respiration Flashcards
what is cellular respiration
the process that supplies us with the energy we need
what type of reaction is respiration and why
it’s an exothermic reaction because it releases energy
respiration takes place in what?
in all living cells
what are the 2 different types of respiration
what are their differences
aerobic respiration glucose reacts with oxygen and produces carbon dioxide and water and releases energy glucose+oxygen—>carbon dioxide+water releases energy anaerobic respiration
what is the word equation for aerobic respiration
glucose + oxygen -> carbon
dioxide + water
what does aerobic respiration release
why?
a great deal of energy
the glucose molecule has been fully oxidised
what are the chemical symbols for aerobic respiration
C6H12O6+O2->CO2+H2O
how is anaerobic respiration carried out in muscles
when there is a shortage of oxygen, muscle cells respire anaerobically
during anaerobic respiration in muscled, glucose is converted to lactic acid
what does anaerobic respiration not require?
oxygen
1 key difference between aerobic and anaerobic respiration
anaerobic releases much less energy than aerobic because
the oxidation of glucose is incomplete
how is anaerobic respiration taken place in plant and yeast cells?
the glucose is converted to ethanol and carbon dioxide. No oxygen is needed for this reaction
glucose—>ethanol + carbon dioxide
produces energy
in what 2 things does anaerobic respiration take place?
muscles
plant and yeast cells
what is fermentation
anaerobic respiration in yeast cells
what is anaerobic respiration in yeast cells called
fermentation
what can we use fermentation for
alcoholic drinks such as beer
