Physiological Regulation and Scaling Quiz

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Questions and Answers

Which of the following is the equation for isometric scaling?

  • $Y = aX^b$
  • $Y = aX^b + C$
  • $Y = aX^1$ (correct)
  • $Y = aX^1 + C$

What does the equation $LogY = 1LogX + Loga$ represent?

  • Isometric scaling
  • Scaling with a constant term (correct)
  • Linear scaling
  • Non-linear scaling

What is the purpose of Log10 transformation in analyzing data?

  • To make data easier to understand
  • To predict unknowns
  • To linearize non-linear data (correct)
  • To summarize huge data sets

Which of the following equations represents allometric scaling?

<p>$Y = aX^b$ (A)</p> Signup and view all the answers

What does the equation $Y = aX^b$ represent in scaling?

<p>Non-linear scaling (B)</p> Signup and view all the answers

What is the relationship between mammal basal metabolic rate (BMR) and body mass (M)?

<p>BMR scales to M^0.75 (D)</p> Signup and view all the answers

What is the relationship between heart mass and body mass in animals?

<p>Heart mass scales to M^0.98 (C)</p> Signup and view all the answers

What is the purpose of residual analysis in scaling?

<p>To determine if species are above or below an allometric line (A)</p> Signup and view all the answers

What is the equation for heart rate in relation to body mass (M)?

<p>Heart rate = 241M^-0.25 (A)</p> Signup and view all the answers

What is the purpose of scaling in understanding physiology?

<p>To match organ size to demand (C)</p> Signup and view all the answers

Which of the following is NOT a variable that is part of the internal environment of organisms?

<p>Air temperature (B)</p> Signup and view all the answers

Which of the following is a pro of regulation in physiological processes?

<p>Cells experience constant conditions (B)</p> Signup and view all the answers

According to Walter Cannon, homeostasis refers to

<p>The coordinated physiological processes which maintain most of the constant states in the organism (A)</p> Signup and view all the answers

Which of the following is NOT a component of a negative feedback loop in homeostasis?

<p>Positive feedback (D)</p> Signup and view all the answers

What is the purpose of increasing heat loss in response to being too hot?

<p>To cool the body toward the setpoint (B)</p> Signup and view all the answers

Which of the following is an example of hormonal regulation in homeostasis?

<p>Insulin and glucagon regulation of blood sugar (C)</p> Signup and view all the answers

Which of the following is NOT a way in which homeostasis is achieved?

<p>Proportional control (D)</p> Signup and view all the answers

What is the main difference between regulation and conformity in physiological processes?

<p>Regulation requires mechanisms to cope with variability, while conformity does not (B)</p> Signup and view all the answers

What is the zone of tolerance in regulation?

<p>The range of conditions in which regulation is optimal (B)</p> Signup and view all the answers

According to Hopkins & Hüner, homeostasis involves

<p>The condition of a relatively stable internal physiological environment (B)</p> Signup and view all the answers

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