both ethical and legal considerations when making decisions.### 2. **Ethical Issues in
Healthcare**Healthcare is one of the sectors where ethical and legal issues are particularly pronounced.
Medical professionals regularly face situations that require them to make complex decisions that not only
have life-altering consequences for patients but also raise profound moral questions. These issues
include:#### 2.1 **Patient Autonomy and Informed Consent**One of the fundamental ethical principles
in healthcare is respect for patient autonomy—the right of patients to make decisions about their own
bodies and medical treatments. This principle is enshrined in the legal concept of informed consent.
Informed consent requires healthcare providers to
Text Bank For
Questions and Answers; Synaptic Transmission
Multiple Choice
1. Gap junctions may exhibit all of the following features except
a. the ability to pass small metabolites, including some second messengers.
b. the ability to pass electrical current bidirectionally.
c. the ability to pass electrical current unidirectionally.
d. the ability to amplify small incoming electrical signals into large regenerative potentials.
e. the ability to synchronize the activity of populations of nerve cells.
Answer: d
Textbook Reference: Signaling Transmission at Electrical Synapses
2. The capability of a nerve terminal to rapidly and dramatically produce very large changes in calcium
levels is most dependent on the
a. presence of calcium-selective ion channels.
b. enormous gradient of calcium across the membrane.
c. fact that calcium is a positively charged ion.
d. fact that calcium is a divalent cation.
e. All of the above are essential for producing large, rapid concentration changes.
Answer: b
Textbook Reference: Signaling Transmission at Chemical Synapses
3. Listed below are the individual events that make up chemical synaptic transmission.
, 1. Diffusion of transmitter across the synaptic cleft
2. Depolarization of the presynaptic terminal
3. Vesicle fusion with plasma membrane
4. Opening of voltage-gated ion channels
5. Activation of presynaptic, calcium-sensitive proteins
Which sequence represents the correct ordering of these events?
a. 1; 2; 3; 4; 5
b. 2; 4; 5; 3; 1
c. 2; 5; 4; 3; 1
d. 5; 4; 2; 3; 1
e. 1; 2; 4; 5; 3
Answer: b
Textbook Reference: Signaling Transmission at Chemical Synapses
both ethical and legal considerations when making decisions.### 2. **Ethical Issues in
Healthcare**Healthcare is one of the sectors where ethical and legal issues are particularly pronounced.
Medical professionals regularly face situations that require them to make complex decisions that not only
have life-altering consequences for patients but also raise profound moral questions. These issues
include:#### 2.1 **Patient Autonomy and Informed Consent**One of the fundamental ethical principles in
healthcare is respect for patient autonomy—the right of patients to make decisions about their own bodies
and medical treatments. This principle is enshrined in the legal concept of informed consent. Informed
consent requires healthcare providers to
4. Which characteristic is an accepted criterion for classifying a molecule as a
neurotransmitter?
a. It must be present in the presynaptic terminal.
b. It must be released in response to presynaptic electrical activity.
c. It must exert an effect on the postsynaptic cell.
d. All of the above
e. None of the above
Answer: d
Textbook Reference: Properties of Neurotransmitters
5. A scientist wishes to develop a new drug that prevents synaptic communication via neuropeptides
but not small molecule neurotransmitters. Which mechanism would be a good target for his drug?
Healthcare**Healthcare is one of the sectors where ethical and legal issues are particularly pronounced.
Medical professionals regularly face situations that require them to make complex decisions that not only
have life-altering consequences for patients but also raise profound moral questions. These issues
include:#### 2.1 **Patient Autonomy and Informed Consent**One of the fundamental ethical principles
in healthcare is respect for patient autonomy—the right of patients to make decisions about their own
bodies and medical treatments. This principle is enshrined in the legal concept of informed consent.
Informed consent requires healthcare providers to
Text Bank For
Questions and Answers; Synaptic Transmission
Multiple Choice
1. Gap junctions may exhibit all of the following features except
a. the ability to pass small metabolites, including some second messengers.
b. the ability to pass electrical current bidirectionally.
c. the ability to pass electrical current unidirectionally.
d. the ability to amplify small incoming electrical signals into large regenerative potentials.
e. the ability to synchronize the activity of populations of nerve cells.
Answer: d
Textbook Reference: Signaling Transmission at Electrical Synapses
2. The capability of a nerve terminal to rapidly and dramatically produce very large changes in calcium
levels is most dependent on the
a. presence of calcium-selective ion channels.
b. enormous gradient of calcium across the membrane.
c. fact that calcium is a positively charged ion.
d. fact that calcium is a divalent cation.
e. All of the above are essential for producing large, rapid concentration changes.
Answer: b
Textbook Reference: Signaling Transmission at Chemical Synapses
3. Listed below are the individual events that make up chemical synaptic transmission.
, 1. Diffusion of transmitter across the synaptic cleft
2. Depolarization of the presynaptic terminal
3. Vesicle fusion with plasma membrane
4. Opening of voltage-gated ion channels
5. Activation of presynaptic, calcium-sensitive proteins
Which sequence represents the correct ordering of these events?
a. 1; 2; 3; 4; 5
b. 2; 4; 5; 3; 1
c. 2; 5; 4; 3; 1
d. 5; 4; 2; 3; 1
e. 1; 2; 4; 5; 3
Answer: b
Textbook Reference: Signaling Transmission at Chemical Synapses
both ethical and legal considerations when making decisions.### 2. **Ethical Issues in
Healthcare**Healthcare is one of the sectors where ethical and legal issues are particularly pronounced.
Medical professionals regularly face situations that require them to make complex decisions that not only
have life-altering consequences for patients but also raise profound moral questions. These issues
include:#### 2.1 **Patient Autonomy and Informed Consent**One of the fundamental ethical principles in
healthcare is respect for patient autonomy—the right of patients to make decisions about their own bodies
and medical treatments. This principle is enshrined in the legal concept of informed consent. Informed
consent requires healthcare providers to
4. Which characteristic is an accepted criterion for classifying a molecule as a
neurotransmitter?
a. It must be present in the presynaptic terminal.
b. It must be released in response to presynaptic electrical activity.
c. It must exert an effect on the postsynaptic cell.
d. All of the above
e. None of the above
Answer: d
Textbook Reference: Properties of Neurotransmitters
5. A scientist wishes to develop a new drug that prevents synaptic communication via neuropeptides
but not small molecule neurotransmitters. Which mechanism would be a good target for his drug?
