Metabolic Equivalents (METS) are used as a physical activity currency to describe the rate of energy expenditure of a physical activity bout. 1 MET is considered as resting energy expenditure. What relative amount of oxygen consumed is assumed equivalent to 1 MET? 3.5 ml/kg body mass/min 5.0 ml/kg body mass/min 5.0 L/min 3.5 L/min

This question refers to the article 'Do all daily metabolic equivalent task units (METs) bring the same health benefits?' Download 'Do all daily metabolic equivalent task units (METs) bring the same health benefits?'State whether each statement is true or false.Group of answer choicesIn all cases, the more daily METs (metabolic equivalent tasks) the betterPhysical activity at work may not provide the same health gains as recreational physical activitySubstituting prolonged sitting with prolonged standing can increase the risk of musculoskeletal and circulatory problems

Rate at which the body uses energy to carry out basic physiological processes*2 pointsbody compositionbody mass indexdiureticsfad dietsmetabolism

A person's body temperature is controlled by the following.convective and radiative heat transfer to the surroundingssweatingrespiration by breathing surrounding air and exhaling it at approximately body temperatureblood circulation near the surface of the skinmetabolic rateMetabolic rate determines the rate of conversion of chemical to thermal energy within a person's body. The metabolic rate depends on the person's activity level. A unit commonly used to express the metabolic rate for an average person under sedentary conditions (per unit surface area) is called met; 1 met is equal to 58.2 W/m2. (Due to the nature of this problem, do not use rounded intermediate values in your calculations—including answers submitted in WebAssign.)(a)How many square feet are equal to 1 square meter? ft2How many Btu/h are equal to 1 watt? Btu/hConvert 1 met (58.2 W/m2) to Btu/(h · ft2). Btu/(h · ft2)(b)Calculate the amount of energy dissipated by an average adult person sleeping for 7 hours if he or she generates 0.8 mets and has a body surface area of 18.8 ft2. Express your results in Btu and joules (1 Btu = 1,055 joules).Express the amount of energy in Btu. Show all conversion steps. =  (0.8 mets)  Btuh · ft21 met( ft2)( h) = BtuExpress the amount of energy in joules. Show all conversion steps.= (the energy in Btu) joules1 Btu = J

Which one of the following statements is TRUE? Question 18Select one:a.In the metabolism laboratory class, we used open-circuit, direct calorimetry methods to measure basal metabolic rate.b.The 2nd Law of Thermodynamics states that the Total Internal Energy contained in a glucose molecule is free energy that is available to drive metabolic processes.c.Resting metabolic rate is calculated under strict standardised clinical conditions and determines the amount of energy expended to sustain vital functions when awaked.Direct calorimetry estimates metabolic rate from the amount of O2 consumed and CO2 produced by a living organism.e.The respiratory quotient indicates the type of macronutrient an organism is predominantly metabolising at the cellular/tissue level.

Exercise is associated with alterations to many basic physiological processes, including changes in metabolism and the cardiovascular system.  As the intensity of exercise rises, both the cardiac output and oxygen consumption increase, as shown in Figure 1.Figure 1  Changes in cardiac output and oxygen consumption in response to various levels of exerciseThe cardiac output CO represents the volume of blood pumped by the heart in 1 minute.  The CO is calculated from the heart rate HR and stroke volume SV using the equationCO = HR ∙ SVEquation 1Experimental data has shown that the HR increases linearly with the exercise output Eout, leading to the relationshipHR = 0.65 ∙ Eout + 75Equation 2The metabolism of nutrients consumes oxygen and generates carbon dioxide as a waste product.  The amount of carbon dioxide generated depends on the type of macronutrient that is consumed.  For example, when carbohydrates are metabolized, every liter of oxygen consumed causes the generation of 1.0 liter of carbon dioxide.  Alternatively, the metabolism of fats leads to 0.7 liters of carbon dioxide per liter of oxygen, and the metabolism of proteins generates 0.8 liters of carbon dioxide for each liter of oxygen. Question 56While exercising on a treadmill, a person has a cardiac output of 15 L/min and produces carbon dioxide at 0.091 mol/min.  What is their ratio of metabolizing carbohydrates to fats during the exercise?  (Assume all gasses are ideal and are at STP.)A.1:2B.1:1C.1:0D.2:1Submit