A person\'s basal metabolic rate (BMR) gives the number of kilocalories utilized
ID: 1018269 • Letter: A
Question
A person's basal metabolic rate (BMR) gives the number of kilocalories utilized in one day to maintain weight. To lose weight, caloric intake needs to be lower or activity level can be increased. The resting BMR for men can be calculated in kilocalories by using the following formula: BMR(inkcal)=66++(6.23×weight in pounds)(12.7×height in inches)(6.80×age in years)
If a man weighs 166 lb , is 5 ft 11 in. tall, and is 39 years old, what is his basal metabolic rate, rounded to the nearest 10kcal?
If the molar mass of ATP is 507 g/mol, how many kilograms of ATP is used in one day?
Explanation / Answer
ANSWER:
GIVEN: WEIGHT = 166 POUNDS
HEIGHT = 5 FEET 11 INCH = 71 INCH
AGE = 39 YRS
BMR= 66+ [6.23 X WEIGHT] + [12.7 X HEIGHT] - [6.8X AGE]
= 66 + [6.23 X 166] + [12.7 X 71] - [6.8 X 39]
= 66 + 1034.18 + 901.7 - 265.2 = 1736.68 KCAL
ATP (molar mass) = 507 g/mol
Energy = 1736.68 kcal
ATP ENERGY = 7.3 KCAL
No of ATPs = 1736.68/7.3 = 238 ATPs
Total energy used in ATP per day = 238 x 507 g = 120666 g/mol = 120.666 kg/mol
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