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प्रश्न
Fill in the blank:
______ is the process which replenishes the atmospheric oxygen which the animal life consumes in respiration.
उत्तर
Photosynthesis is the process which replenishes the atmospheric oxygen which the animal life consumes in respiration.
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संबंधित प्रश्न
Choose the correct answer:
In a typical leaf, photosynthesis occurs mainly in ___________
The rate of photosynthesis is not affected by
The specific function of light energy in the process of photosynthesis is to
Name the following:
The organisms that can be called "natural purifiers" of the air.
Mention one difference between the following on the basis of what is given in bracket.
Respiration and photosynthesis (gas released)
Identify the false statements and rewrite them correctly by changing the first or last word only.
Algae are autotrophs.
Complete the following food chains by writing the names of appropriate organisms in the blanks:
______ → Mouse ______ → Peacock
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.
Why was the plant kept in the dark before the experiment?
Write an experiment to demonstrate that CO2 is necessary for photosynthesis.
Respiration is said to be the reversal of photosynthesis.
The figure below represents the vertical section of a leaf:
(i) Name the parts 1 to 5.
(ii) How many veins have been shown?
(iii) State the functions of parts 4 and 5.
Explain the term Phosphorylation.
Complete the following sentence with appropriate word:
4OH ——> _____ + O2
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
KOH absorbs CO2.
Choose the correct option.
The sequential order in electron transport from PSII to PSI of photosynthesis is ______.
What will happen if we remove the fish from the aquarium and keep it (with green plants) in a dark place?
Why should the light-dependent reaction occur before the light-independent reaction?
Name the minute openings seen on the lower surface of the leaf.
Study the pictures below and then complete the table by putting a plus (+) if the shoot or root grows towards the stimulus and a minus (-) if it grows away from it.
| Stimulus | Light | Gravity |
| Shoot | + | - |
| Root | ? | + |
Label the diagram with the raw materials and products of photosynthesis.
