Scientists are looking to determine the primary productivity of a lake by analyzing its oxygen net primary productivity. How are scientists able to measure how much oxygen is used during a plant’s cellular respiration processes?(1 point)

Question

Responses

by observing cellular respiration only when photosynthesis occurs
by observing cellular respiration only when photosynthesis occurs

by observing cellular respiration under bright light conditions
by observing cellular respiration under bright light conditions

by observing cellular respiration under the absence of light
by observing cellular respiration under the absence of light

by observing cellular respiration by studying biomagnification

Answer 1

Scientists can measure how much oxygen is used during a plant’s cellular respiration processes by observing cellular respiration under the absence of light.

In the absence of light, photosynthesis does not occur, allowing researchers to measure the oxygen consumed solely due to respiration.