APHY 201 LATEST FINAL EXAM (2026) IVY TECH
12/17/2025
COMMUNITY COLLEGE
APHY 201 Latest Final Exam (2026) Ivy Tech Community
College question and answer A+ graded
How is autocrine regulation best described?
chemical regulators affect the same cells that produce them
What is the term for the developmental process that leads to specialized cell types?
Differentiation
Body water is "compartmentalized". Find the false statement below, if any, concerning body fluid
compartmentalization:
Blood plasma accounts for about 80% of the extracellular fluid.
What term is used to describe the steady-state value for any variable that the body attempts to
maintain?
set point
Which of the following situations best represents a homeostatic mechanism?
After eating a large batch of salty popcorn, levels of salt in the urine increase.
A man takes a week-long vacation to the Rocky Mountains. During the first few days, he experiences
altitude sickness, due to O2 deficiency (nausea, headache, breathlessness). After that he feels fine, due
to his body's production of more red blood cells to carry O2 to his cells. When he returns home, as the
, APHY 201 LATEST FINAL EXAM (2026) IVY TECH
12/17/2025
COMMUNITY COLLEGE
extra RBCs become worn out and are removed from his blood, his body returns to its normal number of
RBCs and does not replace the extra ones. This is an example of,
Acclimatization
Which of the following is an example of an acquired reflex?
Swerving while driving a car, to avoid hitting another car.
Which one of the following is the correct sequence for a regulatory reflex arc?
Stimulus, receptor, afferent pathway, integrating center, efferent pathway, effector
What is the general purpose of positive feedback mechanisms?
To bring about a rapid change in the body
Interleukins are immune substances secreted by certain types of lymphocytes. Once secreted, some of
them exert their effects on cells close to those that secreted them. These interleukins are examples of
______ agents or messengers.
Paracrine
What best describes the main determinant of the secondary structure of a protein?
Molecular interactions along a polypeptide chain that fold various regions into alpha helices or beta
sheets
A single genetic mutation will change a protein at what level of structure?
, APHY 201 LATEST FINAL EXAM (2026) IVY TECH
12/17/2025
COMMUNITY COLLEGE
A single genetic mutation could change all of these.
You're designing a new drug to treat allergies. You'd like for your therapy to be able to dissolve through
the lipid bilayers of cell membranes; therefore, ________ molecules will make excellent drug choices.
non-polar
Find the false statement below, if any, concerning proteins:
There is no false statement; all are true of proteins.
Molecules that have properties of both polar and nonpolar molecules are called
amphipathic
Carbohydrates are stored in animal cells in the form of
glycogen
Which is the correct description of nucleic acids?
They are polymers of subunits containing a phosphate group, a sugar, and a purine or pyrimidine
base.
Carbon-12 and carbon-14 are isotopes. How are they different from each other?
They have different numbers of neutrons.
12/17/2025
COMMUNITY COLLEGE
APHY 201 Latest Final Exam (2026) Ivy Tech Community
College question and answer A+ graded
How is autocrine regulation best described?
chemical regulators affect the same cells that produce them
What is the term for the developmental process that leads to specialized cell types?
Differentiation
Body water is "compartmentalized". Find the false statement below, if any, concerning body fluid
compartmentalization:
Blood plasma accounts for about 80% of the extracellular fluid.
What term is used to describe the steady-state value for any variable that the body attempts to
maintain?
set point
Which of the following situations best represents a homeostatic mechanism?
After eating a large batch of salty popcorn, levels of salt in the urine increase.
A man takes a week-long vacation to the Rocky Mountains. During the first few days, he experiences
altitude sickness, due to O2 deficiency (nausea, headache, breathlessness). After that he feels fine, due
to his body's production of more red blood cells to carry O2 to his cells. When he returns home, as the
, APHY 201 LATEST FINAL EXAM (2026) IVY TECH
12/17/2025
COMMUNITY COLLEGE
extra RBCs become worn out and are removed from his blood, his body returns to its normal number of
RBCs and does not replace the extra ones. This is an example of,
Acclimatization
Which of the following is an example of an acquired reflex?
Swerving while driving a car, to avoid hitting another car.
Which one of the following is the correct sequence for a regulatory reflex arc?
Stimulus, receptor, afferent pathway, integrating center, efferent pathway, effector
What is the general purpose of positive feedback mechanisms?
To bring about a rapid change in the body
Interleukins are immune substances secreted by certain types of lymphocytes. Once secreted, some of
them exert their effects on cells close to those that secreted them. These interleukins are examples of
______ agents or messengers.
Paracrine
What best describes the main determinant of the secondary structure of a protein?
Molecular interactions along a polypeptide chain that fold various regions into alpha helices or beta
sheets
A single genetic mutation will change a protein at what level of structure?
, APHY 201 LATEST FINAL EXAM (2026) IVY TECH
12/17/2025
COMMUNITY COLLEGE
A single genetic mutation could change all of these.
You're designing a new drug to treat allergies. You'd like for your therapy to be able to dissolve through
the lipid bilayers of cell membranes; therefore, ________ molecules will make excellent drug choices.
non-polar
Find the false statement below, if any, concerning proteins:
There is no false statement; all are true of proteins.
Molecules that have properties of both polar and nonpolar molecules are called
amphipathic
Carbohydrates are stored in animal cells in the form of
glycogen
Which is the correct description of nucleic acids?
They are polymers of subunits containing a phosphate group, a sugar, and a purine or pyrimidine
base.
Carbon-12 and carbon-14 are isotopes. How are they different from each other?
They have different numbers of neutrons.
