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प्रश्न
The figure below represents an experiment performed to demonstrate a particular aspect of photosynthesis. The apparatus was kept in sunlight for almost the whole day. The numeral ‘1’ represents a certain condition inside the flask and the numeral ‘2’ represents a chemical responsible for this condition.
(i) What is the object of the experiment?
(ii) What is the special condition inside the flask?
(iii) What is the chemical substance numbered ‘2’?
(iv) In what way will the three leaves (A, B, and C) differ at the end of the experiment, when tested with iodine solution?
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उत्तर
(i) The object of this experiment is to show that CO2 is necessary for photosynthesis.
(ii) The special condition inside the flask is that there is no CO2 in the air as it has been absorbed by the KOH.
(iii) KOH or NaOH pellets.
(iv) Leaf A will be yellowish-white. Leaf B and Leaf C will turn blue-black.
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संबंधित प्रश्न
A potted plant with variegated leaves was taken in order to prove a factor necessary for photosynthesis. The potted plant was kept in the dark for 24 hours and then placed in bright sunlight for a few hours. Observe the diagrams and answer the questions:
- What aspect of photosynthesis is being tested in the above diagram?
- Represent the process of photosynthesis in the form of a balanced equation.
- Why was the plant kept in the dark before beginning the experiment?
- What will be the result of the starch test performed on Leaf ‘A’ shown in the diagram? Give an example of a plant with variegated leaves
- Draw a neat labelled diagram of a chloroplast.
Choose the correct answer:
A cell that lacks chloroplast does not ______________
Stroma is ground substance in ______.
The figure given below represents an experiment to demonstrate a particular aspect of photosynthesis. The alphabet ‘A’ represents a certain condition inside the flask.
(i) What is the aim of the experiment?
(ii) Identify the special condition inside the flask.
(iii) Name an alternative chemical that can be used instead of KOH.
(iv) In what manner do the leaves 1 and 2 differ at the end of the starch test?
Explain the term Carbon cycle.
Give technical term:
Name the structure where photophosphorylation takes place.
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
Photosynthesis results in loss of dry weight of the plant.
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
All the starch produced in a leaf remains stored in it for 2-3 weeks before it is used by other parts of a plant.
The colour of VIBGYOR spectrum, which is reflected by chlorophyll, is ______.
Define the following term:
Thylakoids
