Question

Consider the scenario with the sealed jars in Figure 8-4. Choose the most correct statement.

Option 1: Carbon dioxide produced by jar A allows the candle to remain burning longer than jar B.
Option 2: Oxygen produced by the plant in jar A during cellular respiration will allow the candle to remain burning for longer than jar B.
Option 3: Both A and B are correct.
Option 4: Oxygen produced by the plant during photosynthesis in jar A will allow the candle to remain burning for longer than jar B.

Answer 1

The correct statement is Option 1: Carbon dioxide produced by jar A allows the candle to remain burning longer than jar B.

Step-by-step explanation:

The correct statement is Option 1: Carbon dioxide produced by jar A allows the candle to remain burning longer than jar B.

In the scenario with the sealed jars, the candle jar creates a higher concentration of carbon dioxide and a lower concentration of oxygen. This environment is favorable for capnophiles, bacteria that grow best in such conditions. The candle consumes the oxygen and releases carbon dioxide, allowing jar A to have a higher concentration of carbon dioxide compared to jar B, which results in the candle remaining burning longer in jar A.