Question

A researcher is studying the rate of consumption of CO₂ by some plants in a sealed container. If the plants consume and release gases according to the following photosynthesis reaction, what does the researcher needs to be concerned about as the reaction proceeds?

6CO₂(g) + 6H₂O(l) → C₆H₁₂O₆(s) + 6O₂(g)

a) The loss of the partial pressure of reactants

b) The build-up of total pressure

c) The loss of total pressure

d) The loss of partial pressure of products

e) Keeping the plant in a dark room

Answer 1

The correct answer is option e- Keeping the plant in a dark room

Explanation: The researcher is studying the rte of consumption of CO₂. So, if he keeps the sealed container in a dark room, CO₂ will not be absorbed and O₂ will not be released as photosyntheis is not occuring. On the other hand in dark room, CO2 will be liberated and O₂ will be consumed due to respiration. So, if this happens estimation of CO₂ consumption cannot be determined precisely. So the correct answer is option e.