Biology
State any four differences between photosynthesis and respiration.
Photosynthesis
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Answer
| Photosynthesis | Respiration |
|---|---|
| Photosynthesis utilizes carbon dioxide and water in the presence of light to produce glucose and oxygen. | Respiration uses oxygen and glucose to power the activities of the cell. |
| Photosynthesis results in gain of dry weight of the plants. | Respiration results in loss of dry weight of the plants. |
| The raw materials for the photosynthesis are water, carbon dioxide and sunlight. | The raw material for respiration is glucose. |
| Photosynthesis occurs in plants and some photosynthetic bacteria. | Respiration occurs in all living organisms. |
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Related Questions
Are the following statements true or false? Give reason in support of your answer.
(a) The rate of photosynthesis continues to rise as long as the intensity of light rises.
(b) The outside atmospheric temperature has no effect on the rate of photosynthesis.
(c) If you immerse a leaf intact on the plant in ice cold water, it will continue to photosynthesise in bright sunshine.
(d) Destarching of the leaves of a potted plant can occur only at night.
(e) If a plant is kept in bright light all the 24 hours for a few days, the dark reaction (biosynthetic phase) will fail to occur.
(f) Photosynthesis is considered as a process supporting all life on earth.
Given below are five terms. Rewrite the terms in the correct order so as to be in logical sequence with regard to photosynthesis: (i) water molecules, (ii) oxygen, (iii) grana, (iv) hydrogen and hydroxyl ions, (v) photons.
Complete the following food chains by writing the names of appropriate organisms in the blanks:
(i) Grass → ………… → Snake → ……………
(ii) ……….. → Mouse …………… → Peacock
Name these :
(a) Two aquatic plants which can be used for the experiment of photosynthesis.
(b) Two plants having variegated leaves.
(c) Two raw materials for photosynthesis.
(d) Four essentials for photosynthesis.
(e) Two main phases of photosynthesis.