Essential Biochemistry - Neurotransmitters (Section 1)
1
The principal catecholamines are:
2
The main function of the neuron's axon is:
Одговорити(C)
To transmit impulses away from the cell body.
3
GABA contributes to which of the following:
4
Which neurotransmitter is associated with sleep-wake cycles?
5
What are the principal catecholamines?
6
What is the most common method of removing neurotransmitters from the synaptic cleft?
7
Which of the following is produced in the liver from phenylalanine?
8
Which of the following neurotransmitters is a catecholamine?
9
Inhibitory effects, by contrast, are exerted upon:
Одговорити(C)
Smooth muscle cells in the wall of the gut
10
Which neurotransmitter is mainly found in the hypothalamus?
11
In the synthesis of GABA, what is the precursor?
12
Where are neurotransmitters synthesized?
13
What is the precursor molecule for the synthesis of serotonin?
14
Which ion's influx causes local depolarization in the postsynaptic membrane?
15
Where are synaptic vesicles located?
Одговорити(C)
In the presynaptic bouton or knob
16
Excitatory neurotransmitters cause:
17
Which of the following are classified as catecholamines?
18
Which of the following is the first chemical neurotransmitter identified?
19
The most common process of removal of neurotransmitters after they serve their function is:
Одговорити(B)
High affinity reuptake mechanism
20
What is the result of the binding of GABA to receptors?
Одговорити(B)
Creation of hyperpolarization
21
Which of the following are types of acetylcholine receptors?
22
Одговорити(B)
A site of contact between neurons
23
Which of the following statements is correct about the degradation of neurotransmitters?
Одговорити(B)
It is necessary to limit the duration of stimulation or inhibition of the postsynaptic membrane.
24
What is the precursor molecule for epinephrine?
25
Which enzyme degrades acetylcholine?
26
Which condition is NOT related to catecholamine effects?
Одговорити(D)
Slows the rate of metabolism
27
What conditions can damage neurotransmitters?
28
What process is involved in the degradation of serotonin?
29
What process happens during the repolarization of the muscle membrane in the mechanism of action of acetylcholine?
30
Which of the following neurotransmitters is primarily associated with the reward system?
31
Which of the following is the most abundant inhibitory neurotransmitter in the brain?
32
Neurotransmitter serotonin is derived from:
33
Which of the following statements is correct about the role of dopamine?
Одговорити(C)
It controls voluntary movement.
34
Which of the following is an excitatory neurotransmitter?
35
What process is involved in the synthesis of serotonin?
36
What is a 'bouton' or 'presynaptic knob'?
Одговорити(B)
The end of a neuron process
37
What is the role of the postsynaptic membrane?
Одговорити(B)
To receive neurotransmitters.
38
What are some of the inhibitory effects of catecholamines?
39
Which of the following is NOT a function of Serotonin?
40
What is the role of the synaptic cleft?
Одговорити(C)
To provide space for neurotransmitter release
41
What is the name of the space that separates one neuron from another?
42
After action, catecholamines:
Одговорити(B)
Dissociate from receptors quickly, causing the duration of the biological response to be brief.
43
Which of the following is NOT a part of a typical synapse?
44
Which enzyme degrades acetylcholine?
45
The processes extending from the cell body are:
46
Acetylcholine is synthesized in the neuronal cytoplasm from:
47
Which of the following is not a neurotransmitter?
48
Where is histamine mainly found?
49
Which of the following is a function of GABA?
50
Одговорити(B)
Nerve Impulse Transmission
