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Question
Explain the mechanism of photosynthesis.
Solution
In green plants, stomatal pores of the leaves absorb carbon dioxide from the air. Chlorophyll present in the plant cells absorbs sunlight and root hair absorbs water from the soil. All these reach chlorophyll, which utilises the Sun’s energy to combine water and carbon dioxide to form glucose and oxygen. In this way, green plants convert solar energy into chemical energy by forming carbohydrates.
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RELATED QUESTIONS
Which substance is used to remove chlorophyll from a green leaf during photosynthesis experiments?
(a) Name the pigment in leaves which absorbs sunlight energy.
(b) What is the colour of this pigment?
Name the organelle of plant cells in which photosynthesis occurs.
Name the food which gets stored in plant leaves.
State the various steps involved in the process of photosynthesis.
Write a chemical equation to show the process of photosynthesis in plants.
Name the various factors which affect the rate of photosynthesis in plants.
The opening and closing of the stomatal pores depends upon:
(a) oxygen
(b) water in guard cells
(c) temperature
(d) concentration of CO2 in stomata
Opening and closing of stomatal pore depends on ______.
Match Group (A) with Group (B)
| Group A | Group B |
| (a) Autotrophic nutrition | (i) Leech |
| (b) Heterotrophic nutrition | (ii) Paramecium |
| (c) Parasitic nutrition | (iii) Deer |
| (d) Digestion in food vacuoles | (iv) Green plant |
