gsu biology 1104 FINAL exam questions 2025/2026
update
. Communication between neurons at synapses relies on
A) release of neurotransmitters from a pre-synaptic neuron
B) binding of neurotransmitters to receptors on dendrites
C) diffusion
D) All of the above
E) only A and B - correct answer D
Which one of the following hormones is released by the posterior pituitary?
A) TSH
B) gonadotropin releasing hormone
C) growth hormone
D) adrenaline
E) none of the above - correct answer E
The region of the brain that controls involuntary actions such as breathing and
"muscle memory" is the:
A) thalamus B) cerebrum. C) midbrain D) hindbrain. - correct answer D
Which pair of hormones is responsible for keeping blood calcium levels within
normal ranges in some animals?
A) thyroxine and thymosin
B) aldosterone and insulin
C) ADH and growth hormone
D) calcitonin and parathyroid hormone
E) insulin and glucagon - correct answer D
. In a typical ovarian cycle of humans, on what day is an egg released?
A) 1
B) 7
C) 14
D) 21 - correct answer C
True or False. Neural cells maintain a resting potential of positive, sixty millivolts.
A) True
B) False - correct answer B
Which one of the following is a chemoreceptor?
A) pressure receptors in the skin.
B) hair cells in the ear
C) olfactory receptors in the nose
D) rods and cones in the eye
E) all of the above - correct answer C
, gsu biology 1104 FINAL exam questions 2025/2026
update
Brain tumors result from uncontrolled cell division. Yet in adult humans, most
neurons in the brain do not divide at all. Which of the following explains this?
A) Brain tumors usually occur due to unstoppable division of bone cells.
B) Brain tumors are usually formed from glial cells, the supporting cells of the
brain, which divide regularly.
C) When the brain is exposed to certain chemicals, uncontrolled cell division is
triggered in neurons.
D) Brain tumors are usually the result of unstoppable cell division among the
muscle cells of the neck and face that grow into the brain cavity. - correct answer
B
Ugh. Someone failed to flush the toilet again in Langdale Hall. The urine in the
toilet is dark yellow. What could you conclude about the person who left their
urine for you to flush?
A) Their ADH levels are below average.
B) Their ADH levels are relatively high.
C) Their hypothalamus is secreting high levels of ADH-RH.
D) both B and C - correct answer B
With long term stress, the body produces the steroid hormone _______________
from the adrenal glands. This reduces immune responses, and people who are
stressed for long periods of time (e.g. students at the end of the semester) thus
tend to get sick more often.
A) IGF-1
B) adrenaline
C) thymoxin
D) insulin
E) cortisol - correct answer E
Which of these hormones is produced by the small intestine and causes the
pancreas to release a substance to neutralize stomach acid?
A) human chorionic gondatropin
B) thryoxine
C) leupeptin
D) secretin
E) atrial natriuretic peptide - correct answer D
Which hormone causes uterine contractions during human childbirth?
A) oxytocin
B) thryoxine
update
. Communication between neurons at synapses relies on
A) release of neurotransmitters from a pre-synaptic neuron
B) binding of neurotransmitters to receptors on dendrites
C) diffusion
D) All of the above
E) only A and B - correct answer D
Which one of the following hormones is released by the posterior pituitary?
A) TSH
B) gonadotropin releasing hormone
C) growth hormone
D) adrenaline
E) none of the above - correct answer E
The region of the brain that controls involuntary actions such as breathing and
"muscle memory" is the:
A) thalamus B) cerebrum. C) midbrain D) hindbrain. - correct answer D
Which pair of hormones is responsible for keeping blood calcium levels within
normal ranges in some animals?
A) thyroxine and thymosin
B) aldosterone and insulin
C) ADH and growth hormone
D) calcitonin and parathyroid hormone
E) insulin and glucagon - correct answer D
. In a typical ovarian cycle of humans, on what day is an egg released?
A) 1
B) 7
C) 14
D) 21 - correct answer C
True or False. Neural cells maintain a resting potential of positive, sixty millivolts.
A) True
B) False - correct answer B
Which one of the following is a chemoreceptor?
A) pressure receptors in the skin.
B) hair cells in the ear
C) olfactory receptors in the nose
D) rods and cones in the eye
E) all of the above - correct answer C
, gsu biology 1104 FINAL exam questions 2025/2026
update
Brain tumors result from uncontrolled cell division. Yet in adult humans, most
neurons in the brain do not divide at all. Which of the following explains this?
A) Brain tumors usually occur due to unstoppable division of bone cells.
B) Brain tumors are usually formed from glial cells, the supporting cells of the
brain, which divide regularly.
C) When the brain is exposed to certain chemicals, uncontrolled cell division is
triggered in neurons.
D) Brain tumors are usually the result of unstoppable cell division among the
muscle cells of the neck and face that grow into the brain cavity. - correct answer
B
Ugh. Someone failed to flush the toilet again in Langdale Hall. The urine in the
toilet is dark yellow. What could you conclude about the person who left their
urine for you to flush?
A) Their ADH levels are below average.
B) Their ADH levels are relatively high.
C) Their hypothalamus is secreting high levels of ADH-RH.
D) both B and C - correct answer B
With long term stress, the body produces the steroid hormone _______________
from the adrenal glands. This reduces immune responses, and people who are
stressed for long periods of time (e.g. students at the end of the semester) thus
tend to get sick more often.
A) IGF-1
B) adrenaline
C) thymoxin
D) insulin
E) cortisol - correct answer E
Which of these hormones is produced by the small intestine and causes the
pancreas to release a substance to neutralize stomach acid?
A) human chorionic gondatropin
B) thryoxine
C) leupeptin
D) secretin
E) atrial natriuretic peptide - correct answer D
Which hormone causes uterine contractions during human childbirth?
A) oxytocin
B) thryoxine
