Answer;
Muscle cells in oxygen deprivation convert pyruvate to lactate, and in this step gain NAD+.
Explanation;
When oxygen is insufficient or not present the muscle cells for further oxidation of pyruvate and NADH produced in glycolysis, NAD+ is regenerated from NADH by reduction of pyruvate to lactate.
Pyruvate is converted to lactate by the enzyme lactate dehydrogenase.
Disrupts the nitrogen cycle by contaminating the groundwater and making it more difficult for the plants to absorb the nitrogen and causes the phosphorus cycle to accelerate, resulting in an excess of phosphorus in water and soil.
Deepwater currents in the ocean form near the bottom of the ocean and are caused mainly by differences in the density of the water. These density changes are due to the amount of salt and temperature of the water.
It ends when a stop condon is reached