Describe one experiment you would perform to demonstrate the phenomena that the germinating seeds give out Carbon dioxide.

Describe one experiment you would perform to demonstrate the phenomena that the germinating seeds can respire even in total absence of air.

The following two chemical reactions are supposed to indicate a certain process occurring in the green plants under two different conditions:

(a) C₆H₁₂O₆ + 6O₂ → 6CO₂ + …… + 38ATP

(b) C₆H₁₂O₆ → …… + 2CO₂ + 2ATP

1. Fill in the blanks of each reaction
2. Name the process represented by the two chemical equations
3. What are the conditions under which the two reactions (a) and (b) are occurring?

The experimental set-up given below demonstrates anaerobic respiration in germinating seeds. Read the information below the figure and answer the following questions :

Seeds can respire anaerobically for some time but later the radicles dry up and seedlings could not be produced. Soaked seeds are peeled and placed over mercury for germination.

(a) Why do we fill mercury in the test tube ? Can we do the same experiment in water or air ?

(b) Name the gas released by the germinating seeds, shown (A) in the figure.

(c) Can we do the above experiment with the seeds without peeling them ?

(d) How can we test the gas released in the above set-up ? Explain in short.

(e) How can we set the 'control set-up' for the above experiment ?