हिंदी

Which of the following is used to remove chlorophyll from the leaves?

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प्रश्न

Which of the following is used to remove chlorophyll from the leaves?

विकल्प

  • Iodine solution

  • Methylated spirit

  • Potassium hydroxide

  • Soda lime

MCQ
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उत्तर

Methylated spirit

Explanation:

Boil the leaf in methylated spirit over a water bath till it becomes pale-white due to the removal of chlorophyll.

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अध्याय 6: Photosynthesis - Review Questions [पृष्ठ ७९]

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सेलिना Concise Biology [English] Class 10 ICSE
अध्याय 6 Photosynthesis
Review Questions | Q A. 7. | पृष्ठ ७९

संबंधित प्रश्न

Describe fully one experiment with potted green plant to show that starch is not produced in the leaves when carbon dioxide is not available (diagrams essential)


A healthy oat seeding in a pot is transferred from light to any airy but completely dark room. How would it differ from its original condition in appearance after about a week? Explain the difference.


The chemical substance used to test the presence of starch in the cell of a leaf is ______.


Are the following statement true or false? Give a reason in support of your answer.

Destarching of the leaves of a potted plant can occur only at night.


How would you demonstrate that green plants release oxygen when exposed to light?


Photosynthesis in green plants is directly and indirectly dependent on so many plant structures. 

Explain briefly the role of the following structures in this process is Xylem tissue in the leaf veins


Given below is the representation of a certain phenomenon in nature. With four organisms 1-4.

Name the biological process which was the starting point of the whole chain.


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.

What aspect of photosynthesis was being tested?


Name the following:

Light in which the maximum rate of photosynthesis takes place.


Given below is the figure of an experimental set-up, showing a physiological act of the plants. Study and answer the following questions:

  1. What is the objective of this experiment?
  2. Name and define the process shown here.
  3. Why do we destarch the leaves before performing the experiment?
  4. How do we destarch the leaves?
  5. What will be the observation when we pour iodine solution over the bleached experimental leaf?
  6. Write a well-balanced equation for the above process.

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