Question

write the experiment to that heat and co2 is released during anaerobic respiration.​

Answer 1

Answer:

Aim: To show that CO2 is released during respiration.

Apparatus and Materials Required:  A conical flask, a beaker, a cork with a hole, a glass tube bent at right angles at two places, a small test tube, KOH solution, thread, colored water.

Procedure:

1. Take the conical flask and put some germinating gram or pea seeds in it.

2. Insert the shorter end of the glass tube through the hole in the cork and fix it on the conical flask.

3. Before fixing the cork, hang a test tube containing KOH solution inside the conical flask with the help of a thread.

4. Take colored water in the beaker and keep the longer end of the glass tube dipped inside it.

5. Make the conical flask airtight by applying Vaseline on its rim.

6. Note the initial level of water in the tube.

7. Observe and note the rise in the water level after an hour, without disturbing the apparatus.

Observations:

 The water level rises up in the bent tube.

Result:

The rise in the level of water indicates that CO2 is produced by germinating seeds during respiration. Actually, the germinating seeds respire and produce CO2, which is absorbed by KOH solution. This creates a vacuum in the conical flask. The air present in the bent glass tube moves into the conical flask. This pulls the water in the bent tube further up.

Answer 2

Write the experiment to that heat and co2 is released during anaerobic respiration.​

• The incomplete oxidation of food that results from respiration that takes place in the absence of oxygen results in substantially less energy being released. Carbon dioxide is still created, though. The process takes place in the cytoplasm and is known as anaerobic respiration.
• The KOH solution in the little test tube absorbs the CO2 that the germination of the seeds in the conical flask releases during breathing. As a result, a small vacuum is created inside the flask, forcing the water up the delivery tube. It demonstrates that seeds that are germination carbon dioxide during respiration.
• One glucose molecule is changed into two pyruvate molecules during glycolysis, yielding two net ATP and two NADH. The two pyruvate molecules are first changed into two acetaldehyde molecules during NADH regeneration, which results in the release of two carbon dioxide molecules.
• Consequently, three times during aerobic respiration once during oxidative decarboxylation of pyruvate and twice during the Krebs or citric acid cycle carbon dioxide is emitted.

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