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प्रश्न
Describe an experiment to prove that sunlight is necessary for photosynthesis.
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उत्तर
Experiment to prove that sunlight is necessary for photosynthesis:
a. A potted plant is kept in the dark for two days to destarch the leaves.
b. A part of a leaf is covered with a black paper by clip.
c. Now the plant is kept in the light for few hours.
d. The leaf is plucked and is boiled in water and is then decolourized with
alcohol.
e. The portion of leaf which received light turns blue with iodine because
photosynthesis took place in that part of leaf.
f. The part of leaf which was covered with black paper remains colourless
because photosynthesis could not take place in the absence of sunlight.
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संबंधित प्रश्न
Mention two ways in which photosynthesis is useful to life.
Are the following statement true or false? Give a reason in support of your answer.
The rate of photosynthesis continues to rise as long as the intensity of light rises.
"Oxygen is a waste product of photosynthesis." Comment.
The figure given below is for performing an experiment on photosynthesis.
Answer the following:
(i) What is the aim of this experiment?
(ii) Describe an experiment to show that light is necessary for photosynthesis.
(iii) What do you conclude from this experiment?
(iv) What is the role of light in photosynthesis?
Name the following:
The immediate product of photosynthesis.
Choose the Odd One Out
Choose the correct option.
In presence of high concentration of oxygen, RuBP carboxylase converts RuBP to ______.
Which one of the following is a primary producer?
State whether true or false. If false, correct the statement.
When the weather is hot, water evaporates lesser which is due to opening of stomata.
Draw the structure of the stomata and label the parts.
