1.

Pond weed was placed in five water-filled tubes and the experimental set up was allowed to remain as shown in the diagram alongside for 24 hours. In which tube would you expect to find: (i) the greatest increase in the dry weight of the pond weed? (ii) the plant with the least amount of starch? (iii) the most oxygen? (iv) the least carbon dioxide? (v) the plant to survive for the longest length of time?

Answer»

Pond weed was placed in five water-filled tubes and the experimental set up was allowed to remain as shown in the diagram alongside for 24 hours. In which tube would you expect to find:
(i) the greatest increase in the dry weight of the pond weed?
(ii) the plant with the least amount of starch?
(iii) the most oxygen?
(iv) the least carbon dioxide?
(v) the plant to survive for the longest length of time?





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