What is the partial pressure of oxygen?
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20 kPa
Prokaryotes
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pump H+ ions out of the cells, have a double membrane, a proton gradient,
an electron transport system and perform glycolysis
NAD+ is reduced during:
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pyruvate oxidation, citric acid cycle and glycolysis
Pyruvate oxidation
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happens in the mitochondrial matrix in eukaryotes; pyruvate goes in and
acetyl coA, NADH, and CO2 comes out
Bacterial respiration
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two forms: anaerobic and aerobic; anaerobic uses fermentation; aerobic is
similar to mitochondria but uses the cell membrance to pump H+ to
outside; some gram-negative bacteria have an inner membrance and outer
membrane; H+ ions are pumped to the inner membrane space; the electron
transport is located on the outer membrane surface
Partial pressure
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measured in mm Hg, kPa and atm; standard pressure 760 mmHg = 101 kPa
, Citric acid cycle
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also known as the krebs cycle; has 8 reactions; occurs in the matrix (inner
part) of the mitochondria; acetyl coA goes in and NADH, FADH2, and ATP
comes out
What does glycolysis NOT require?
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O2 (oxygen)
Partial pressure in biology
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oxygen and CO2 are dissolved in body fluids and in water; in the body PO2
is 60 mmHg and in water PO2 is 155 mmHg; oxygen diffuses from high
concentration to lower concentration; in the flatworm it has cells that are all
near enough to water in order for diffusion to be effective since they have
no system for O2 transport
Oxidative phosphorylation
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20 kPa
Prokaryotes
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pump H+ ions out of the cells, have a double membrane, a proton gradient,
an electron transport system and perform glycolysis
NAD+ is reduced during:
,Give this one a try later!
pyruvate oxidation, citric acid cycle and glycolysis
Pyruvate oxidation
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happens in the mitochondrial matrix in eukaryotes; pyruvate goes in and
acetyl coA, NADH, and CO2 comes out
Bacterial respiration
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two forms: anaerobic and aerobic; anaerobic uses fermentation; aerobic is
similar to mitochondria but uses the cell membrance to pump H+ to
outside; some gram-negative bacteria have an inner membrance and outer
membrane; H+ ions are pumped to the inner membrane space; the electron
transport is located on the outer membrane surface
Partial pressure
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measured in mm Hg, kPa and atm; standard pressure 760 mmHg = 101 kPa
, Citric acid cycle
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also known as the krebs cycle; has 8 reactions; occurs in the matrix (inner
part) of the mitochondria; acetyl coA goes in and NADH, FADH2, and ATP
comes out
What does glycolysis NOT require?
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O2 (oxygen)
Partial pressure in biology
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oxygen and CO2 are dissolved in body fluids and in water; in the body PO2
is 60 mmHg and in water PO2 is 155 mmHg; oxygen diffuses from high
concentration to lower concentration; in the flatworm it has cells that are all
near enough to water in order for diffusion to be effective since they have
no system for O2 transport
Oxidative phosphorylation
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