Typical foods produce 9 cal/g for their fat content and 4 cal/g for their protein and carbohydrate content. if a typical apple w

Question

adell

9 days ago

13

Typical foods produce 9 cal/g for their fat content and 4 cal/g for their protein and carbohydrate content. if a typical apple w

eighs 225 g and is 84% water, 14% carbohydrate, and 0.5% fat, how many calories of food energy does an apple provide?

Health

2 answers:

guajiro [1.3K] · Answer 1 · 2026-03-31T03:27:17+03:00

Answer:

An apple yields a total of 136.125 calories.

Explanation:

Given that

an apple weighs 225 grams, comprised of 84% water, 14% carbohydrates, and 0.5% fat.
Additionally, typical foods yield 9 calories per gram from fat and 4 calories per gram from carbohydrates and protein.

Therefore, to find the answer, we must calculate the grams of fat and carbohydrates.

Using the provided percentages, we determine that

Fat: $(0.5\%)(225g)=0.005(225g)=1.125g$

Carbohydrate: $(14\%)(225g)=0.14(225g)=31.5g$

The apple contains 1.125 grams of fat and 31.5 grams of carbohydrates.

With 9 calories per gram of fat, the total from fat would be

Fat: $1.125g(9\frac{cal}{g})= 10.125cal$

With 4 calories per gram for carbohydrates, the total would be

Carbohydrate: $31.5g(4\frac{cal}{g})= 126cal$

Thus, the apple contributes 10.125 calories from fat and 126 calories from carbohydrates, leading to an overall total of 136.125 calories.

BARSIC [1.4K] · Answer 2 · 2026-03-31T03:28:58+03:00

In general, apples are composed of 84% water, 14% carbohydrates, and 0.5% fat, summing up to 98.5% of the composition, with the remaining part being indigestible components like seeds and fibers, such as the skin. To ascertain the calorie count of a 255 g apple, first find the weights of carbohydrates and fats and calculate their energy contributions, noting that water provides no caloric content because it lacks carbon.

Carbohydrate content: ((255 g*0.14)* 4 cal/g = 142.9 cal
Fat content: ((255 g*0.005)*9 cal/g = 11.475 cal
Total: 154.375 cal for a 255 g apple.