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Summary A Level Biology Notes - Respiration

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Complete AQA A Level Biology notes on respiration with diagrams, definitions to support your understanding. Details include: Glycolysis Link reaction Krebs cycle Oxidative phosphorylation Alternative respiratory substrates Anaerobic respiration

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AQA
Course
Respiration









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Connected book

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Glenn Toole, Susan Toole AQA Biology A Level Student Book
  • april 2015
  • 9780198351771
  • 1

Written for

Study Level
A/AS Level
Examinator
AQA
Subject
Biology
Unit
Respiration
All documents for this subject (2)

Document information

Summarized whole book?
No
Which chapters are summarized?
Respiration
Uploaded on
November 30, 2020
Number of pages
6
Written in
2019/2020
Type
Summary

Subjects

  • glycolysis
  • pyruvate
  • link reaction
  • krebs
  • oxidative phosphorylation
  • anaerobic respiration
  • acetyl

Content preview

Cristal
stores
Respiration
s ribosomes
oµµ


loop A
Miaeteriff
enzyme
controlledreactions

Glycolysis
First stage of aerobic and anaerobic respiration
Occurs in cytoplasm

Split Gcarbon glucose into 2 3 carbon pyruvate


Glucose
carbon
atom
I
ATP ATP

ADPtPi ApptPi

CYTOPLASM Phosphorylated Glucose
9
poop prevents diffusion AND
I
P
1P y cellmembrane
makesmore reactive


Triose Phosphate L
Those Phosphate
agg

oxidised oxidised
NAD NAD
Reduced
NAD
2K
C NAD
2h
Reduced


2Pi12A
f2Pit2ADP
2ATPC 2ATP


Pyruvate pyruvate

, ymu l lym
Activation of glucose
by phosphorylation
Splitting of the phosphorylated glucose to produce triodephosphateCTP

Oxidation of thosephosphate to pyruvate
Production of ATP by substratelevelphosphorylation and reduced NAD




Energy Yields from Glycolysis
Netgain of 2 ATP
2 reduced NAD provideenergy for more ATP in oxidative phosphorylation

2 pyruvate


Glycolysis does not require Oz
Pyruvate produced can be converted to lactate or ethanol in anaerobic
respiration



link Reaction

Pyruvate enters mitochondrial matrix by activetransport
Pyruvate oxidised to form acetate 12C
Oz and 2Htlost decarboxylation and dehydrogenation
oxidisedNADto produce reduced NAD
accepted
by
Acetate combines woth coenzyme A to produce compoundcalled acetylcoenzymeA
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I have just graduated high school achieving 3A* at A Level in Maths, Chemistry and Biology. I am currently studying Medicine at St George's University of London. Over the 2 years, I have made detailed notes on the OCR Chemistry A specification and AQA Biology specification. I ranked highly in my cohort for Chemistry and Biology (2/122 and 3/91). I hope these notes will help you in your A Level study.

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