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प्रश्न
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?
( iv) How many leaf veins have been shown in this section?
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उत्तर
(i) 1 - Upper Epidermis; 2 - Palisade layer / chloroplast; 3 - Xylem; 4 - Phloem; 5 - Guard cell
(ii) The two arrows show the release of oxygen and water vapours during the daytime and carbon dioxide and very less amount of oxygen is released during the night.
(iii) Yes, one more arrow can be added to show the absorption of carbon dioxide by the leaf.
(iv) One vein has been shown in this section.
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संबंधित प्रश्न
Give one example of An aquatic plant used in the laboratory to demonstrate O2 liberation during photosynthesis
Define the following:
Organic food
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?
Name the following:
The products that are formed as a result of photosynthesis.
The following statement is about photosynthesis in a green plant. Write whether it is True or False.
Photosynthesis results in a gain in dry weight.
Write the functional activity of the following structure:
Thylakoids
Fill in the blank by rearranging the letter in the bracket.
During photosynthesis plants releases _________ (egxyno).
State whether true or false. If false, correct the statement.
Plants lose water when the stomata on leaves are closed.
Plants inhale and exhale continuously through the ______.
Given below are groups of terms. The first pair indicates the relationship between the two terms. Complete the second pair accordingly.
Producers : Autotrophs : : Consumers : ______
