BIO 181 (Capco ASU) Exam 3 (Final Exam) 2026-2027
QUESTIONS AND ANSWERS 100 % PASS SOLUTION A+ GRADE
Your mom came back from her medical appointment and said that the M.D. told her she had low bone
density. What medical problem could this cause and what hormones/endocrine glands in the body are
involved? - answer>>This could cause Osteoporosis and the parathyroid is involved in this.
T/F Vitamin D causes the parathyroid to inhibit new PTH synthesis. - answer>>True
T/F Insulin is a ligand. - answer>>True
What could the stress of taking an exam do to your glucose levels in various parts of the body? -
answer>>Stress can cause your sympathetic nervous system to turn on "the fight or flight response"
activating stored glycogen in your cells, thusly raising your blood sugar levels.
T/F The Parasympathetic Nervous System is triggered to act by exposure to epinephrine. -
answer>>False
Explain how insulin and glucagon regulate the balance (i.e, homeostasis) between glycogen and glucose
when epinephrine (i.e., adrenalin) is not involved. - answer>>Glucagon and Insulin work in a negative
feedback loop together to keep your blood sugar in a normal range (in a healthy person). Insulin works
when your pancreas detects when you have high levels of glucose in your blood stream. Insulin binds to
the cells, and some use glucose as energy, and others, like your liver store it as glycogen. Glucagon is the
opposite of insulin. After you haven't eaten in a while, your blood glucose levels lower and glucagon
signals the cells that have the stored glycogen (liver and muscle cells) to then turn it back into glucose
for the other cells to use for energy.
T/F Vitamin D is really a hormone. - answer>>True
Where do fats in the body play a role in balance between glucose and glycogen? - answer>>Fats have
stored glycogen in them that can be converted back to glucose for other cells to use, when our blood
glucose levels are low.
, T/F Surfactants is one of the later components made in the fetus (prior to birth). - answer>>True
What does carbonic anhydrase do? - answer>>carbonic anhydrase, aids in the conversion of carbon
dioxide to carbonic acid and bicarbonate ions. When red blood cells reach the lungs, the same enzyme
helps to convert the bicarbonate ions back to carbon dioxide, which we breathe out.
T/F Red blood cells carry CO2 back to the lungs. - answer>>False
T/F The slow flow of blood in the capillaries facilitates the production of bicarbonates in the blood. -
answer>>True
T/F Veins and venueles have valves in them, but arteries and arterioles do not. - answer>>True
There are two factors that cause the release of oxygen from hemoglobin- list them. - answer>>Drop in
pO2 (Partial pressure)
Drop in PH (Bohr effect)
T/F The two circuits in the heart and the cardiovascular system have the same blood pressure. -
answer>>False
Once inside the circulatory system is the molecule that binds oxygen. -
answer>>Hemoglobin
T/F The lungs have increased surface area to increase the movement of oxygen into the circulatory
system. - answer>>True
When arterial blood pressure falls the body compensates to raise the blood pressure. Explain this
process. - answer>>1) kidney releases renin
QUESTIONS AND ANSWERS 100 % PASS SOLUTION A+ GRADE
Your mom came back from her medical appointment and said that the M.D. told her she had low bone
density. What medical problem could this cause and what hormones/endocrine glands in the body are
involved? - answer>>This could cause Osteoporosis and the parathyroid is involved in this.
T/F Vitamin D causes the parathyroid to inhibit new PTH synthesis. - answer>>True
T/F Insulin is a ligand. - answer>>True
What could the stress of taking an exam do to your glucose levels in various parts of the body? -
answer>>Stress can cause your sympathetic nervous system to turn on "the fight or flight response"
activating stored glycogen in your cells, thusly raising your blood sugar levels.
T/F The Parasympathetic Nervous System is triggered to act by exposure to epinephrine. -
answer>>False
Explain how insulin and glucagon regulate the balance (i.e, homeostasis) between glycogen and glucose
when epinephrine (i.e., adrenalin) is not involved. - answer>>Glucagon and Insulin work in a negative
feedback loop together to keep your blood sugar in a normal range (in a healthy person). Insulin works
when your pancreas detects when you have high levels of glucose in your blood stream. Insulin binds to
the cells, and some use glucose as energy, and others, like your liver store it as glycogen. Glucagon is the
opposite of insulin. After you haven't eaten in a while, your blood glucose levels lower and glucagon
signals the cells that have the stored glycogen (liver and muscle cells) to then turn it back into glucose
for the other cells to use for energy.
T/F Vitamin D is really a hormone. - answer>>True
Where do fats in the body play a role in balance between glucose and glycogen? - answer>>Fats have
stored glycogen in them that can be converted back to glucose for other cells to use, when our blood
glucose levels are low.
, T/F Surfactants is one of the later components made in the fetus (prior to birth). - answer>>True
What does carbonic anhydrase do? - answer>>carbonic anhydrase, aids in the conversion of carbon
dioxide to carbonic acid and bicarbonate ions. When red blood cells reach the lungs, the same enzyme
helps to convert the bicarbonate ions back to carbon dioxide, which we breathe out.
T/F Red blood cells carry CO2 back to the lungs. - answer>>False
T/F The slow flow of blood in the capillaries facilitates the production of bicarbonates in the blood. -
answer>>True
T/F Veins and venueles have valves in them, but arteries and arterioles do not. - answer>>True
There are two factors that cause the release of oxygen from hemoglobin- list them. - answer>>Drop in
pO2 (Partial pressure)
Drop in PH (Bohr effect)
T/F The two circuits in the heart and the cardiovascular system have the same blood pressure. -
answer>>False
Once inside the circulatory system is the molecule that binds oxygen. -
answer>>Hemoglobin
T/F The lungs have increased surface area to increase the movement of oxygen into the circulatory
system. - answer>>True
When arterial blood pressure falls the body compensates to raise the blood pressure. Explain this
process. - answer>>1) kidney releases renin
