Experiments on Photosynthesis
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Write an activity to show the effect of saliva on starch.
These steps prove the importance of
- chlorophyll
- sunlight
- carbon dioxide
- oxygen
- True
- False
Determine the methods used to test for each of the following in milk.
Starch - | (A) _____ |
Detergent - | (B) _____ |
Urea - | (C) _____ |
Water - | (D) _____ |
A - Vigorous shaking, B - Iodine test, C - Lactometer, D - Litmus test
A - Iodine test, B - Vigorous shaking, C - Litmus test, D - Lactometer
A - Iodine test, B - Lactometer, C - Litmus test, D - Vigorous shaking
A - Litmus test, B - Vigorous shaking, C - Iodine test, D - Lactometer
Iodine is used to test the presence of starch.
True
False
- dormancy
- destarching
- starching
- phosphorylation
The confirmation of the presence of carbohydrate can be done using:
Iodine
Copper sulphate solution
Caustic soda
All of the above
Iodine solution is prepared using 0.3g of Iodine and
2.5g of Potassium Nitrate
1.5g of Potassium Permagnate
0.5g of Sodium Iodide
1.5g of Potassium Iodide
- False
- True
Leaves that consist of both green and non-green parts are called variegated leaves.
True
False
- brown
- blue black
- sunlight
- chlorophyll
Presence of starch in a substance can be detected by ___.
vitamin
iodine solution
sulphur solution
calcium powder
On treatment with iodine, the presence of starch is confirmed by the appearance of:
Blue-black colour
Blue colour
Red colour
Pink colour
- Boil in spirit
- Boil in water
- Blueāblack color
- Perform iodine test
- Placed in hot water