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Question
What is meant by photosynthesis? Why is it so important in nature?
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Solution
Photosynthesis: It is an anabolic process by which plants manufacture
carbohydrates or food material with the help of water and carbon dioxide in the
presence of sunlight and chlorophyll.
It is an important process as:
a. It produces food directly or indirectly for all living organisms on earth.
b. It maintains balance between oxygen and carbon dioxide in the atmosphere.
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RELATED QUESTIONS
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.
- What aspect of photosynthesis was being tested?
- Why was the plant placed in the dark before beginning the experiment?
- During the starch test why was the leaf
- boiled in water
- boiled in methylated spirit
- Write a balanced chemical equation to represent the process of photosynthesis.
- Draw a neat diagram of a chloroplast and label its parts.
Differentiate between the following pairs on the basis of what is indicated in the brackets.
Leaf and Liver [form in which glucose is stored]
Define the following:
Plant pigments
The following statement is about photosynthesis in a green plant. Write whether it is True or False.
The raw materials for photosynthesis include water and carbon dioxide.
Choose the correct answer:
Photosynthesis is more active in ___________
Name the following:
The tissue that transports manufactured type of starch from leaves to all parts of the plants.
Complete the following food chain by writing the names of appropriate organisms in the blanks:
Grass → __________ → Snake → __________
Complete the following sentence with appropriate word:
One of the products of ______of water is oxygen.
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
Land plants obtain their CO2 from the atmosphere.
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.
