Biologie LK NRW Tracer Methode Zusammenfassung-Erklärung

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Biologie LK NRW Tracer Methode Zusammenfassung-Erklärung

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Übersicht die die Tracer Methode als Untersuchungsmehtode in der Biologie beschreibt und zusammenfasst. Mit Zeichnungen

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Tracer Methode 30 11 2025
.
.

Radioaktivität

Definition : Atomkerne/instabil können sich ohne äußere Einflüsse in einen anderen

umwandeln Dabei senden sie
Atomkern .

energiereiche Strahlung aus .

Man injiziert radioaktive Stoffe eine Substanz
Markierungen : in um deren aufenthalts-

Orte/Wege sichtbar zu machen - Radioaktivität-messbar
-
z . b .: Gammakamera

Tracer Methode :

Beispiel Glukose-Pyruvat Glykolyse durch
Autoradiographie
:
.

=> radioaktiv markiert

⑳ HO-CH2

/&
,

⑳ Hop

(
OH-
OH-

no

!
ons-

3sek
&
&
no
.

30 sek .

Glukose Glukose

⑳ &
OH-
/&
no
Glukose-G-Phosphat
,

⑳ & cite cite

Pyruvat
Inkubationszeitverlängerung D

Die Zelle bleibt bei Versuchen unterschiedl mit der markierten Glukose
versch
lange
-

. .

=>
Zelle baut Glukose ab (Glykolyses
Abtöten der Zelle zu bestimmten Zeitpunkten
zeigt die Glukose zu versch .
Zuständen/

Orten-Reihenfolge-Orte d Stoffwechsels
.
bekannt

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Study: Gymnasium
School year: 1
Uploaded on: August 4, 2026
Number of pages: 1
Written in: 2025/2026
Type: Summary

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