CSCC BIO 2300 UNIT 1 PRACTICAL
PRACTICE SOLUTION UPDATED
QUESTIONS AND CORRECT ANSWERS
MANUAL
●● When the tympanic membrane vibrates with the same frequency as
the incoming sound waves it is known as:
A. amplitude.
B. resonance.
C. cycles.
D. hertz.
E. pitch.
Answer: B. resonance
*the right combination of frequencies and amplitudes including the
tympanic membrane will begin to vibrate at the same frequency as the
sound = RESONANCE
●● The taste sensation that is triggered by the amino acid glutamate is
known as:
A. peppery.
,B. salty.
C. sweet.
D. sour.
E. umami
Answer: E. umami
●● A person with damage to this part of the brain (indicated by the
arrow) will have normal acoustic reflexes but will have difficulty
performing which of the following functions?
A. interpreting sounds and recognizing a pattern in them
B. directing input from the thalamus to the brainstem
C. sending auditory information to the midbrain
D. directing a variety of motor reflexes to sound
Answer: A. interpreting sounds and recognizing a pattern in them
●● Which of these is NOT a type of photoreceptor?
A. red cone
B. blue cone
C. green cone
D. yellow cone
,Answer: D. yellow cone
●● The following steps occur in rods when they are excited by photons
of light. What is the proper sequence for these steps?
1. Membrane sodium channels close.
2. Increased phosphodiesterase breaks down cGMP.
3. Retinal changes from the 11-cis form to the 11-trans form.
4. The membrane hyperpolarizes and the rate of neurotransmitter release
declines.
5. Opsin activates transducin.
6. Opsin activation occurs.
A. 6, 3, 5, 2, 1, 4
B. 3, 6, 5, 2, 1, 4
C. 1, 6, 5, 2, 4, 3
D. 1, 3, 4, 5, 6, 2
E. 3, 6, 5, 1, 2, 4
Answer: B. 3, 6, 5, 2, 1, 4
In order:
, 1. retinal changes from the 11-cis form to 11-trans form
2. Opsin activation occurs
3. Opsin activates transducin
4. increased phosphodiesterase breaks down cGMP
5. Membrane sodium channels close
6. The membrane hyperpolarizes and the rate of neurotransmitter release
declines
●● Which of the following is not one of the six primary taste sensations?
A. umami
B. salty
C. sour
D. peppery
E. sweet
Answer: D. peppery
●● The ________ convey(s) information about head position with
respect to gravity.
A. cochlea
B. utricle
C. ampulla
D. saccule
PRACTICE SOLUTION UPDATED
QUESTIONS AND CORRECT ANSWERS
MANUAL
●● When the tympanic membrane vibrates with the same frequency as
the incoming sound waves it is known as:
A. amplitude.
B. resonance.
C. cycles.
D. hertz.
E. pitch.
Answer: B. resonance
*the right combination of frequencies and amplitudes including the
tympanic membrane will begin to vibrate at the same frequency as the
sound = RESONANCE
●● The taste sensation that is triggered by the amino acid glutamate is
known as:
A. peppery.
,B. salty.
C. sweet.
D. sour.
E. umami
Answer: E. umami
●● A person with damage to this part of the brain (indicated by the
arrow) will have normal acoustic reflexes but will have difficulty
performing which of the following functions?
A. interpreting sounds and recognizing a pattern in them
B. directing input from the thalamus to the brainstem
C. sending auditory information to the midbrain
D. directing a variety of motor reflexes to sound
Answer: A. interpreting sounds and recognizing a pattern in them
●● Which of these is NOT a type of photoreceptor?
A. red cone
B. blue cone
C. green cone
D. yellow cone
,Answer: D. yellow cone
●● The following steps occur in rods when they are excited by photons
of light. What is the proper sequence for these steps?
1. Membrane sodium channels close.
2. Increased phosphodiesterase breaks down cGMP.
3. Retinal changes from the 11-cis form to the 11-trans form.
4. The membrane hyperpolarizes and the rate of neurotransmitter release
declines.
5. Opsin activates transducin.
6. Opsin activation occurs.
A. 6, 3, 5, 2, 1, 4
B. 3, 6, 5, 2, 1, 4
C. 1, 6, 5, 2, 4, 3
D. 1, 3, 4, 5, 6, 2
E. 3, 6, 5, 1, 2, 4
Answer: B. 3, 6, 5, 2, 1, 4
In order:
, 1. retinal changes from the 11-cis form to 11-trans form
2. Opsin activation occurs
3. Opsin activates transducin
4. increased phosphodiesterase breaks down cGMP
5. Membrane sodium channels close
6. The membrane hyperpolarizes and the rate of neurotransmitter release
declines
●● Which of the following is not one of the six primary taste sensations?
A. umami
B. salty
C. sour
D. peppery
E. sweet
Answer: D. peppery
●● The ________ convey(s) information about head position with
respect to gravity.
A. cochlea
B. utricle
C. ampulla
D. saccule
