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Fat is the richest source of all the macronutrients. One gram of fat contains 9 calories wheras the other macro nutrients like carbohydrates or protein give only 4 calories. So when fat is metabolized it gives in lot of energy.

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15y ago

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Why do human cells rely far more on glucose and fat for energy than on protein?

More energy is available to us aerobically (fat can only be metabolized aerobically), the high energy needs of endurance MORE


What happen when the body is supply with more energy that it burn?

It stores the excess energy in the form of fat cells, to be metabolized when needed at a later time.


What release twice as much energy in your body as do carbohydrates?

fat. that is why fat people are so athletic, and smarter than everyone else. they store all that energy in their body and that is why they are power athletes. cuz they release all that double energy and boom its on!


When 1 gram of each what is metabolized which yields the greatest amount of energy?

1 gram of fat yields the greatest amount of energy when metabolized, providing 9 calories, compared to 4 calories from 1 gram of carbohydrates or protein.


Which food item produces more heat energy and why?

High-fat foods like nuts and oils produce more heat energy when metabolized compared to carbohydrates or proteins. This is because fats contain more carbon-hydrogen bonds that release more energy when broken down during metabolism.


What nutrients yield the highest amount of energy per gram when metabolized?

starch is the nutrient that provides greatest amount of energy. during the process of digestion starch is converted into maltose which is then converted into glucose. breaking down of 1 glucose molecule provides 2780kilo joules of energy.


When protein consumption is in excess of body needs and energy needs are met the excess amino acids are metabolized and the energy in the molecule is?

Our bodies cannot store excess protein once it is consumed, so the excess amino acids are converted to carbon skeletons that are turned into glucose or fat and then stored as fat or metabolized for energy needs. **stored as glycogen & fat** jmata~


Why does the body prefer to metabolize carbohydrate over fat?

because carbohydrate is more readily accessible to cells in the body. although fats contain far more larger quantities of energy when metabolized, it does have a negative effect in the body. metabolism of fat into energy will release a by-product called ketones. ketones will lower the pH of the blood making it more acidic - a condition called ketoacidosis. and besides brain cells use only one source for their energy and that is glucose.


What happens to the fat released from its stores when you start exercising?

It is metabolized by the liver to be converted to simple sugars and used by the cells for energy.


Does alcohol have any nutritional values?

In a sense. Alcohol is metabolized into acetate by the liver, which is then burned for energy. However, it is burned in place of fat that would otherwise be metabolized. The fat is then stored (one cause of the famous "beer belly"). So, it does provide energy, but at the cost of screwing up your fat metabolism. Since the fat would have been burned in place of the acetate (were it not present) there is no real gain and considerable harm.


Why is fat a more efficient storage mode for energy?

Fats contain carbon, hydrogen, and oxygen. They have a high proportion of hydrogen which makes them a more concentrated form of energy than either carbohydrates or protein. Each gram of fat or oil produces about 9 Calories of energy. Fats are the primary source of energy during prolonged aerobic exercise. The release of energy from fat requires more oxygen than the release of the same amount of energy from carbohydrates. Fat metabolism therefore puts a greater strain on the oxygen transport system.Taken from: fat


Is sugar is a fat?

No. Sugar is a carbohydrate, and an important source of energy for the body. However, if you consume more sugar than your body can burn, the partially metabolized glucose (sugar) molecules reassemble into fatty acids. In other words, if you eat more sugar than your body needs, it will become fat.