Energy expenditure, intake and balance
Task 1 [P3, M1]
Describe/explain potential sources of energy intake and expenditure and the factors that affect intake and expenditure such as basal metabolism, age, gender, climate and physical activity.
Food is a source of energy intake as it contains carbohydrates; there main function is to store energy in the muscles. Carbs are a macronutrient and come in two different forms, simple which are foods like chocolate and sweets these release energy quickly, the other form is complex which are foods like pasta and rice they release energy slower so are better to keep energy for a sustained period of time. There are certain factors that affect energy intake for instance what gender you are affects how much energy you need, a male’s guideline daily amount is 2500 calories where as a female’s is only 2000 calories. Exercise is a form of energy expenditure; it uses up the energy that has been stored in the muscles and causes the body to lose fluids through sweat. There are also factors that affect energy expenditure such as basal metabolism; this is the amount of energy expended when at rest, the higher the metabolism the more calories you burn meaning that certain people will have to replace more energy than others. Climate is another factor that affects expenditure this is because people in hotter climates lose more energy through sweat than people in cooler climates.
(200-300 words)
Task 2 [M1]
Explain why different nutrients have a differing effect on an individual’s energy intake.
Different nutrients have a differing effect on an individual’s intake because each nutrient releases a unique amount of energy and also the speed the energy is released varies for each one.
For instance the macronutrient carbohydrates are the body’s main source of energy intake therefore they release the most energy, but even carbohydrates are split in to two groups when determining the speed the energy is released. The two groups are simple carbs and complex carbs, simple
Describe/explain potential sources of energy intake and expenditure and the factors that affect intake and expenditure such as basal metabolism, age, gender, climate and physical activity.
Food is a source of energy intake as it contains carbohydrates; there main function is to store energy in the muscles. Carbs are a macronutrient and come in two different forms, simple which are foods like chocolate and sweets these release energy quickly, the other form is complex which are foods like pasta and rice they release energy slower so are better to keep energy for a sustained period of time. There are certain factors that affect energy intake for instance what gender you are affects how much energy you need, a male’s guideline daily amount is 2500 calories where as a female’s is only 2000 calories. Exercise is a form of energy expenditure; it uses up the energy that has been stored in the muscles and causes the body to lose fluids through sweat. There are also factors that affect energy expenditure such as basal metabolism; this is the amount of energy expended when at rest, the higher the metabolism the more calories you burn meaning that certain people will have to replace more energy than others. Climate is another factor that affects expenditure this is because people in hotter climates lose more energy through sweat than people in cooler climates.
(200-300 words)
Task 2 [M1]
Explain why different nutrients have a differing effect on an individual’s energy intake.
Different nutrients have a differing effect on an individual’s intake because each nutrient releases a unique amount of energy and also the speed the energy is released varies for each one.
For instance the macronutrient carbohydrates are the body’s main source of energy intake therefore they release the most energy, but even carbohydrates are split in to two groups when determining the speed the energy is released. The two groups are simple carbs and complex carbs, simple