Animal Cell Culture and Regulation
How does CO2 help in the cell metabolism during cell culture?

For monitoring pH of the culture
All of these
It participates in the de novo synthesis of purines and pyrimidines
Helps in the cells respiration

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Animal Cell Culture and Regulation
During the growth of animal cells in culture, it is noticed that the cells do not look very healthy. After an investigation, this is found that there is a lot of lactic acid in the culture fluid. What is probably wrong with this culture?

Ethyl alcohol is being produced in excess
Glycolysis is being inhibited
The cells have too much oxygen
The cells do not have enough oxygen

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