Question

Two statements are given – one labelled Assertion (A) and the other labelled Reason (R). Select the correct answer from the codes given below:
Assertion (A): CO₂ incubators prevent the desiccation of the animal cell culture medium.
Reason (R): A pan of water is kept at all times in a CO₂ incubator chamber to maintain high relative humidity.

• A. Both Assertion (A) and Reason (R) are true and the Reason (R) is the correct explanation of the Assertion (A).
• B. Both Assertion (A) and Reason (R) are true, but the Reason (R) is not the correct explanation of the Assertion (A).
• C. Assertion (A) is true, but Reason (R) is false.
• D. Assertion (A) is false, but Reason (R) is true.

Hint:

CO₂ incubators maintain humidity using a water pan to keep cell culture medium hydrated and viable.

Answer 1

The Correct Option is A

CO₂ incubators are designed to maintain an environment optimal for animal cell cultures, which includes maintaining high humidity to prevent desiccation (drying out) of the culture medium. The pan of water inside the incubator helps sustain this humidity level, thus preventing the medium from evaporating.

• Assertion (A): True. Desiccation prevention is important for cell culture health.
• Reason (R): True. The water pan maintains the humidity needed.
• The Reason correctly explains the Assertion, so option (A) is correct.