Summary
OCR Biology A-Level Anaerobic Respiration Summary
A HandWritten summary which contains all the necessary A* Content for Anaerobic Respiration at OCR A-Level Biology.
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Obligate anaerobes Cannot survive in the presence of Oxygen prokaryotes i e:
.
facultative anaerobes Can :
switch to anaerobic respiration if oxygen is not present
↳ i e .
yeast
acrobes Can AtP in presence of oxygen
Obligate only synthesise the
:
↳ i e .
Mammals
fermentation Complex :
organic compounds are broken down into simpler inorganic
compounds without O, or an electron transport Chain
Lactate fermentation in mammals :
H
H
R
lactate
pyruvate
I
N ADH ·
NAD lactate
dehydrogenase
>
·
Lactic Acid Is converted into in the liver screates oxygen debt
glucose
:
↳ Cannot occur
indefinitely
:
Not
enough ATP is produced ,
lactic acid denatures
proteins
Alcoholic fermentation in
yeast and plants
:
NAD
on NADH 7
pyruvate pyruvate decarboxylase
>Ethapal etnanal venyorogenase
? Ethan Ol
↳ can occur
indefinitely
Respiratory Substrate
Triglycerides hydrolised into guycerol and fatly acids
· :
↳
Glycerol Can be converted to pyruvate
:
↳
fatty acids Undergo beta :
oxidation to convert into an
acetyl group
·
Liver :
Amino acids can be deaminated and lactate can be converted into
pyruvate
·
Brain Ketone bodies become an
can
acctyl group
:
Quotient /
Respiratory vol CO2 vol Ou
:
.
.
↳
Carbohydrate 1 O
:
.
.
·
Protein :
0 9 .
·
Lipid : 0 7 .
↳ substrate store is dependent on the no C-H bonds
energy
.
Potassium hydroxide CO2
Respirometer absorbs
:
·
Coloured fluid will move with
Oxygen uptake
A control chamber can also be used to account for
pressure change
·
when CO2 in the air is absorbed
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