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 engineered to optimize conditions for animal cell cultures. This involves maintaining high humidity to avert desiccation of the culture medium. A water pan within the incubator is crucial for sustaining this humidity, thereby inhibiting medium evaporation.

• Assertion (A): Correct. Preventing desiccation is critical for the viability of cell cultures.
• Reason (R): Correct. The water pan ensures the necessary humidity levels.
• The provided Reason accurately supports the Assertion, indicating option (A) as the correct choice.