Carbohydrates and Proteins provide most of the energy in our diet
carbohydrates
1. Adequacy: The diet should provide all the essential nutrients, fiber, and energy in amounts sufficient to maintain health. 2. Balance: the diet should provide foods of all types in proportion to each other such that foods high in some nutrients do not "crowd out" foods high in other nutrients. 3. (k)Caloric Control: manage food energy intake. 4. (Nutrient) Density: select foods that deliver the most nutrients for the least food energy. "High nutrient Density." 5. Moderation 6. Variety
carbohydrates
Most diatoms are photosynthetic (they use sunlight to provide them with energy), though some absorb soluble nutrients from their environment.
Fats (lipids) offer the most concentrated energy source (i.e the most kilojoules of energy per gram, compared with other nutrients).
Mitochondria because the release the energy found in food.
the Carbohydrate because for ever one gram of carbohydrate it give you four calories of energy. While the other five nutrients provides you with 3 calories 1 and 1.5. Fats because fats contain the most calories and calories give you a lot of energy
appliances that provide heat energy
Protein and carbohydrates both contain 4 calories per gram and fats contain 9.2 calories per gram. If we are discussing fast energy transfer, simple carbohydrates and fats provide the most available energy
No, it provides bulk which helps with digestion and regularity :) There are only three nutrients that provide energy which are carbohydrates and protein (which both provide 4 calories per gram) and fat (which is the most energy dense, providing 9 calories per gram).
Chocolate fudge cake with ice cream will not provide many nutrients. Most of what it will have is carbohydrats, fats, and sugars. Some nutrients is may provide, though, are a fair amount of calcium and protein.
Because that's where you get the energy from, is the nutrients that is in the feed, hence the TDN that is found in the feed which includes such nutrients as protein, carbohydrates, and fat.