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

by observing cellular respiration by studying biomagnification
by observing cellular respiration by studying biomagnification

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

Answer 1

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

In this condition, photosynthesis does not occur, so any oxygen consumption can be attributed solely to cellular respiration.