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प्रश्न
Photosynthesis converts energy X into energy Y.
- What are X and Y?
- Green plants are autotrophic in their mode of nutrition. Why?
उत्तर
- X is light energy. Y is chemical energy. During photosynthesis, the light energy is converted into chemical energy.
- Green plants are autotrophic in their mode of nutrition because they prepare their food, through a process called photosynthesis by using water, carbon dioxide, chlorophyll and sunlight.
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संबंधित प्रश्न
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.
(i) What aspect of photosynthesis was being tested?
(ii) Why was the plant placed in the dark before beginning the experiment?
(iii) During the starch test, why was the leaf
(1) boiled in water
(2) boiled in methylated spirit
(iv) Write a balanced chemical equation to represent the process of photosynthesis.
(v) Draw a neat diagram of a chloroplast and label its parts.
Name the following:
Three organisms that cannot prepare their own food by photosynthesis.
Mention one difference between the following on the basis of what is given in bracket.
Producers and consumers (mode of nutrition)
Explain the term Phosphorylation.
Choose the Odd One Out
Choose the correct option.
For fixing one molecule of CO2 in Calvin cycle _______ are required.
Name the plant part
- Which bends in the direction of gravity but away from the light.
- Which bends towards light but away from the force of gravity.
Oxygen is used for the synthesis of protein and fertilizers.
Give an example for micronutrients.
Distinguish between the following pairs on the basis of the word indicated in the bracket ( ).
Producers and Consumers (organisms)
