20 Questions
Which of the following is the equation for isometric scaling?
$Y = aX^1$
What does the equation $LogY = 1LogX + Loga$ represent?
Scaling with a constant term
What is the purpose of Log10 transformation in analyzing data?
To linearize non-linear data
Which of the following equations represents allometric scaling?
$Y = aX^b$
What does the equation $Y = aX^b$ represent in scaling?
Non-linear scaling
What is the relationship between mammal basal metabolic rate (BMR) and body mass (M)?
BMR scales to M^0.75
What is the relationship between heart mass and body mass in animals?
Heart mass scales to M^0.98
What is the purpose of residual analysis in scaling?
To determine if species are above or below an allometric line
What is the equation for heart rate in relation to body mass (M)?
Heart rate = 241M^-0.25
What is the purpose of scaling in understanding physiology?
To match organ size to demand
Which of the following is NOT a variable that is part of the internal environment of organisms?
Air temperature
Which of the following is a pro of regulation in physiological processes?
Cells experience constant conditions
According to Walter Cannon, homeostasis refers to
The coordinated physiological processes which maintain most of the constant states in the organism
Which of the following is NOT a component of a negative feedback loop in homeostasis?
Positive feedback
What is the purpose of increasing heat loss in response to being too hot?
To cool the body toward the setpoint
Which of the following is an example of hormonal regulation in homeostasis?
Insulin and glucagon regulation of blood sugar
Which of the following is NOT a way in which homeostasis is achieved?
Proportional control
What is the main difference between regulation and conformity in physiological processes?
Regulation requires mechanisms to cope with variability, while conformity does not
What is the zone of tolerance in regulation?
The range of conditions in which regulation is optimal
According to Hopkins & Hüner, homeostasis involves
The condition of a relatively stable internal physiological environment
Test your knowledge of physiological regulation and scaling in organismal physiology with this quiz. Learn about the internal environment of organisms, variables such as water, ions, glucose, pH, temperature, gases, and blood glucose in mammals. Explore the concepts of conformity and regulation in physiology.
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