ETIABO: Respiration- Anaerobic Flashcards
If respiration is only anaerobic, pyruvate can be converted to ethanol or lactate using reduced NAD. The oxidised NAD produced in this way can be used in further glycolysis.
The first step in both aerobic and anaerobic respiration is _______.
Glycolysis
Where does glycolysis take place?
Cytoplasm
What are we left with at the end of glycolysis?
2 molecules of pyruvate
In anaerobic respiration in animals, what is pyruvate converted into?
Lactate
In anaerobic respiration in plants/microorganisms, what is pyruvate converted into?
- Carbon dioxide
- Ethanol
Pyruvate needs _____ to form lactate.
Hydrogen
Pyruvate needs hydrogen to form lactate. Where does this hydrogen come from?
NADH
Formed in glycolysis where triose phosphate is converted into pyruvate.
In animals, how do we ensure that glycolysis can still occur through anaerobic respiration?
- NAD is reduced in glycolysis through the conversion of triose phosphate into pyruvate, which produces NADH.
- NADH is used in anaerobic respiration in the conversion of pyruvate into lactate- producing NAD.
- The cycle of NAD and NADH production allows for these materials to be recycled and available.
- The conversion of trisose phosphate into lactate produces 2x ATP.
What happens to the NAD produced in anaerobic respiration?
Returns to the stage in glycolysis where triose phosphate produces pyruvate.
Pyruvate needs ______ to form ethanol and carbon dioxide.
Hydrogen
Pyruvate needs hydrogen to form ethanol and carbon dioxide. Where does this hydrogen come from?
NADH
Formed in glycolysis where triose phosphate is converted into pyruvate.
Where does anaerobic respiration occur?
Cytoplasm
What is the overall ATP yield of anaerobic respiration?
2 ATP
