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प्रश्न
Complete the following statement by choosing the correct alternative given below :
All animals would die on the earth if there was no ______.
पर्याय
chlorophyll
haemoglobin
penicillin
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उत्तर
All animals would die on the earth if there was no Chlorophyll.
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संबंधित प्रश्न
The diagram is set up to demonstrate an experiment. Pond weed was placed in five water-filled tubes. The experiment was set up as shown in the diagram. The tubes were then left for 24 hours. Write the correct answer out of the five available choices:
(i) In which tube would you except to find the plant with the least amount of starch?
(a ) 1 (b) 2 (c) 3 (d) 4 (e ) 5
(ii) The tube in which most oxygen would be found is
(a ) 1 (b) 2 (c) 3 (d) 4 (e ) 5
(iii) The tube in which least carbon dioxide would be found is
(a ) 1 (b) 2 (c) 3 (d) 4 (e ) 5
(iv) The tube in which the plant would survive for the shortest length of time is
(a ) 1 (b) 2 (c) 3 (d) 4 (e) 5

Given alongside is the diagram of an experimental set-up:

Will it work satisfactorily? Given reason.
A potted plant was taken in order to prove a factor necessary for photosynthesis. The potted plant was kept in the dark for 24 hours. One of the leaves was covered with black paper in the centre. The potted plant was then placed in sunlight for a few hours.
Draw a neat diagram of a chloroplast and label its parts.
Chlorophyll is necessary for photosynthesis.
ATP is needed for the dark reaction.
Give technical term:
Name only one plant, you are familiar with which has no chlorophyll.
Choose the correct answer:
Chlorophyll is present
Name two aquatic plants which can be used for the experiment of photosynthesis.
Give reasons/explain:
During the starch test, the leaf is boiled in water.
