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प्रश्न
The diagram given below represents an experiment to prove the importance of a factor in photosynthesis. Answer the questions that follow :
What will you observe in the experimental leaf after the starch test?
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उत्तर
The leaf turns blue black except in the covered region. As the region didnot receive light, photosynthesis did not occur. Hence no starch was formed there. The uncovered region received light and starch was formed there due to photosynthesis.
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संबंधित प्रश्न
Give one example of An aquatic plant used in the laboratory to demonstrate O2 liberation during photosynthesis
An experiment was set up as shown in the figure alongside. Look at the figure and answer the following questions:
( i) What is the objective of this experiment?
( ii ) Which plant is used in this experiment?
( iii ) Which gas is evolved in this process?
( iv ) What will happen to the rate of evolution of this gas if a pinch of sodium
bicarbonate is added?
(v ) What will happen if the apparatus is kept in dark?
If the rate of respiration becomes more than the rate of photosynthesis, plants will:
What is the importance of photosynthesis in the life of the following:
Non-green plants
All life on earth Would come to an end if there were no green plants.
Give technical term:
What is the percentage of CO2 in the air?
Choose the Correct Answer:
Which would do maximum harm to a tree?
Autotrophs use _____,______ and chlorophyll to prepare their own food.
Label the diagram with the raw materials and products of photosynthesis.
Assertion (A): All food chains begin with herbivores.
Reason (R): Green plants are heterotrophs.
