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Physiology Exam 1 (EEOB 2520 OSU Spring
18) Exam Questions With Verified Answers
Equation 1? - Answers✔ATP <-> ADP + Pi + Energy (Reversible)
What is equation 1 used for? - Answers✔Our Currency to pay for activities (energy; like
spending dollar bills)
Equation 2? - Answers✔Glucose+ o2 + ADP + Pi -> ATP + CO2 + H2o + Heat
What is equation 2 used for? - Answers✔How we make currency (energy; Like earning money)
Equation 3? - Answers✔Co2+ H20 <-> HCO3- + H+ (Reversible)
what is equation 3 used for? - Answers✔Transport a gas in water
Equation 4? - Answers✔PV=nRT
What is equation 4 used for? - Answers✔Ideal gas law
Which two equations are reversible? - Answers✔#1 and #3
Homeostasis - Answers✔Relatively stable maintenance of a body parameter
What can homeostasis also be called? - Answers✔Dynamic constancy
Set point - Answers✔Goal range
Steady State - Answers✔Maintaining at Set point
Homeostatic control system - Answers✔Interconnected components that work together to keep
at set point (maintain steady state)
does being at steady state require energy? - Answers✔Yes
Is steady state considered equilibrium? - Answers✔No (very few things in equilibrium in phys)
Disturbances from steady state are called? - Answers✔Reactive (Reactive -> Response ->
Feedback)
Negative feedback - Answers✔going towards steady state (Opposite of disturbance)
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Positive Feedback - Answers✔Continues with disturbance (Goes away from steady state)
Feedfoward - Answers✔Technique used to avoid being pushed out of steady state (Proactive ->
Preparation= Feedfoward)
Does Feedfoward use less energy than negetive feedback? - Answers✔Yes
Reflex Template Steps - Answers✔Stimulus
X altered
Sensor/Receptor
Afferent pathway
Integrating center (Integrator)
Efferent pathway
Effectors (Respond to stimulus)
Compensatory response (change in phys)
X restored
Afferent pathway - Answers✔going towards integrator
Efferent pathway keys? - Answers✔Detection (change has to be significant)
What does the integrator decide to do? - Answers✔Whether the stimulus is big enough to send to
efferent pathway (will send back if not)
Reflex Arc negative feedback result? - Answers✔X restored
Reflex arc positive feedback? - Answers✔X further altered
Biorythms - Answers✔pattern to variation of controlled variable (parameter)