15 Questions
Which of the following is an example of positive feedback control system?
Fever homeostatic
Which equation represents isometric scaling?
$Y = aX^1$
What does the equation $Y = aX^b$ represent in scaling?
Proportionality changes with size
What does the equation $\log Y = 1 \log X + \log a$ represent in scaling?
Linearization of non-linear data
What does the process of log transformation do to non-linear data?
Makes it easier to understand and analyze
What is the scaling exponent for mammal basal metabolic rate (BMR)?
$M^{0.75}$
What is the scaling exponent for VO2max in mammals?
$M^{0.86}$
What is the scaling exponent for heart mass in animals?
$M^{0.98}$
Which of the following is a variable that can be part of the internal environment of organisms?
Water osmolarity
Which of the following is a pro of regulation in physiological processes?
Cells experience constant conditions
What is the definition of homeostasis?
The condition of a relatively stable internal physiological environment
What is the role of a sensor in homeostasis?
To compare the value to the set point
What is the main function of a negative feedback loop in homeostasis?
To maintain the value of the controlled variable at the set point
Which of the following is an example of hormonal regulation in homeostasis?
Insulin and glucagon regulation of blood sugar
Which of the following is an example of neuronal regulation in homeostasis?
Vasoconstriction and vasodilation to regulate heat loss
Test your knowledge of physiological regulation and scaling in organismal physiology with this quiz. Explore the concept of the internal environment of organisms, including variables such as water osmolarity, ions, glucose, pH, temperature, gases, and blood glucose in mammals. Learn about the difference between conformity and regulation in physiology.
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