The diagram below shows two test-tubes A and B. Test-tube A contains a green water plant. Test-tube B contains both a green water plant and a snail. Both test-tubes are kept in sunlight. Answer the question that follow:

(c) What is the purpose of keeping snail in test-tube B?

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Solution

The purpose of keeping the snail in test tube B is to have the production of carbon dioxide from the snail when it respires. This carbon dioxide would be used by the plant for photosynthesis. Rate of photosynthesis will increase with the increase in concentration of carbon dioxide.

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Similar questions

The diagram below shows two test-tubes A and B. Test-tube A contains a green water plant. Test-tube B contains both a green water plant and a snail. Both Test-tubes are kept in sunlight. Answer the questions that follow :

(a) Name the physiological process that releases the bubbles of oxygen.

(b) Explain the physiological process as mentioned above in Q.2(a) (i).

(d) Why does test-tube 'B' have more bubbles of oxygen ?

(e) Give an example of a water plant that can be used in the above experiment.

(f) Write the overall chemical equation for the above process.

Question 4
Take three test-tubes. Fill each of them with water. Label them A, B and C. Keep a snail in test-tube A, a water plant in test-tube B and in C, keep snail and plant both. Which test tube would have the highest concentration of $C O_{2}$ ?

Q. Take three test-tubes. Fill each of them with water. Label them A, B and C. Keep a snail in test-tube A, a water plant in test-tube B and in C, keep snail and plant both. Which test-tube would have the highest concentration of

C O_{2}

Take three test tubes. Fill 3/4th of each with water. Label them A, B and C. Keep a snail in test-tube A, a water plant in test-tube B, and in C, keep snail and plant both. Which test tube would have the highest concentration of CO₂?

Q. The diagram below shows two test-tubes A and B. Test-tube A contains a green water plant. Test-tube B contains both a green water plant and a snail. Both test-tubes are kept in sunlight. Answer the question that follow:

(d) Why does test-tube B have more bubbles of oxygen?

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The diagram below shows two test-tubes A and B. Test-tube A contains a green water plant. Test-tube B contains both a green water plant and a snail. Both test-tubes are kept in sunlight. Answer the question that follow: (c) What is the purpose of keeping snail in test-tube B?

The purpose of keeping the snail in test tube B is to have the production of carbon dioxide from the snail when it respires. This carbon dioxide would be used by the plant for photosynthesis. Rate of photosynthesis will increase with the increase in concentration of carbon dioxide.

The diagram below shows two test-tubes A and B. Test-tube A contains a green water plant. Test-tube B contains both a green water plant and a snail. Both test-tubes are kept in sunlight. Answer the question that follow:

(c) What is the purpose of keeping snail in test-tube B?