Advertisements
Advertisements
प्रश्न
Which of the following is used to remove chlorophyll from the leaves?
पर्याय
Iodine solution
Methylated spirit
Potassium hydroxide
Soda lime
Advertisements
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.
APPEARS IN
संबंधित प्रश्न
Fill in the blank:
Land plants obtain their carbon dioxide from the ______.
Name the following:
The source of carbon dioxide for aquatic plants.
The chemical substance used to test the presence of starch in the cell of a leaf is ______.
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?
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.
Why Is Photosynthesis Important in Nature?
Name the following:
The site of light reaction in the cell of a leaf.
Complete the following sentence with appropriate word:
A light-induced reaction which leads to the splitting of water is _____ of water.
Complete the following sentence with appropriate word:
________molecules of chlorophyll make one quantasome.
Given below is the diagram of an experimental set-up (final stage). Study the same and answer the following questions:
- What is the main aim of the experiment?
- Oxygen gas shown in the experiment is released from which of the raw materials?
- How would you confirm the presence of oxygen gas?
- Name the chemical substance which can be added in water to enhance the process/rate of release of oxygen gas.
- Draw a neat and labelled diagram of the same experiment for its initial stage.
