Question

i) WHAT IS THE EXPERIMENTAL SETUP DESIGNED TO SHOW.

ii) WHAT IS THE PURPOSE OF KEEPING CAUSTIC SODA OR SODA LIME IN THE FLASK A ?

iii) WHAT IS THE PURPOSE OF FLASK B ?

iv) WHAT HAPPENS IN FLASK D ?

v) WHAT MODIFICATIONS OF THE APPARATUS WOULD BE NECESSARY IF THE GERMINATING SEEDS WERE REPLACED BY GREEN LEAVES ? GIVE REASONS.



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Answer 1

1) To show that Carbon dioxide is taken for germination .

2) Soda lime turns milky when carbondioxide passes through it due to which it is kept there.

3) To prove that the soda lime turns milkly as carbondioxide is taken by the plant

4) The lime water does not changes its colour as oxygen does not reflect anything in lime water.

5)No pretreatment to the seed is given except for those ... When we use the sand , germination trays are used to carry out the .... A well developed coleoptiles in graminae containing a green leaf

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