Advertisements
Advertisements
प्रश्न
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.
Advertisements
उत्तर
(i) Sunlight
(ii) To destarch the leaf.
(iii) (1) The leaf was kept in boiling water to kill the cells/ releases the starch grains.
(2) It is kept in methylated spirit to remove chlorophyll.
(iv) Iodine
(v}At the end of the starch test it is observed that the covered part of the leaf remains brown and the exposed part of the leaf remains blue-black.
(vi) \[\ce {6CO2 + 12H2O ->[Sunlight][Chlorophyll]C6H12O6 + 6O2 + 6H2O}\]
APPEARS IN
संबंधित प्रश्न
Mention the exact location of the following :
Thylakoids
Define the following:
Plant pigments
Name the following:
Three organisms that cannot prepare their own food by photosynthesis.
The following statement is about photosynthesis in a green plant. Write whether it is True or False.
Land plants obtain their carbon dioxide from the atmosphere.
Complete the following by filling in the blanks numbered 1 to 10 with the appropriate word/term:
Photosynthesis involves light reaction and dark reaction. During light reaction, the chlorophyll present in the (1) ______ gets activated by absorbing light energy. This energy splits (2) ______ molecules to (3) ______ and oxygen and releases two electrons. This process is called (4) ______. The (5) ______ ions are picked up by NADP to form (6) ______. The ADP is converted to (7) ______. This process is called (8) ______. During the dark phase, the compound produced at the end of the light reaction reacts with carbon dioxide to form (9) ______. This product is converted to starch. The process is called (10) ______.
Explain the term NADP.
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?
Complete the following sentence with appropriate word:
AIIP stands for ____________.
Mesophyll contains chlorophyll.
When iodine solution is added for testing starch, part of the leaf with ______ turns a blue-black color.
