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Questions
Write the overall chemical equation for photosynthesis.
Write a balanced chemical equation showing photo-synthesis in plants.
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Solution
\[\ce{\underset{dioxide}{\underset{Carbon}{6CO2}} + \underset{Water}{12H2O}->[Sunlight][Chlorophyll]\underset{Glucose}{C6H12O6} + \underset{Water}{6H2O} + \underset{Oxygen}{6O2}\uparrow}\]
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RELATED QUESTIONS
An experiment was set up as shown in the figure given below . The twig in the diagram was intact on the plant and it was as such in sunlight for a few hours .
(i) What is the aim of the above experiment ?
(ii) Why was potassium hydroxide placed inside the conical flask ?
(iii) What test would you perform on the leaf inside the flask?
(iv) What is the expected result of the above test ?
(v) Is it necessary to similarly test on outer leaf also ? Giva a reason .
Mention one difference between the following on the basis of what is given in bracket.
Chlorophyll and chloroplast (part of plant cell)
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Complete the following by filling the blanks 1 to 5 with appropriate words/terms/phrases:
To test the leaf for starch, the leaf is boiled in water to ______ (1). It is next boiled in methylated spirit to ______ (2). The leaf is placed in warm water to soften it. It is then placed in a dish and ______ (3) solution is added. The region which contains starch, turns ______ (4) and the region which does not contain starch, turns ______ (5)
Given alongside is the diagram of an experimental set-up:
What alteration (s) will you make in it for obtaining expected result?
The diagram below shows two test-tubes A and B. Test-tube A contains a green water plant. Test-tube B contains both a green water plant and a snail. Both test-tubes are kept in sunlight. Answer the questions that follow:
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Name the following:
The green colouring matter of the plants.
Name the following:
Light in which the maximum rate of photosynthesis takes place.
Complete the following sentence with appropriate word:
Carbon dioxide enters the leaf through _______.
Given below is the figure of an experimental set-up, showing a physiological act of the plants. Study and answer the following questions:
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