Respiration in Biology: Aerobic & Anaerobic Processes

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Aerobic respiration occurs in the presence of oxygen, producing carbon dioxide, water, and 38 ATP from glucose, while anaerobic respiration occurs without oxygen, yielding carbon dioxide, ethanol, and only 2 ATP. Humans primarily perform aerobic respiration, whereas anaerobic respiration is common in organisms like deep soil bacteria. When an organism relying on aerobic respiration ascends a mountain with reduced oxygen, it may switch to anaerobic respiration due to insufficient oxygen supply. This switch results in decreased energy production and potential accumulation of byproducts like ethanol. Understanding these processes is crucial for studying energy production in various organisms.
Peter G.
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The following represent two processes of energy production. The letters X and Y represent two products:

Process 1:

Glucose → Pyruvic Acid → Carbon Dioxide + X + 38 ATP - Happens with Oxygen​

Process 2

Glucose → Pyruvic Acid → Carbon Dioxide + Y + 2 ATP - Happens without Oxygen​

Questions:

a) Name process 1 and 2 as well as the substance X and Y
b) Name the living organisms that conduct each of the processes
c) Explain what would happen to an organism that performs the first process as he climbed a mountain, where there's less air:

My attempts:
a) Process 1 would be Aerobic Respiration while process 2 would be anaerobic respiration (or fermentation?), but I don't know if I have to go into further detail (any clues?)

X would therefore be water while Y would be Ethanol

b) Process 1 - Us, humans
Process 2: Deep soil bacteria

c) In such scenario, the organism would suffer from a lack of oxygen supply hence, having to switch to anaerobic respiration.

Thanks,
Peter G.
 
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