Question

In the experiment to show that CO₂ is given out during respiration, if the germinating seeds are not moistened then

• A. CO₂ will not be released
• B. seeds will dry up and growth will stop.
• C. Rate of respiration would slow down
• D. both b and c

Answer 1

The correct option is D

both b and c

The correct answer is D.

Explanation of the correct option:

• Respiration is the metabolic process through which food is broken down with the help of oxygen to release energy.
• In an experiment of germinating seeds, if seeds are not moistened, the growth will stop, and seeds will dry up. In this case rate of respiration will also slow down.

Explanation of the incorrect options:

Option A:

• In the experiment, carbon dioxide will be released but in less amount as respiration is slowed down.

Option B:

• In this option, only a stoppage of growth is indicated, and it is not mentioned that the respiration rate will be slow down.

Option D:

• In this option decrease in respiration rate is indicated, and it is not mentioned that there is a stoppage of growth.

Therefore, if seeds are not moistened in this experiment, they will dry up, and their growth will hamper, causing the respiration rate to slow down.