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HKIN 191 Midterm 1 Exam | Questions And Answers Latest {} A+ Graded | 100% Verified
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HKIN 191 Midterm 1 Exam | Questions And Answers Latest {} A+ Graded | 100% Verified
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HKIN 191 Midterm 1 Exam | Questions And Answers Latest {2024- 2025} A+ Graded |100% Verified
What is VO2? - oxygen consumption
What is a MET? - Metabolic equivalent
1 MET = 3.5 ml/kg/min
What is absolute VO2 max? - maximum amount of oxygen consumed - L/min
What is relative VO2 max? - maximum amount of oxygen consumed relative to body mass -
mlO2/kg/min
How do you calculate relative VO2 from absolute VO2? - divide absolute VO2 by kg
How do you calculate absolute VO2 from relative VO2? - multiply relative VO2 by kg
How do you calculate relative VO2 from METS? - multiply METS by 3.5
How do you calculate METS from relative VO2? - divide relative VO2 by 3.5
How do you calculate total VO2(L) consumed? - multiply VO2 (L/min) by time (min)
How do you calculate kcal burned during exercise? - multiply total VO2 consumed by 5
What is homeostasis? - maintenance of a constant internal environment
normal resting conditions
What is a steady state? - the balance between demands placed on the body and the physiological
response to those demands
, What is the goal of the control systems of the body? - to regulate some physiological variable at or near
a constant value
What is a biological control system? - series of interconnected components that serve to maintain a
physical or chemical parameter at or near a constant
What does a receptor do? - capable of detecting changes
What does an integrating centre do? - assesses input and initiates a response
What does an effector do? - corrects changes to internal environment
What system do most biological systems operate via? - negative feedback system
What is a negative feedback system? - the response of the control system is opposite to the stimulus
the response reverses the initial disturbance in homestasis
What is metabolism? - sum of all chemical reactions that occur in the body
What is an anabolic reaction? - synthesis of molecules
What is a catabolic reaction? - breakdown of molecules
What is an endergonic reaction? - reaction that requires energy to be added
What is an exergonic reaction? - reaction that releases energy
What are coupled reactions? - liberation of energy in an exergonic reaction drives an endergonic
reaction
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