Question

Bubbles of oxygen
Green
water
plant
Snail
А
B
(b) Explain the physiological process as mentioned above
in (a).
(c) What is the purpose of keeping a snail in test-tube
'B' ?
(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. hydoilla​

Answer 1

Answer:

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Explanation:

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Answer 2

Test tube A will have the highest concentration of CO2. This is because test tube A contains snail. Snail is an organism that breathes in O2 and breathes out CO2. Hence, CO2 concentration increases in test tube A.

Test tube B contains a water plant, which takes in CO2 for food synthesis and gives out O2. Hence, more O2 concentration is found in test tube B.

Test tube C contains both a snail and a plant. The CO2 produced by the snail is utilized by the plant for its food synthesis and the O2 released by the plant is utilized by the snail for respiration.

Therefore, test tube A has the highest concentration of CO2.