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alexira [117]
3 years ago
6

Describe the general composition of a protein molecule.

Biology
1 answer:
Olenka [21]3 years ago
8 0

Answer:Proteins are composed of amino acid molecules linked together by peptide bonds. C, H, N, S, and O are typical atoms that compose amino acids

Explanation: I hope this help mark me brainliest

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B.) potassium is the answer 
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Parkinson disease is associated with demyelination of CNS neurons. a pyramidal nerve tract lesion. insufficient production of ac
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The correct option is: <em>a deficiency of dopamine in the substantia nigra.</em>

Explanation:

The substantia nigra is the principal site involved in the physiopathology of Parkinson´s disease.

Cells from this area degenerate and die progressively causing important degeneration in the central nervous system. The cells that die -with no known reason- are those that produce dopamine and proportionate dopaminergic innervation to the encephalon. In fact, almost all the symptoms exhibited by patients with the disease can be explained by the lack of dopamine in the substantia nigra.  

This area uses the neurotransmitter to communicate neurons from the base ganglia. Ganglia are responsible of modulating and modifying movements.

The nigrostriatal system participates in planning and automatic execution of learned movements. When the ganglia activity decreases, so it does the amount and velocity of movements, something typical of the disease.  

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2 years ago
When the stress response is initiated, changes come about because of the activation of a branch of the nervous system called the
rosijanka [135]

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autonomic nervous system

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6 0
2 years ago
Here’s part b of what I asked before
dedylja [7]

Explanation:

All cells have a plasma membrane, ribosomes,and DNA. The plasma membrane, or cell membrane, is the phospholipid layer that surrounds the cell and protects it from the outside environment. They both use ribosomes for producing proteins.

+sorry i made a mistake on the previous question. Prokaryotic cell doesn't have nucleus. I obviously didn't know the right meaning of this word bc im not a native english speaker

6 0
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HURRY!
olya-2409 [2.1K]

Answer:

0.153

Explanation:

hope this helped you

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2 years ago
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