BIOLOGY
PROTEINS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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4
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6
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7
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9
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Detailed explanation-1: -Carbohydrates provide 4 calories per gram, protein provides 4 calories per gram, and fat provides 9 calories per gram.
Detailed explanation-2: -Each gram of carbohydrate and protein yield 4 calories/gram.
Detailed explanation-3: -A gram of protein has 4 calories. A gram of fat has 9 calories-more than twice as much as the other two.
Detailed explanation-4: -A gram of protein is always four calories, but you will have to use energy to digest it. The energy needed to digest protein is 0.8-1.2 calories per gram, leaving you effectively with 2.8-3.2 surplus calories per gram of protein. Pure amino acids are “pre-digested” and should thus be quite close to 4 calories per gram.
Detailed explanation-5: -By consuming 10 g of protein, a person will get (10*4) calories, that is, 40 calories.