We store the bulk of our energy as fat. Suppose that on another planet, animals stored all their energy as carbohydrate. In that case, to store the same amount of energy, an alien would have to weigh more than twice as much as an animal on earth. If a human weighed 120 pounds, an alien equivalent storing just as much energy would weigh about 270 pounds. Why?

Question

Biology

Rodney Oneill

8 December, 15:04

We store the bulk of our energy as fat. Suppose that on another planet, animals stored all their energy as carbohydrate. In that case, to store the same amount of energy, an alien would have to weigh more than twice as much as an animal on earth. If a human weighed 120 pounds, an alien equivalent storing just as much energy would weigh about 270 pounds. Why?

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Blake · Answer 1

Because when while oxidizing molecules we are able to obtain more anergy that from fats, far more that from carbohydrates as fats store more potential energy due to the fact they reduce carbohydrates. I hope it is clear. Regards!