Direct calorimetry Study guides, Class notes & Summaries

Measurements Chapter 1 Test Questions and Answers How do we measure energy, oxygen consumption, heart rate and multiples of resting metabolic rate? - Answer-we exercise oxygen consumption VO2 Max by absolute (not relating to body mass) and relative (respective of body mass) What's the difference between absolute and relative VO2? - Answer-Absolute VO2 is in not in relation to body mass and uses the unit Liters/Minute while Relative VO2 is in retrospect to body mass, using the unit Mililiter...

What is the focus of the paper? - ANSWER- Understand how the human body maintains itself and performs work Direct calorimetry measures energy utilisation through? - ANSWER- Heat production Indirect calorimetry measures energy utilisation through? - ANSWER- Respiratory Gas exchange What are some limitations to indirect calorimetry? - ANSWER- Dead space in tube, lag of measurements from long tube Aerobic metabolism used directly how? - ANSWER- Resynthesis of ATP Aerobic me...

Anabolism - Uses energy to construct components of cells. Catabolism - Breaks down organic matter, for example, to harvest energy. Nutrient Density - A measure of the nutrient a food provides compared to its energy content. Trace Minerals - Needed only in tiny amounts. These minerals participate in most chemical reactions in the body. These include iron, zinc, iodine, copper, manganese. Protein Complementation - The act of consuming a variety of plant products to provide all the necessary...

* allows for pulmonary ventilation and expired fractions of O2 and CO2 to be a measure - open circuit spirometry Maximal Oxygen Consumption: - The preferred method of measuring VO2 max is - open circuit spirometry the ability to perform moderate-to- vigorous- intensity exercise using large muscle groups in a dynamic and continuous manner for prolonged periods of time - cardiorespiratory fitness (CFR) CFR is dependent on the integration of the ______, ______, _____ systems - cardiorespirato...

Lab 1 - Answer-Body Composition Lab 2 - Answer-Aerobic Capacity Lab 3 - Answer-Caloric Expenditure Lab 4 - Answer-Muscular Power Fat mass categories - Answer--essential fat -storage fat Fat free mass contains... - Answer--protein (muscle) -water -minerals (bone) Essential body fat of males - Answer-3% Essential body fat of females - Answer-12% 8 indirect ways to measure body composition - Answer-1. Height/weight 2. BMI 3. Girth Measurement 4. Waist-to-hip ratio (WHR) 5. Skinfolds ...

What are the 7 fundamental characteristics that separate animals and protist's? (Lec 1) Ans 1. They are eukaryotes 2. Animals are multicellular 3. Animals are diploid dominant 4. Animals have cells that lack cell walls 5. Animals are chemoautotrophic 6. Animals at one point in their life cycle were motile and react to external stimuli due to muscle and/or nervous tissue. 7. Development via Blastula and Gastrula stages What is metabolism? (Lec 2) Ans Metabolism is the sum of all chemi...

Work - product of force and the distance through which the force acts W=Force x Distance Measured in Neutonmeters or Joules Power - how much work is accomplished per unit of time P= W/T Measured in Watts Ergometry - Measurement of the work output Example: Bench step in which the participant steps up and down on a bench at a specified rate -Erogemter, treadmill, cycler Calorie - amount of heat required to raise the temperature of one gram of water by one degree Celcius Direct ca...

BIOD 121 (portage): Module 3 Problem Set Questions and Answers Rated A+ which person is at a greater risk for health issues related to being overweight or obese? Janet has a BMI of 28 and a waist to hip ratio of 0.95. Fred has a BMI of 28.9 and a waist to hip ratio of 0.78. Janet. Both have a BMI that indicates being overweight, but Janet has a more at-risk waist to hip ratio as her value is greater than 0.8. (Women should have a waist to hip ration less than 0.8 and males should have le...

Direct Calorimetry - ️️measure's the body's heat production to estimate energy expenditure Indirect Calorimetry - ️️calculated energy expenditure from the ration of CO2 produced to O2 consumed. Oxygen Consumption (VO2 max) - ️️the rate of O2 and CO2 exchanged in the lungs = rate of use and released by the body tissues Two ways to measure Oxygen Consumption - ️️-Indirect Calorimetry Method -VO2 max VO2 max Best Method - ️️single best measurement of cardiorespira...

BIOD 121 Portage module 3 latest version graded A+ positive energy balance more calories consumed than expended negative energy balance fewer calories consumed than expended hyperplasia increase in number of cells (e.g., fat cells in childhood, pregnancy) hypertrophy increase in cell size (low growth and maintenance, such as throughout adulthood) basal metabolic rate the number of calories used by the body while in a fasting state accounts for approximately 60-70% of energy e...