Question

Which of the two flasks,
(A) or (B), is a control​

Answer 1

Answer:

Flask B is in control setup.

Answer 2

In this question, we are asked to tell which of the flask is in control.

• Flask B is controlled as seeds are boiled in Flask B with an antiseptic to avoid bacterial decay.
• To demonstrate the role of oxygen in respiration
• Since potassium hydroxide (KOH) can absorb carbon dioxide, it is kept in flasks A and B to detect its presence.
• The oxygen that is present in flask A is used up during the respiration process.
• The KOH in the flask absorbs the generated as a result of respiration.
• As a result of the oxygen being used, a space is created, which causes the colored water in flask A's tubing to rise.
• Because the boiled seeds are dead and unable to breathe, the boiled beans are retained in flask B and are soaked in a disinfectant.
• Therefore, the respiration process does not occur in flask B. Breathing causes the colored water in flask A to rise.
• Respiration is the catabolic process of releasing energy from simple sugars to carry out living processes.

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