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Katena32 [7]
2 years ago
9

Explain how the reduction in dopaminergic signaling that could precede the development of motor symptoms in pd could explain the

"parkinsonian personality
Biology
2 answers:
dimaraw [331]2 years ago
6 0
<h2>Reduction in Dopaminergic Signaling </h2>

Personalities who are suffering from Parkinson’s disease usually exhibit specific character traits which can be associated with the loss of dopamine transmitters in their neurotic system. Such a loss creates problems in movements of the motor. In short such people generally have features like remaining submissive, firm, arranged, determined and originality-seeking.  


olga2289 [7]2 years ago
5 0

<span>People with Parkinson’s disease often times develop certain personality characteristics which can be linked to the reduction of dopamine transmitters in their nervous system. This causes problems in motor movements. As a result, this group of people commonly have traits such as being passive, rigid, orderly, persistent and novelty-seeking. </span>

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Rotenone, a toxic compound isolated from plants, strongly inhibits the transfer of electrons from iron-sulfur centers in Complex
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Answer:

(A) It prevents electron flow from the iron-sulfur centers in complex 1 to the ubiquinone. Due to reduction in electron transfer rate, there is a decrease in the production of ATP which is dangerous for some insects and fish over time.

(B) It also prevents electron flow from cytochrome b to cytochrome c1 at the complex III which leads to QH2 accumulation. If oxidized Q is not present, these is alteration of electron flow and the production of ATP is altered.

(C) Rotenone only prevent electron transfer into the chain at Complex 1  but it does not affect electron transfer at Complex II. Although there is slow ETC, it does not stop completely. However, Antimycin A prevents the oxidation of QH2, the final electron acceptor crom complex I and complex II. Thereby, stopping the production of both ETC and ATP. It can be concluded that antimycin A is a more potent poison.

Explanation:

Rotenone prevents electron flow from the iron-sulfur centers in complex 1 to the ubiquinone. Due to a reduction in electron transfer rate, there is a decrease in the production of ATP which is dangerous for some insects and fish over time. Antimycin A also prevents electron flow from cytochrome b to cytochrome c1 at the complex III which leads to QH2 accumulation. If oxidized Q is not present, there is an alteration of electron flow and the production of ATP is altered. Antimycin A is more potent than rotenone.

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How does diploidy help to preserve genetic variation? see concept 23.4 (page 498)?
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The phosphorylation of fructose 6-phosphate to fructose-1,6-bisphosphate is the committed step in glycolysis because.
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The phosphorylation of fructose 6-phosphate to fructose-1,6-bisphosphate is the committed step in glycolysis because<u> fructose 1,6-bisphosphate can undergo no other reactions than those of glycolysis.</u>

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