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Zusammenfassung Lernen auf molekularer Ebene - Langzeitpotenzierung

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30-01-2023

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Lernen auf molekularer Ebene erklärt anhand der Langzeitpotenzierung in einer NMDA-Synapse mit eigener Abbildung und Text

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Institution: Secondary school
Study: Gymnasium
Course: Biologie
School year: 1

All documents for this subject (1209)

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Uploaded on: January 30, 2023
Number of pages: 2
Written in: 2020/2021
Type: Summary

Subjects

synapsen
lernen
langzeitpotenzierung
nmda synapse
neurologie
biologie
abitur
erregungsweiterleitung
glutamat
second messenger

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GRUNDLAGEN
Veränderung von Synapse
• schnellere Weiterleitung von Reize
• Speicherung von Informatione

Mechanismen
1. erhöhte Transmitterkonzentration in der Präsynaps
2. höhere Anzahl von Rezeptoren/ Ionenkanäle in der Postsynaps
3. schnellere Wiederaufnahme von Transmittern in der Präsynaps
4. Bildung neuer Synapsen

LANGZEIT POTENZIERUNG
in einer NMDA-Synaps
Transmitter: Glutamat

NMDA-Synapse bei normaler Erregun
• AMPA-Rezeptoren durch Glutamat geöffne
• NMDA-Rezeptoren blockiert
• Natrium-Ionen strömen in die Postsynapse
• Depolarisation

zertor

Of
wat wat

NMDA-Synapse bei erhöhter
Erregun

l • Öffnung der NMDA-Rezeptoren durch
Glutama
• Eintreten von Calcium-Ione

Fünf
• LTP: frühe Phase und späte Phase

Motto
zerstor

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Eta
CALMODÄN
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IEoteinbiosyntnese

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Zusammenfassung Lernen auf molekularer Ebene - Langzeitpotenzierung

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