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Question
"Oxygen is a waste product of photosynthesis." Comment.
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Solution
Oxygen is released during photosynthesis. Some of this oxygen may be used in respiration in the leaf cells, but the major portion of it is not required and it diffuses out into the atmosphere through the stomata. However, in a sense, even this oxygen is not a waste because all organisms require it for their existence including the plants.
RELATED QUESTIONS
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:

- Name the physiological process occurring in the green plant that has kept the mouse alive.
- Explain the physiological process mentioned above.
- Why did the mouse die in bell jar B?
- What is the significance of the process as stated in (i) for life on earth?
- Represent the above mentioned physiological process in the form of a chemical equation.
Identify the odd one in each set : Transpiration, Photosynthesis, Phagocytosis, Guttation
Define the following:
Organic food
What is meant by photosynthesis? Why is it so important in nature?
The following statement is about photosynthesis in a green plant. Write whether it is True or False.
Photosynthesis stops at a temperature above 35°C.
How is the rate of photosynthesis affected when a green plant gets the green light?
Choose the Correct Answer:
Which would do maximum harm to a tree?
A plant is kept in a dark room for about 24 hours before conducting any experiment on photosynthesis in order to ______.
Arrange and rewrite the terms in the group in the correct order to be in a logical sequence beginning with the term that is underlined:
Snake, Rabbit, Cabbage, Hawk.
