Page 1 of 25
Physiology Exam 1 (EEOB 2520), Ohio State University
(OSU), 2026–2027 – Questions with 100% Approved
Answers and Comprehensive Exam Study Set
Introduction
This document contains a comprehensive collection of
Physiology Exam 1 practice questions and answers for EEOB
2520 at Ohio State University. It covers key physiology
concepts including homeostasis, cellular communication,
feedback mechanisms, ATP and energy metabolism, nervous
system function, endocrine signaling, tissue types, and major
body systems.
The study set also includes detailed review questions on
cardiovascular, respiratory, digestive, immune, renal,
reproductive, and nervous system physiology. It is designed as
an exam preparation resource with question-and-answer
formats aligned to introductory physiology coursework.
Exam Questions and Answers
Tunneling Nanotubes --- correct precise answer ---Wider
channels (like gap junctions, but since they're bigger, they can
let proteins or larger molecules through)
Juxtacrines --- correct precise answer ---Transient protein
sends signal connection between membranes (THEY ARE
TOUCHING)
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Types of indirect intercellular communication (Cell A to Cell B)
--- correct precise answer ---Paracrines
Neurotransmitter
Endocrines
Where do paracrines come from? --- correct precise answer --
-Almost all cells
Where do paracrines go to? --- correct precise answer ---
Nearby Cells
Where do paracrines travel? --- correct precise answer ---
Fluid between cells (interstitial fluid)
Special case for paracrines? --- correct precise answer ---
Autocrines (Cell A and B are same cell)
Where do neurotransmitters come from? --- correct precise
answer ---Neuron
Where do neurotransmitters go to? --- correct precise answer
---nearby cells (synapse connection)
Where do neurotransmitters travel? --- correct precise
answer ---Fluid between cells (Interstitial Fluid)
, Page 3 of 25
How can paracrines and neurotransmitters be grouped ---
correct precise answer ---Location being sent to (Nearby cells)
Where they travel (Fluid between cells)
Equation 1? --- correct precise answer ---ATP <-> ADP + Pi +
Energy (Reversible)
What is equation 1 used for? --- correct precise answer ---Our
Currency to pay for activities (energy; like spending dollar
bills)
Equation 2? --- correct precise answer ---Glucose+ o2 + ADP +
Pi -> ATP + CO2 + H2o + Heat
What is equation 2 used for? --- correct precise answer ---
How we make currency (energy; Like earning money)
Equation 3? --- correct precise answer ---Co2+ H20 <->
HCO3- + H+ (Reversible)
what is equation 3 used for? --- correct precise answer ---
Transport a gas in water
Equation 4? --- correct precise answer ---PV=nRT
What is equation 4 used for? --- correct precise answer ---
Ideal gas law
Physiology Exam 1 (EEOB 2520), Ohio State University
(OSU), 2026–2027 – Questions with 100% Approved
Answers and Comprehensive Exam Study Set
Introduction
This document contains a comprehensive collection of
Physiology Exam 1 practice questions and answers for EEOB
2520 at Ohio State University. It covers key physiology
concepts including homeostasis, cellular communication,
feedback mechanisms, ATP and energy metabolism, nervous
system function, endocrine signaling, tissue types, and major
body systems.
The study set also includes detailed review questions on
cardiovascular, respiratory, digestive, immune, renal,
reproductive, and nervous system physiology. It is designed as
an exam preparation resource with question-and-answer
formats aligned to introductory physiology coursework.
Exam Questions and Answers
Tunneling Nanotubes --- correct precise answer ---Wider
channels (like gap junctions, but since they're bigger, they can
let proteins or larger molecules through)
Juxtacrines --- correct precise answer ---Transient protein
sends signal connection between membranes (THEY ARE
TOUCHING)
,Page 2 of 25
Types of indirect intercellular communication (Cell A to Cell B)
--- correct precise answer ---Paracrines
Neurotransmitter
Endocrines
Where do paracrines come from? --- correct precise answer --
-Almost all cells
Where do paracrines go to? --- correct precise answer ---
Nearby Cells
Where do paracrines travel? --- correct precise answer ---
Fluid between cells (interstitial fluid)
Special case for paracrines? --- correct precise answer ---
Autocrines (Cell A and B are same cell)
Where do neurotransmitters come from? --- correct precise
answer ---Neuron
Where do neurotransmitters go to? --- correct precise answer
---nearby cells (synapse connection)
Where do neurotransmitters travel? --- correct precise
answer ---Fluid between cells (Interstitial Fluid)
, Page 3 of 25
How can paracrines and neurotransmitters be grouped ---
correct precise answer ---Location being sent to (Nearby cells)
Where they travel (Fluid between cells)
Equation 1? --- correct precise answer ---ATP <-> ADP + Pi +
Energy (Reversible)
What is equation 1 used for? --- correct precise answer ---Our
Currency to pay for activities (energy; like spending dollar
bills)
Equation 2? --- correct precise answer ---Glucose+ o2 + ADP +
Pi -> ATP + CO2 + H2o + Heat
What is equation 2 used for? --- correct precise answer ---
How we make currency (energy; Like earning money)
Equation 3? --- correct precise answer ---Co2+ H20 <->
HCO3- + H+ (Reversible)
what is equation 3 used for? --- correct precise answer ---
Transport a gas in water
Equation 4? --- correct precise answer ---PV=nRT
What is equation 4 used for? --- correct precise answer ---
Ideal gas law
