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प्रश्न
Formalin, Iodine, DDT, Lime
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उत्तर
Odd Term – Lime
Formalin, iodine and DDT are chemical substances.
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संबंधित प्रश्न
the exact location of the Thylakoids
The diagram below shows two test-tubes A and B. Test-tube A contains a green water plant. Test-tube B contains both a green water plant and a snail. Both testtubes are kept in sunlight. Answer the questions that follow:
(i) Name the physiological process that releases the bubbles of oxygen.
(ii) Explain the physiological process as mentioned above in Q2 (a)(i).
(iii) What is the purpose of keeping a snail in test-tube ‘B’?
(iv) Why does test-tube ‘B’ have more bubbles of oxygen?
(v) Given an example of a water plant that can be used in the above process.
(vi) Write the overall chemical equation for the above process.
The process of conversion of ADP into ATP during photosynthesis.
The diagram alongside represents an experiment conducted to prove the importance of a factor in photosynthesis.
Study the same and then answer the questions that follow:
(i) Name the factor being studied in his experiment.
(ii) Why was the plant kept in a dark room before conducting the experiment?
(iii}Why was the experimental leaf then kept in
1. boiling water 2. methylated spirit?
(iv) Name the solution used to test for the presence of starch in the leaf.
(v) What will we observe in the experimental leaf at the end of the starch test?
(vi) Give a balanced chemical equation to represent the process of photosynthesis.
A candidate studied the importance of certain factors in photosynthesis. He took a potted plant and kept in the dark for over 24 hours. In the early hours of the next morning, he covered one of the leaves with black paper in the centre only. Then he placed the plant in sunlight for a few hours and tested the leaf which was covered with black paper for starch.
What aspect of photosynthesis was being investigated?
Give technical term:
Name the process which is responsible for the conversion of solar energy to chemical energy that is essential to sustain life on this earth?
Give technical term:
Which process is the ultimate source of energy for all living organisms?
Photosynthesis converts energy X into energy Y.
- What are X and Y?
- Green plants are autotrophic in their mode of nutrition. Why?
The source of O2 liberated in photosynthesis is ______.
The minerals like nitrogen, potassium, and phosphorus, which are required in substantial quantity by the plants are called ______.
