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Old 11-10-2011
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Biochemistry Carbohydrates, Fat, and Protein Calorie Yield!

Metabolism of 100 g of carbohydrate, 25 g of fat, and 20 g of protein yields approximately how many kilocalories?
(A) 300
(B) 500
(C) 700
(D) 900
(E) 1100
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Old 11-10-2011
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@ dr muhamad can you please explain your calculation? Thanks alot.
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Old 11-11-2011
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I agree

Quote:
Originally Posted by docnok View Post
@ dr muhamad can you please explain your calculation? Thanks alot.
100 *4 =400 carbo coz each 1 gram makes 4 kcal
25 * 9 =225 fat coz each 1 gram makes 9 kcal
20 * 4 =80 protein coz each 1 gram makes 4 kcal

400 + 225 + 80 =705
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Old 11-11-2011
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@dr.muhamad thanks alot. I have a nbme form 1998 "Usmle 98 pdf" which has some key questions about the real exam. If you are interested e-mail me at elnojeeu@yahoo.com and I can send it to you and we can share our answers. Let ma know.
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