Question

[Biology]
{Urgent Help Request}
Diagram-Based Question

>>Is the experimental leaf a monocot or a dicot? Give a reason to support your answer.
>>Why are glass slides placed over the dry cobalt chloride papers?​

Answer 1

Answer:

(i) The colour of dry cobalt chloride paper is blue.

(ii) Dicot leaf: It has reticulate venation.

(iii) To prevent water vapour of the air from interfering the experiment.

(iv) The cobalt chloride paper placed on the lower surface of the leaf will show more pink dots as there are more stomata. The upper surface has less stomata than the lower surface.

(v) Loss of water as water vapour from the aerial parts of the plant

Answer 2

OLA HERE IS YOUR ANSWER

ANS NO 1.

(a) Blue. (b) The experimental leaf is a dicot leaf as it shows reticulate venation and there are more number of stomatal openings on the undersurface of a dicot leaf. ... This occurs because the ventral surface has more number of stomata as compared to the dorsal surface.

ANS NO 2.

Glass slides are placed on the dry cobalt paper to prevent any moisture from the atmosphere to react with the paper, as it will lead to a discrepancy in the result.

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