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प्रश्न
A candidate studied the importance of certain factors in photosynthesis. He took a potted plant and kept in the dark for over 24 hours. In the early hours of the next morning, he covered one of the leaves with black paper in the centre only. Then he placed the plant in sunlight for a few hours and tested the leaf which was covered with black paper for starch.
What aspect of photosynthesis was being investigated?
उत्तर
The student wanted to show that sunlight is necessary for photosynthesis. / The role of sunlight in photosynthesis is being investigated.
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संबंधित प्रश्न
The diagrams given below represent the relationship between a mouse and a physiological process that occurs in green plants. Study the diagrams and answer the questions that follow
(i) Name the physiological process occurring in the green plant that has kept the mouse alive.
(ii) Explain the physiological process mentioned above.
(iii) Why did the mouse die in bell jar B?
(iv) What is the significance of the process as stated in (i) for life on earth?
(v) Represent the above mentioned physiological process in the form of a chemical equation.
Give appropriate biological/technical terms for the following:
An apparatus that measures the rate of water uptake in a cut shoot due to transpiration.
Answer the following:
Give the overall chemical equation of photosynthesis in green plants.
Name the following:
The principle site in a green leaf for photosynthesis.
Fill in the blank:
Xanthophyll is ______ coloured pigment.
Which one chemical reaction occurs during photosynthesis?
A plant is kept in a dark cupboard for 48 hours before conducting any experiment on photosynthesis in order to
Name the following:
The organisms that can be called "natural purifiers" of the air.
Complete the following food chains by writing the names of appropriate organisms in the blanks:
Grass → ______ → Snake → ______
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 Phloem tissue in the leaf veins.
Give some adaptations in green leaf photosynthesis.
Name the following:
The process by which plants produce their food.
Give technical term:
The main reaction which means the breaking up of water molecules through light.
Choose the Correct Answer:
Which one of the following would not be a limiting factor for photosynthesis?
______ is positively hydrotropic as well as positively geotropic.
Oxygen is produced at what point during photosynthesis?
Only green plants have the unique capacity to release ______ into the atmosphere.
The raw materials for photosynthesis are ______ and ______.
