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Question
Write the functional activity of the following structure:
Thylakoids
Solution
Thylakoids: Help in photosynthesis.
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RELATED QUESTIONS
Answer the following:
Mention two significant advantages of photosynthesis to the living world as a whole.
The figure given below represents the vertical section of a leaf.
( i) Name the parts labeled 1 to 5.
( ii ) What do the two arrows (dotted and solid) indicate in the daytime and at night?
( iii) Could you add one more arrow in the figure? If yes, what for?
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Mention any two points in which photosynthesis and respiration in plants are opposite to each other.
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
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(v ) What will happen if the apparatus is kept in dark?
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Photosynthesis results in a gain in dry weight.
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Algae are autotrophs.
A candidate studied the importance of certain factors in photosynthesis. He took a potted plant and kept in the dark for over 24 hours. In the early hours of the next morning, he covered one of the leaves with black paper in the centre only. Then he placed the plant in sunlight for a few hours and tested the leaf which was covered with black paper for starch.
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| (i) | Grana | (a) | Decomposers |
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| (xi) | Cells in the leaf | (k) | By-products. |
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- After the starch test, what will be the colour of the yellow and green parts of the leaf? Give reasons to support your answer.
Given below are groups of terms. The first pair indicates the relationship between the two terms. Complete the second pair accordingly.
Producers : Autotrophs : : Consumers : ______
Distinguish between the following pairs on the basis of the word indicated in the bracket ( ).
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