aerobic & anaerobic respiration Flashcards
aerobic equations
glucose + oxygen ——-> carbon dioxide+ water
C₆H₁₂O₆ +6O₂ ——-> 6CO₂ + 6H₂O
anaerobic equations
glucose ——-> lactic acid (in muscle cells)
glucose ——-> ethanol + carbon dioxide (in plants and yeast cells)
anaerobic
without oxygen- the incomplete breakdown of glucose
what is the most efficient way to transfer energy from glucose
aerobic respiration
where do the reactions in aerobic respiration take place?
mitochondria
when is anaerobic respiration used?
If there is not enough oxygen available. For example, when you do vigorous exercise and your body can’t supply enough oxygen to your muscles, they start doing anaerobic respiration as well as aerobic
why does anaerobic reparation not transfer as much energy as aerobic?
because the glucose isn’t fully oxidised (broken down) as it doesn’t combine with oxygen so less energy transferred
what is anaerobic respiration in yeast cells called?
fermentation
where is fermentation used?
In the food and drink industry. Carbon dioxide from fermentation makes bread rise, and the fermentation process in beer and wine-making produces the alcohol.
why is glucose oxidised in aerobic respiration?
to release energy from the mitochondria
list three differences between aerobic, anaerobic respiration
- AE-large amount of energy released, AN-small amount of energy released, but quickly
what is the difference in presence of oxygen in aerobic and anaerobic respiration, and fermentation?
Oxygen is required for aerobic respiration to take place. However, it isn’t required and is rarely present in anaerobic respiration and fermentation.
what is the difference in the oxidation of glucose in aerobic and anaerobic respiration, and fermentation?
Glucose is fully oxidised in aerobic respiration. However, in anaerobic respiration and fermentation, the oxidation of glucose is incomplete, and the products still contain energy.
what is the difference in the products in aerobic and anaerobic respiration, and fermentation?
Carbon dioxide and water are the products in aerobic respiration, and they don’t contain stored chemical energy. In anaerobic respiration the product is lactic acid and still contains stored chemical energy. In fermentation, the products are ethanol and carbon dioxide and they still contain stored chemical energy.
what is the difference in the amount of energy released in aerobic and anaerobic respiration, and fermentation?
In aerobic respiration, a large amount of energy is released but in anaerobic respiration and fermentation a small amount of energy released, but it is released quickly.
