fishy body odor Liver damage Increased risk of bone fractures Gastrointestinal distress (e.g., nausea, vomiting, diarrhea)
- 1. State several reasons why carbohydrates are usually needed in more amounts than fats in the diet 2. Explain why protein should be included in the diet. 3. What will happen to the human body if we are deficient in particular vitamins and trace elements? Give examples of effects of vitamin and mineral deficiencies. 4. There are 20 amino acids needed to make proteins in the animal body. Why aren't they all considered essential to animal diets? 5. Compare the incomplete and complete digestive systems. 6. What are the functions of accessory organs in a complete digestive system? 7. Explain how digestion is regulated in animals. What are the organ systems involved in regulation of digestion? Explain. 8. What are the health problems associated with nutrition and digestive system? Give atleast 3 examples with explanation1. Explain the processes involved in the tracking down of fatty acid in metabolism (e.g. palmitic acid) after ingestion 2. Give examples of fats or lipid molecules with their biological and/or physiological importance.16. Define what a vitamin is, what are some essential and some non-essential
- 7. Describe how proteins help the body work.2.1. Describe what constitutes a healthy diet.1. What advice, in regard to macronutrient and caloric intake, would you give an individual who wanted to gain lean mass (muscle mass) and lose weight? 2. How much protein in g*kg-1 is recommended for the average individual, aerobic athletes, and strength/power athletes? Why would these recommendations be different?
- 10. Which of the following statements is true to lipoproteins? Lipids combine with proteins in the tissues. Lipid component is phospholipid, cholesterol or triglyceride. Present in cellular and subcellular membranes. In the lungs and eyes, acting as surfactant and rhodopsin respectively. O All of the above5. One student has got 300 g of carbohydrates and 50 g of proteins with dinner, another – 300 g of carbohydrates and 50 g of fats. Both did not carry out any physical activity. Explain the difference in the lipoprotein composition in their blood one hour after the meal. For the answer: a) name all types of lipoproteins and describe their structure and functions; b) draw, the schemes explaining the difference in the lipoprotcin formation in both students; c) name the methods used for lipoproteins analysis of serum blood; d) draw the scheme of electrophoresis of serum lipoproteins for both students.1. Explain how a diet low in carbohydrate and fat helps reduce body fat