1|Page
Biol 320 Exam 1 Newest 2025/2026 Actual Exam
Complete Questions And Correct Answers(Verified
And Graded A+)
The ____ hormone is any of a class of hormones from the
anterior pituitary gland that affect the secretion of other
endocrine glands - ANSWER-tropic
Why might the hormones only affect the pancreas? -
ANSWER-due to the specific receptor on the pancreas
Do we have a hormone that targets many at the same
time? - ANSWER-yes, growth hormone during baby
development
,2|Page
The patient is getting a medicine that affects the secretion
of adrenaline, they take a medicine that dilutes the
adrenaline produced, how does our body compensate this
process to produce the same effect? - ANSWER-it
increases the number of receptors
The patient is getting medicine that affects the secretion of
adrenaline, they take a medicine that increases the
adrenaline produced, how does our body compensate this
process to produce the same affect? - ANSWER-it
decreases the number of receptors
What are the 3 factors that affect the hormone action on
target cells? - ANSWER-- hormone levels
- number of receptors on target hormone
,3|Page
- affinity of hormone for receptors
What is hormone specificity? - ANSWER-how many target
cells for a specific hormone
What are receptor dynamics? - ANSWER-how the cell
tolerate/adapt for hormonal increase or decrease
If the receptor population inside or at the surface of the
cell is ____ then it ___ with the environment and the
ligands and this is under ____ control of the cell. So, the
number of receptors can _____ if there is more hormone
(vice versa) - ANSWER-dynamic
Changes
, 4|Page
Constant
Increase
Upregulation and downregulation of receptors are
examples of receptor ____ - ANSWER-dynamics
____ regulation: cells up regulate receptors in response to
reduced hormone concentration in blood. Not enough
hormone - ANSWER-up
____ regulation: not common, hormone binds to receptor
to get another hormone bound then destroy receptors. Too
much hormone - ANSWER-down
Biol 320 Exam 1 Newest 2025/2026 Actual Exam
Complete Questions And Correct Answers(Verified
And Graded A+)
The ____ hormone is any of a class of hormones from the
anterior pituitary gland that affect the secretion of other
endocrine glands - ANSWER-tropic
Why might the hormones only affect the pancreas? -
ANSWER-due to the specific receptor on the pancreas
Do we have a hormone that targets many at the same
time? - ANSWER-yes, growth hormone during baby
development
,2|Page
The patient is getting a medicine that affects the secretion
of adrenaline, they take a medicine that dilutes the
adrenaline produced, how does our body compensate this
process to produce the same effect? - ANSWER-it
increases the number of receptors
The patient is getting medicine that affects the secretion of
adrenaline, they take a medicine that increases the
adrenaline produced, how does our body compensate this
process to produce the same affect? - ANSWER-it
decreases the number of receptors
What are the 3 factors that affect the hormone action on
target cells? - ANSWER-- hormone levels
- number of receptors on target hormone
,3|Page
- affinity of hormone for receptors
What is hormone specificity? - ANSWER-how many target
cells for a specific hormone
What are receptor dynamics? - ANSWER-how the cell
tolerate/adapt for hormonal increase or decrease
If the receptor population inside or at the surface of the
cell is ____ then it ___ with the environment and the
ligands and this is under ____ control of the cell. So, the
number of receptors can _____ if there is more hormone
(vice versa) - ANSWER-dynamic
Changes
, 4|Page
Constant
Increase
Upregulation and downregulation of receptors are
examples of receptor ____ - ANSWER-dynamics
____ regulation: cells up regulate receptors in response to
reduced hormone concentration in blood. Not enough
hormone - ANSWER-up
____ regulation: not common, hormone binds to receptor
to get another hormone bound then destroy receptors. Too
much hormone - ANSWER-down
