Examlex
In anaerobic conditions the NADH produced in glycolysis is not reoxidized by oxygen in the mitochondria but is oxidized to NAD in the cytoplasm by an enzyme.What is the enzyme and what is the importance of this reaction for conditions of low oxygen level?
Commodity
A raw material or primary agricultural product that can be bought, sold, or traded, often interchangeable with other commodities of the same type.
Quartz
A hard, crystalline mineral composed of silicon dioxide, common in many rock types and valued for its clarity and variety of colors.
Sulfide Minerals
Minerals composed of sulfur combined with a metal or semimetal, often associated with the formation of ores.
Impermeable Rocks
Rocks that do not allow water to pass through them due to lack of porosity or permeability.
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