Bio 151 Final Exam Questions and Verified Answers,
100% Score Guarantee Pass (Latest 2025)
(T/F) As an organism gets larger (grows), its volume increases and its
surface area decreases. - Correct Answers ✅False
When comparing two organisms of different size (for example, a mouse
and an elephant), the larger animal (elephant) has a(n) __________
surface area to volume ratio than the smaller animal (mouse). - Correct
Answers ✅Smaller
The main role of the Na/K pump is to: - Correct Answers ✅Export three
sodium ions, import two potassium ions, and help maintain cell
membrane resting potential.
Which of the following correctly pairs neuron structure with function? -
Correct Answers ✅Voltage-gated sodium channels allow the influx of
sodium into the cell.
Mojave toxin, the principle toxic component of the venom of the Mojave
rattlesnake, is a protein complex that specifically binds to voltage gated
Ca++ channels, but not to Na+ or K+ channels. Mojave toxin permanently
prevents depolarization-mediated Ca++ entry into nerve terminals. It's
lethal effects result from: - Correct Answers ✅An inability to transmit
neurotransmitters from one neuron to the next.
Glial cells, such as astrocytes, provide which of the following benefits to
neurons? - Correct Answers ✅A) Repair damage with scar tissue
B) Provide energy (e.g. lactose) when needed
, Bio 151 Final Exam Questions and Verified Answers,
100% Score Guarantee Pass (Latest 2025)
C) Provide physical structure/support
D) Clearance of neurotransmitters from the synaptic cleft
**ALL OF THESE OPTIONS ARE CORRECT**
During an excitatory postsynaptic potential (EPSP), the postsynaptic
membrane would most likely become permeable to: - Correct Answers
✅Na+
During an inhibitory postsynaptic potential (IPSP), the postsynaptic
membrane would most likely become permeable to: - Correct Answers
✅K+
(T/F) The autonomic branch of your nervous system controls elements of
your person that you cannot control and is further divided into the
sympathetic and parasympathetic branches which perform opposite
functions. - Correct Answers ✅True
Afferent neurons send signals toward the central nervous system, while
efferent neurons send signals away from the central nervous system.
During our first lecture on the nervous system, we discussed three
general types of neurons, listed below. Which of these can function as
both afferent and efferent neurons (but not at the same time)? - Correct
Answers ✅Interneurons
100% Score Guarantee Pass (Latest 2025)
(T/F) As an organism gets larger (grows), its volume increases and its
surface area decreases. - Correct Answers ✅False
When comparing two organisms of different size (for example, a mouse
and an elephant), the larger animal (elephant) has a(n) __________
surface area to volume ratio than the smaller animal (mouse). - Correct
Answers ✅Smaller
The main role of the Na/K pump is to: - Correct Answers ✅Export three
sodium ions, import two potassium ions, and help maintain cell
membrane resting potential.
Which of the following correctly pairs neuron structure with function? -
Correct Answers ✅Voltage-gated sodium channels allow the influx of
sodium into the cell.
Mojave toxin, the principle toxic component of the venom of the Mojave
rattlesnake, is a protein complex that specifically binds to voltage gated
Ca++ channels, but not to Na+ or K+ channels. Mojave toxin permanently
prevents depolarization-mediated Ca++ entry into nerve terminals. It's
lethal effects result from: - Correct Answers ✅An inability to transmit
neurotransmitters from one neuron to the next.
Glial cells, such as astrocytes, provide which of the following benefits to
neurons? - Correct Answers ✅A) Repair damage with scar tissue
B) Provide energy (e.g. lactose) when needed
, Bio 151 Final Exam Questions and Verified Answers,
100% Score Guarantee Pass (Latest 2025)
C) Provide physical structure/support
D) Clearance of neurotransmitters from the synaptic cleft
**ALL OF THESE OPTIONS ARE CORRECT**
During an excitatory postsynaptic potential (EPSP), the postsynaptic
membrane would most likely become permeable to: - Correct Answers
✅Na+
During an inhibitory postsynaptic potential (IPSP), the postsynaptic
membrane would most likely become permeable to: - Correct Answers
✅K+
(T/F) The autonomic branch of your nervous system controls elements of
your person that you cannot control and is further divided into the
sympathetic and parasympathetic branches which perform opposite
functions. - Correct Answers ✅True
Afferent neurons send signals toward the central nervous system, while
efferent neurons send signals away from the central nervous system.
During our first lecture on the nervous system, we discussed three
general types of neurons, listed below. Which of these can function as
both afferent and efferent neurons (but not at the same time)? - Correct
Answers ✅Interneurons
