Fat provides

Question

Fat provides

BlackTom AI · Accepted Answer

Motivation for fat energy values requires recalling standard nutrition conversions and typical energy density.
Option 1: '9 calories or 17 kJ per gram.' The 9 kcal/g figure is accurate for fat, but the corresponding kJ value is incorrect here, since 9 kcal equals about 37 kJ, not 17 kJ. This combination mixes a correct kcal with an incorrect kJ conversion.
Option 2: '9 calories or 37 kJ per gram.' This pairing aligns with standard dietary energy data: fat provides roughly 9 kilocalories per gram, and when converted, about 37 kilojoules per gram. The two numbers are consistent with the energy density of fat.
Option 3: '4 calories or 37 kJ per gram.' The 4 kcal/g figure is characteristic of carbohydrates or protein, not fat. Therefore this option mismatches the energy density type, making it incorrect despite the correct kJ value.
Option 4: '4 calories or 17 kJ per gram.' This option is incorrect on both counts: 4 kcal/g is not fat, and 17 kJ/g is the wrong energy conversion magnitude for fat even if the kcal value were mistaken.
In summary, the key idea is that fat stores about 9 kcal per gram, which converts to roughly 37 kJ per gram, while other macronutrients have different energy densities and the listed alternatives mix incorrect pairings.

Fat providesSingle choice

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