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Use the following information to answer the questions below.
In the presence of oxygen, the three-carbon compound pyruvate can be catabolized in the citric acid cycle. First, however, the pyruvate (1) loses a carbon, which is given off as a molecule of CO₂, (2) is oxidized to form a two-carbon compound called acetate, and (3) is bonded to coenzyme A.
-Why is coenzyme A, a sulphur-containing molecule derived from a B vitamin, added?
Sinkholes
Depressions or holes in the ground caused by the collapse of a surface layer, occurring in areas where the rock below is limestone, carbonate rock, salt beds, or other rocks that can be dissolved by groundwater.
Sinkhole
A natural depression formation caused by the dissolution of soluble bedrock or substrate collapse.
Weathering
The natural process where rocks are broken down or dissolved into smaller pieces by chemical, physical, or biological factors.
Clay Minerals
A group of hydrated silicates of aluminum, sometimes with iron, magnesium, or other cations, which possess fine-grained structures and are a major component of soils.
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Q95: Upon chemical analysis, a particular polypeptide was