.gsu biology 1104 FINAL Questions With
Complete Solutions
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 answerD
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 answerE
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 answerD
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 answerD
. In a typical ovarian cycle of humans, on what day is an egg released?
A) 1
B) 7
C) 14
D) 21 - Correct answerC
True or False. Neural cells maintain a resting potential of positive, sixty millivolts.
A) True
B) False - Correct answerB
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 answerC
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 answerB
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 answerB
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 answerE
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 answerD
Which hormone causes uterine contractions during human childbirth?
A) oxytocin
B) thryoxine
C) ADH
D) cholecystokinin
E) GnRH - Correct answerA
Complete Solutions
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 answerD
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 answerE
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 answerD
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 answerD
. In a typical ovarian cycle of humans, on what day is an egg released?
A) 1
B) 7
C) 14
D) 21 - Correct answerC
True or False. Neural cells maintain a resting potential of positive, sixty millivolts.
A) True
B) False - Correct answerB
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 answerC
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 answerB
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 answerB
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 answerE
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 answerD
Which hormone causes uterine contractions during human childbirth?
A) oxytocin
B) thryoxine
C) ADH
D) cholecystokinin
E) GnRH - Correct answerA
