19 Questions
Which of the following is NOT a variable that is part of the milieu intérieur?
Time spent foraging
Which of the following is a pro of regulation in physiological processes?
Cells experience constant conditions
Which of the following is a con of conformity in physiological processes?
Cells must have mechanisms to cope with variability
What is the definition of homeostasis?
The condition of a relatively stable internal physiological environment, usually involving extensive feedback mechanisms.
Which of the following is an example of a sensor in homeostasis?
Water temperature
What type of control mechanism is involved in homeostasis when the body is too hot?
On/off control
What type of control mechanism is involved in homeostasis when the body is too cold?
Proportional control
How is homeostasis achieved hormonally?
Insulin & glucagon from pancreas regulate mammalian blood sugar
How is homeostasis achieved neurally?
Vasoconstriction and vasodilation regulate heat loss in vertebrates
How is homeostasis achieved biochemically?
Osmolarity of body fluids is regulated by the kidneys
According to the text, what is the equation for direct proportionality (isometric scaling)?
$Y = aX^1$
According to the text, what is the equation for non-linear proportionality (allometric scaling)?
$Y = aX^b$
According to the text, what is the equation for calculating mammal basal metabolic rate (BMR)?
$BMR = 3.53M^{0.72}$
According to the text, what is the equation for calculating heart mass in relation to body mass?
$Heart\ mass = 0.0059M^{0.75}$
According to the text, what is the equation for calculating heart rate in relation to body mass?
$Heart\ rate = 241M^{-0.25}$
According to the text, what is the equation for scaling growth rate with mass for plants?
$Growth\ rate = M^{0.75}$
According to the text, what is the equation for scaling mammal basal metabolic rate (BMR) with body mass?
$BMR = M^{0.72}$
According to the text, what is the equation for scaling VO2max with body mass?
$VO2max = M^{0.86}$
According to the text, what is the equation for calculating the ratio of mammal basal metabolic rate (BMR) between placental mammals and marsupial mammals?
$\frac{BMR_{placental}}{BMR_{marsupial}} = 1.4$
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.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
