Use your knowledge of the first three stages of cellular respiration to determine which explanation is correct.

Where are the options? btw,

2 ATP produced in each glycolysis and Krebs cycle whereas 32 in electron transport chain

It is easier to remove electrons and produce CO2 from compounds with three or more carbon atoms than from a two-carbon compound such as acetyl CoA.

Explanation:

Since the two-carbon acetyl group of acetyl CoA can be oxidized to two molecules of CO2, attaching the acetyl group to a four-carbon acid to produce a six-carbon acid is much more complicated (citrate). Citrate can then be oxidized in a series of reactions to produce two molecules of CO2.

explanation:

b,bacteria convert nitrates

into nitrogen gas.

d,plants and animals take in

and use nitrogen compounds.

e,bacteria break down waste    

products and return nitrogen  

to the soil.

a,bacteria convert atmospheric

nitrogen to ammonia.

c,bacteria convert ammonia

to nitrites and nitrates.