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Summary Topic 7 Anaerobic respiration

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Edexcel Biology Topic 7 Anaerobic respiration, lactic acid, glycolysis

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Study Level
A/AS Level
Examinator
OCR
Subject
Biology A
Unit
Topic 7
All documents for this subject (7)

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Uploaded on
January 20, 2025
Number of pages
1
Written in
2023/2024
Type
Summary

Subjects

  • topic 7
  • edexcel
  • biology

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Anaerobic respiration

No O2 ETC
-
, cant function ,
reduced electron carriers
accumulate


S.I units ↳ reoxidise reduced electron carriers -
reoxidise NADA

Lactic acid anaerobic respiration

↳ -NAD
( NADH + 1+

Pyruvate * Lactic acid


-


damage limitation
glycolysis can continue (2ATP)
-




-
build up is toxic
>
- lactic acid in muscle is taken to
he liver
↳ debt
oxygen
↳ to CO2tATP
fully oxidises get water +




lactic acid
Oxy gen



-
~
↑


mem
Oxygen ↑ debt

Requirement


Re St




Time

In muscles : Athe start of exercise -


before extra
oxygen can be supplied rely on creative phosphate
, in
ATP
muscle
fibres supplying energy to produce
,



before aerobic respiration takes over
again

Creatine Phosphate + ADP - Create +
ATP
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