5. Inhibiting an extracellular signal terminator, such as acetylcholinesterase (
ID: 3473797 • Letter: 5
Question
5.
Inhibiting an extracellular signal terminator, such as acetylcholinesterase (AChE), causes a
A)
decrease in the target cells receptors
B)
divergent hormone effects
C)
decreases in the removal, degradation, or destruction of the hormone
D)
decrease in receptor binding
E)
None of the above
6.
Serotonin
A)
may lead to clinical depression if the levels in your brain are too high
B)
may be degraded by AChE (acetylcholinesterase) and SSRI's
C)
is lipophobic
D)
is a derivative of arachidonic acid
E)
A & C
5.
Inhibiting an extracellular signal terminator, such as acetylcholinesterase (AChE), causes a
A)
decrease in the target cells receptors
B)
divergent hormone effects
C)
decreases in the removal, degradation, or destruction of the hormone
D)
decrease in receptor binding
E)
None of the above
Explanation / Answer
5A) Acetylcholinesterase it is an enzyme that catlyzes the breakdown of acetylcholine ,a Neurotransmitter.Inhibiting an extracellular signal terminator such as Acetylcholinesterase causes decrease in receptor binding. Because during neurotransmission at the Pre synaptic junction and in to synaptic cleft and binds with the Ach receptors in the post synaptic membrane relaying the signal from the nerve
ANS ) D
6A) Seotonin is a neurotransmittor ,presently present in digestive system and blood plateless and central nervous system .It is made up of an acid called tryptophan . Serotonin is a natural mood stablizer .Its the chemical used in sleeping, eating and digestion
Reduce Depression ,Anxiety,and Heal wounds
.SSRI(SELECTIVE SEOTONIN REUPTAKE INHIBITOR) .It will increase the level of seotonin and used to treat depression and anxiety
ANS) C IS Lipophobic as serotonin is a chemical ,it is lipophobic that means fear to fat
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