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प्रश्न
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.
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उत्तर
- To demonstrate that oxygen is generated during the process of photosynthesis.
- The emission of oxygen gas is a result of the interaction between carbon dioxide and water in the presence of sunlight.
- The bursting of flames from a splinter in close proximity to the test container proves the presence of oxygen.
- Sodium Bicarbonate
APPEARS IN
संबंधित प्रश्न
Name the following:
The main mineral constituent of chlorophyll.
Fill in the blank:
Land plants obtain their carbon dioxide from the ______.
The chemical substance used to test the presence of starch in the cell of a leaf is ______.
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 any one organism that could be shown at No .5
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.
Why was the plant placed in the dark before beginning the experiment?
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.
During the starch test, why was the leaf
(1) boiled in water
(2) boiled in methylated spirit
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?
Give reasons/explain:
During the starch test, the leaf is boiled in water.
