BIOL 235
BIOL 235 - Physiology Lab Exam
Questions with Verified Solutions 2025
define anatomy -Correct Answers ✔-study of STRUCTURE and
RELATIONSHIPS between body parts
define physyiology -Correct Answers ✔-the science of HOW body parts come
together to FUNCTION and keep the body alive
difference between homeostasis and equilibrium -Correct Answers ✔-equilibrium
is the equal movement of molecules
homeostasis is maintained sometimes by unequal movement. it is what the body
does in order to compensate for changes made due to loss of homeostasis.
steps of simple control system -Correct Answers ✔-stimulus > sensor > control >
effector
ex: body temp exceeds 37 > sensors like nerve cells with endings in skin and brain
> temp regulatory center in brain > sweat glands throughout body
how do feedback systems maintain homeostasis -Correct Answers ✔-there is an
initial stimulus that will result in a response. this response will result in another
stimulus that will either inhibit or enhance the initial response
BIOL 235
, BIOL 235
3 membrane modifications we talked about -Correct Answers ✔-lipids: creates
compartments for endo and exocytosis
cholesterol: affects fluidity and permeability
proteins: affects how cells function based on environmental signals because they
are the transporters and receptors that allow for things to cross the membrane
types of gated protein channels -Correct Answers ✔-mechanical
voltage
ligand
types of transport protein -Correct Answers ✔-gated channels
carrier proteins
define receptor -Correct Answers ✔-a molecule that can "sense" an external
stimulus and sends that communication forward
where can receptors be located -Correct Answers ✔-cell membrane, cytoplasm, or
on nuclear membrane
how do receptors pass on communication -Correct Answers ✔-1. second
messenger systems with messenger inside the cell)
2. receptors can also be ion channels
BIOL 235
BIOL 235 - Physiology Lab Exam
Questions with Verified Solutions 2025
define anatomy -Correct Answers ✔-study of STRUCTURE and
RELATIONSHIPS between body parts
define physyiology -Correct Answers ✔-the science of HOW body parts come
together to FUNCTION and keep the body alive
difference between homeostasis and equilibrium -Correct Answers ✔-equilibrium
is the equal movement of molecules
homeostasis is maintained sometimes by unequal movement. it is what the body
does in order to compensate for changes made due to loss of homeostasis.
steps of simple control system -Correct Answers ✔-stimulus > sensor > control >
effector
ex: body temp exceeds 37 > sensors like nerve cells with endings in skin and brain
> temp regulatory center in brain > sweat glands throughout body
how do feedback systems maintain homeostasis -Correct Answers ✔-there is an
initial stimulus that will result in a response. this response will result in another
stimulus that will either inhibit or enhance the initial response
BIOL 235
, BIOL 235
3 membrane modifications we talked about -Correct Answers ✔-lipids: creates
compartments for endo and exocytosis
cholesterol: affects fluidity and permeability
proteins: affects how cells function based on environmental signals because they
are the transporters and receptors that allow for things to cross the membrane
types of gated protein channels -Correct Answers ✔-mechanical
voltage
ligand
types of transport protein -Correct Answers ✔-gated channels
carrier proteins
define receptor -Correct Answers ✔-a molecule that can "sense" an external
stimulus and sends that communication forward
where can receptors be located -Correct Answers ✔-cell membrane, cytoplasm, or
on nuclear membrane
how do receptors pass on communication -Correct Answers ✔-1. second
messenger systems with messenger inside the cell)
2. receptors can also be ion channels
BIOL 235
