A plant in the dark uses 0.02 ml of O₂ per minute. The same plant in sunlight releases 0.14 ml of O₂ per minute. Its rate of gross primary production would be approximately _______ ml of O₂ per minute. A) 0.02 B) 0.12 C) 0.14 D) 0.16 E) 0.18

Question

Quizplus · Accepted Answer

The rate of gross primary production is the total amount of oxygen produced by photosynthesis. In the dark, the plant uses 0.02 ml of O2 per minute for respiration. In sunlight, it releases 0.14 ml of O2 per minute, which is the net production. Therefore, the gross production is the net production plus the oxygen used in respiration: 0.14 + 0.02 = 0.16 ml of O2 per minute.

A Plant in the Dark Uses 0