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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. |
संबंधित प्रश्न
Cytoplasm : Cytokinesis :: Nucleus : ______
Briefly explain the following terms: Photophosphorylation
Complete the following paragraph by filling in the blank (1) to (5) with appropriate words:
To test a leaf for starch, the leaf is boiled in water to (1) _________. It is then boiled in Methylated spirit to (2) ________. The leaf is dipped in warm water to soften it. It is placed in a petri dish, and (3) _____ solution is added. The region of the leaf which contains starch, turns (4) ________and the region while does not contain starch, turns (5) __________.
Define the following:
Organic food
Name the following:
The principle site in a green leaf for photosynthesis.
Fill in the blank:
Xanthophyll is ______ coloured pigment.
Match the terms of column I with those in column II:
| Column I | Column II |
| (i) Stomata closed | (a) decomposers |
| (ii) Autotrophs | (b) light reaction |
| (iii) By-products of photosynthesis | (c) animals |
| (iv) Photolysis | (d) during night |
| (v) Bacteria and fungi | (e) green plants |
| ( f) oxygen |
Complete the following food chains by writing the names of appropriate organisms in the blanks:
Grass → ______ → Snake → ______
Photosynthesis is considered as a process supporting all life on earth.
Autotrophs use _____,______ and chlorophyll to prepare their own food.
