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Respiration - Coggle Diagram
Respiration
ATP
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hydrolysis
reaction
- ATP hydrolysed to ADP
(adenosine diphosphate)
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- ADP hydrolysed to AMP
(adenosine monophosphate)
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- removal of last phosphate
+releases LESS ENERGY
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uses
provides energy for processes
- active transport
- muscle contraction
provides energy for anabolic reactions
- macromolecules assembled from smaller monomers
- e.g. starch from glucose
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present in higher amounts in cells
requiring lots of energy
- mid section of sperm cell
- many mitochondria present
What is it?
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- all energy = SUN
- converted by autotrophic organisms to chemical forms (fats, carbs + proteins)
- during photosynthesis
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definition
- biochemical pathway which takes place in cells
- results in release of energy
- from organic molecules
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Anaerobic Respiration
facts
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- NAD is regenerated in reduction
of pyruvate to ethanol/lactate
- so can be reused in glycolysis
RAPID PROCESS
- only short part of normal
aerobic pathway
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process
- during glycolysis - NAD reduced
- reduced NAD then oxidised + donate Hs to pyruvate
(allows NAD to be reformed + available to collect more Hs from glycolysis)
- pyruvate converted lactate/ethanol
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IN ANIMALS
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uses
lactate = TOXIC
- builds up in muscle cells during exercise
(as cells fail keep up with demand for oxygen)
- results in muscle fatigue & soreness/cramps
OXYGEN DEBT
lactate fermentation
- extra oxygen required - oxidise lactate built up
- why panting after exercise - ensure sufficient oxygen reaches the cells
- to pay back ‘oxygen debt’
function
- extra O2 used to
- convert lactate to pyruvate
IN PLANTS
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uses
ethanol
- basis for alcoholic drinks and fuel
CO2
- gives alcoholic drinks, such as beer carbonation
- bread making + baking = release of CO2
causes dough to rise
why occur?
- If no oxygen to act as the final acceptor in the ETC - stops working
- means NAD and FAD cannot be regenerated through the ETC
- so the biochemical pathway cannot continue
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