question archive In this lecture you learned how carbohydrates, proteins, and fats are metabolized for energy inside the cells
In this lecture you learned how carbohydrates, proteins, and fats are metabolized for energy inside the cells
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In this lecture you learned how carbohydrates, proteins, and fats are metabolized for energy inside the cells.
Fats provide 9 kcal/gram, while glucose provides 4 kcal/gram, proteins provide 4 kcal/gram.
Compare and contrast the metabolic pathways of these nutrients and discuss why fats are much more energy-dense than glucose or amino acids.
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Answer:
| fat-fat metabolism occurs in the mitochondria for energy production where it spits into acetyl coenzyme A | Acetyl CoA undergoes into citric acid cycle | Catabolism occurs to produce glycerol and fatty acids. |
| protein-Digestion occurs in the stomach and the duodenum. Three main enzymes: pepsin, secreted by stomach,trypsin and chymotrypsin, secreted by pancreas | TCA cycles digest protein into amino acids | Protein catabolise into amino acids and absorbed by the aid of gastric juices |
| glucose-The pathway for glucose metabolism involves : anaerobic and aerobic. Anaerobic process occurs in cytoplasm while the aerobic cycle occurs in mitochondria and is results to produce energy | Glycolysis is a process describe metabolic pathway. | Glucose reduced into Nicotinamide adenine dinucleotide, pyruvate and energy used to produce adenosine triphosphate (ATP) |
Fats are gives more energy as compared to the protein and glucose that is about 9 calories twice that produce by protein and glucose.It is so because fats are efficient form of energy and the body stores excess energy in the form of fat .Fat is the slowest source of energy while most energy-efficient form of our meal.
