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प्रश्न
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उत्तर
Difference between photosynthesis and respiration:
| Photosynthesis | Respiration |
| ( ii) Photosynthesis occurs only in cells containing chlorophyll in the presence of sunlight. | ( i) Respiration is the process in which oxygen is absorbed and energy and carbon dioxide is released. |
| (ii) Photosynthesis occurs only in cells containing chlorophyll in the presence of sunlight. | ( ii) Respiration is a process which occurs at all times in all living cells. |
| (iii) It is an anabolic orocess. | (iii) It is a catabolic orocess. |
| (iv) It results in a gain in dry mass. | (iv) It results in a loss in dry mass. |
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संबंधित प्रश्न
The diagram below shows two test-tubes A and B. Test-tube A contains a green water plant. Test-tube B contains both a green water plant and a snail. Both testtubes are kept in sunlight. Answer the questions that follow:
(i) Name the physiological process that releases the bubbles of oxygen.
(ii) Explain the physiological process as mentioned above in Q2 (a)(i).
(iii) What is the purpose of keeping a snail in test-tube ‘B’?
(iv) Why does test-tube ‘B’ have more bubbles of oxygen?
(v) Given an example of a water plant that can be used in the above process.
(vi) Write the overall chemical equation for the above process.
Expand the following biological abbreviations :
ATP
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?
Complete the following by filling in the blanks numbered 1 to 10 with the appropriate word/term:
Photosynthesis involves light reaction and dark reaction. During light reaction, the chlorophyll present in the (1) ______ gets activated by absorbing light energy. This energy splits (2) ______ molecules to (3) ______ and oxygen and releases two electrons. This process is called (4) ______. The (5) ______ ions are picked up by NADP to form (6) ______. The ADP is converted to (7) ______. This process is called (8) ______. During the dark phase, the compound produced at the end of the light reaction reacts with carbon dioxide to form (9) ______. This product is converted to starch. The process is called (10) ______.
Name the following:
The organisms that can be called "natural purifiers" of the air.
Complete the following food chain by writing the names of appropriate organisms in the blanks:
→ __________ → __________ → Hen → Man
Give technical term:
What does ATP abbreviate for?
Complete the following sentence with appropriate word:
A dark reaction is a __________ reaction.
Choose the Correct Answer:
Compensation point means the condition:
The source of O2 liberated in photosynthesis is ______.
