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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.
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उत्तर
- To show that chlorophyll is necessary for photosynthesis.
- \[\ce{6CO2 + 12H2O->[Light energy][Chlorophyll] C6H12O6 + 6H2O + 6O2↑}\]
- The plant is placed in the dark before beginning the experiment to destarch the plant.
- The pale yellow region turns golden brown, and the green region turns bluish or black/deep blue. An example of a plant with variegated leaves is the Oxalis species.
- Chloroplast
APPEARS IN
संबंधित प्रश्न
Fill in the blank:
Quantasome is the basic unit of ______.
Choose the correct answer:
A cell that lacks chloroplast does not ______________
Name the following:
The part of chloroplast where the dark reaction of photosynthesis takes place.
State one important function of chloroplasts.
(i) Identify the above diagram.
(ii) Label the guidelines 1-3.
(iii) Name the phenomenon which takes place in the above diagram.
(iv) Define the phenomenon.
(v) What is the importance of the above phenomenon?
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?
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
The process of photosynthesis takes place in the dark.
The colour of VIBGYOR spectrum, which is reflected by chlorophyll, is ______.
Define the following term:
Thylakoids
Define the following term:
Chloroplast
