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Chapter 6: Problem 95

The number of kilocalories per day required by a person resting under standard conditions is called the basal metabolic rate (BMR). (a) To generate 1 kcal, Jermaine's body needs approximately 0.010 mol of oxygen. If Jermaine's net intake of oxygen through breathing is 0.015 mol/min while he is resting, what is his BMR in kcal/day? (b) If Jermaine fasts for 24 h, how many pounds of fat does he lose? Assume that only fat is consumed. Each gram of fat consumed generates \(9.3 \mathrm{kcal}\)

Short Answer

Expert verified
kcal per minute = 1.5 kcal/min #tag_title# Step 2: Convert kcal/min to kcal/day #tag_content# To find out how many kilocalories Jermaine consumes in one day, we need to convert the rate from kcal/min to kcal/day: kcal per day = kcal per minute * minutes per day kcal per day = 1.5 kcal/min * (24 hours/day * 60 min/hour) kcal per day = 2160 kcal/day #tag_title# Step 3: Calculate weight loss from fasting #tag_content# To calculate the amount of weight Jermaine would lose after fasting for a day, we'll need to use the energy generated from consuming fat (9 kcal/g). First, we need to find out how many grams of fat Jermaine's body would burn to generate 2160 kcal: grams of fat burned = kcal consumed / kcal per gram of fat grams of fat burned = 2160 kcal / 9 kcal/g grams of fat burned = 240 g Therefore, Jermaine would lose 240 grams of weight from fat after fasting for a day. #Answer# Jermaine would lose 240 grams of weight from fat after fasting for a day.

Step by step solution

01

Calculate kcal consumed per minute

Given that Jermaine's body needs 0.010 mol of oxygen to generate 1 kcal, we can calculate how many kcal he consumes in one minute by multiplying his net intake of oxygen by the conversion factor: kcal per minute = Net intake of oxygen * kcal per mol of oxygen kcal per minute = 0.015 mol/min * (1 kcal/0.010 mol)

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