Cardiopulmonary Anatomy & Physiology
Cardiopulmonary Anatomy & Physiology
7th Edition
ISBN: 9781337794909
Author: Des Jardins, Terry.
Publisher: Cengage Learning,
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Chapter 8, Problem 5RQ
Summary Introduction

Introduction:

Respiration is a process that involves the exchange of gases between cells and systemic capillaries. The respiratory quotient represents the ratio between the amount of carbon dioxide produced in per unit oxygen consumed. It is represented by RQ.

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The steep part of the O2-Hb dissociation curve... a. is where CO2 unloading occurs at the tissue cells b. is where the PO2 is high (>90mmHg) c. is where the oxyhemoglobin is high (>90 % saturated) d. is where O2 unloading occurs at the tissue cells
Part I: Use the information below to answer the following questions:   Subject A: 80 kg VO2max = 54 ml/kg/min RER (respiratory exchange ratio (VCO2/VO2) ) @ 70% VO2max = 0.93 Subject B: 70 kg VO2max = 38 ml/kg/min RER @ 70% VO2max = 0.94   a) Who is burning more total kcals at 70% VO2max?   b) Who is burning more CHO kcals at 70% VO2max?   c) Who is burning more absolute CHO kcals at VO2max?   Part II: Using the information from question #2, calculate the grams of carbohydrates and the grams of lipids that each subject (A and B) is utilizing per minute at 70% VO2max.   3. You are running on the treadmill at the Rec Center and you overhear someone telling their friend that "you burn more absolute fat (kcal/hr) running at 5mph than you do at 7mph".
Do the following conditions cause hemoglobin to release more O2 to the tissues or to absorb more O2?(a) Raising the temperature(b) Increased production of CO2(c) Increasing the H+ concentration
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