Final answer:
People accumulate more diglycerides in muscle cells due to factors such as low physical activity post-eating, excess caloric intake leading to fat storage, and hormonal regulation of fat release. Triglycerides are stored in fat cells for later use as energy, with composition affected by dietary intake and metabolic processes.
Step-by-step explanation:
The major reasons some people tend to accumulate more diglycerides in their muscle cells than others can be attributed to a combination of dietary intake, physical activity, and metabolic processes. When energy is exerted shortly after eating, dietary fats and sugars will be used immediately. If physical activity is not performed, excess glucose is stored as glycogen in the liver and muscle cells, or as fat in adipose tissue. Excess dietary fat is stored as triglycerides in adipose tissues. Triglycerides, which contain more than twice as much energy as carbohydrates, are a major fuel source and are stored in adipose cells for later use. When there is more glucose than required, the excess is converted into fatty acids, which are then stored as triglycerides. Additionally, certain hormones trigger the release of stored triglycerides into the bloodstream between meals to provide energy.
Excess blood glucose can lead to an increase in urea conversion into fatty acids, which are stored in areolar cells, thus increasing body fat. Moreover, the composition of lipoproteins indicates that proteins, which are denser than triglycerides, influence the overall density and accumulation of lipids in the body.