Photosynthesis Experiments
Trending Questions
A The presence of starch in the iodine test is confirmed by the appearance of brown colour. B During photosynthetic experiments, methylated spirit is used to decolourise the chlorophyll pigments. C The aquatic plant that is frequently used in experiments to verify the presence of oxygen is Hydrilla. D The chemical used in the test for carbon dioxide is potassium carbonate.
Which of the following would be indicators that can be used to observe transpiration occurring in a leaf?
pH paper
Litmus paper
Dry cobalt chloride paper
Bathophenanthroline Indicator Paper
The experimental set up show below is to show that
oxygen
hydrogen
water
carbon dioxide
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?
(i) Tube - 1
(ii) Tube - 5
(iii) Tube - 2
(iv) Tube - 1
(v) Tube - 4(i) Tube - 2
(ii) Tube - 2
(iii) Tube - 3
(iv) Tube - 4
(v) Tube - 5(i) Tube - 4
(ii) Tube - 1
(iii) Tube - 1
(iv) Tube - 5
(v) Tube - 2(i) Tube - 2
(ii) Tube - 5
(iii) Tube - 1
(iv) Tube - 1
(v) Tube - 2
Iodine solution is prepared using 0.3g of Iodine and
1.5g of Potassium Permagnate
2.5g of Potassium Nitrate
0.5g of Sodium Iodide
1.5g of Potassium Iodide
- dormancy
- starching
- destarching
- phosphorylation
- dormancy
- destarching
- starching
- phosphorylation
- Boil in spirit
- Boil in water
- Blueāblack color
- Perform iodine test
- Placed in hot water