Description
You have been asked to help dietitians in a local community health center to better understand the importance of fat in the diet and particularly how no-fat diets affect the biochemical processes of the body.
Requirements:
A. Explain how lipids, in the form of triglycerides, are broken down to produce ATP, including each of the following:
● the pathways involved in the breakdown
● the substrate(s) and end product(s) of the pathways
,
B. 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
C. When you use sources, include all in-text citations and references in APA format.
Note: For definitions of terms commonly used in the rubric, see the Rubric Terms web link included in the Evaluation Procedures section.
Note: When using sources to support ideas and elements in an assessment, the submission MUST include APA formatted in-text citations with a corresponding reference list for any direct quotes or paraphrasing. It is not necessary to list sources that were consulted if they have not been quoted or paraphrased in the text of the assessment.
Explanation & Answer
A. Explain how lipids, in the form of triglycerides, are broken down to produce ATP, including each of the following:a) The pathways involved in the breakdown • Lipids breakdown involves the oxidation of unsaturated fats to either produce energy or synthesize new lipids from simpler constituent molecules. Lipid metabolism is connected with carbohydrate metabolism, as results of glucose, (for example, acetyl-CoA) can be changed over into lipids.• Lipid breakdown starts in the digestive tract where ingested triglycerides are separated into littler chain fatty acids and in this manner into monoglycerides molecules by enzyme pancreatic lipases.• To get energy from fat, triglycerides should first be broken by hydrolysis into their two principal segments, fatty acids and glycerol, by a process called lipolysis which occurs in the cytoplasm.b) The substrate(s) and end product(s) of the pathways• Β-oxidation oxidizes the fatty acids produced by lipolysis into acetyl CoA, which is then used by the Krebs cycle.• The glycerol that is produced from triglycerides after lipolysis specifically enters the glycolysis pathway as DHAP.• Since one molecule of a triglyceride yields three fatty acid molecules with more carbons in every molecule, fat molecules yield more energy than carbohydrates and are a good source of energy for the human body when glucose levels are low. (“5-3-4. Lipid Metabolism,” n. d.)• The acetyl-Co...
