This rate of reaction can be measured in the dark by determining the amount of oxygen gas consumed in a period of time? A: Primary productivity

B: Gross primary productivity

C: Net primary productivity

D: Cellular respiration

Cellular reaction rate could be assessed in the darkness by measuring the oxygen gas consumption over a certain period.  

It operates inside the oxygen maritime area (air is 20.9% oxygen), minor changes in oxygen content during breathing are difficult to measure. The rate of cellular breath can be determined in the dark by calculating the oxygen gas consumed within a time.

Wrong choices can be explained as follows:

In option A, it's wrong because it is the generation by living things of hydrogen gas in organic compounds.In option B, it's wrong because In sugar molecules, during photosynthetic, solar energy is absorbed in the rate.In option C, it's wrong because, during photosynthesis, solar energy is collected and stored.

Therefore, the final answer is "Option d".

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D: Cellular respiration

Explanation:

Because we work in a sea of oxygen (air is 20.9% oxygen) it is difficult to measure the small changes in oxygen concentration that occured during respiration. The rate of Cellular Respiration can be measured in the dark by determining the amount of oxygen gas consumed in a period of time.

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