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प्रश्न
When a substrate is being metabolized, why does not all the energy that released in one step. It is released in multiple steps.What is the advantage of step-wise release?
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उत्तर
The complete combustion of glucose, which produces CO2 and H2O as end products, yields energy most of which is given out as heat.
C6H12O6 + 6O2 → 6CO2 + 6H2O + Energy
If this energy is to be useful to the cell, it should be able to utilise it to synthesise other molecules that the cell requires. The strategy that the plant cell uses is to catabolise the glucose molecule in such a way that not all the liberated energy goes out as heat. The key is to oxidise glucose not in one step but. in several small steps enabling some steps to be just large enough such that the energy released can be coupled to ATP synthesis.
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संबंधित प्रश्न
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One same common function is performed by?
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Energy currency of cell.
Name the following:
Oxidative breakdown of carbohydrates to release energy.
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An organism which respires throughout life anaerobically.
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_________ are the openings found on older stems.
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_____________ is a chemical which absorbs oxygen of the air.
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Lenticels _____________
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(b) C6H12O6 → ________ + 2 CO2 + 2 ATP
(i) Fill in the blank in each reaction.
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The following diagram refers to an apparatus which is used to demonstrate a physiological process:
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Every living cell of the plant
Name the following:
The process of living beings which is concerned with the release of energy for use in the body.
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A food stall owner was preparing dough for making bhaturas. He added a pinch of yeast and sugar to the dough and left it in a warm place. After few hours, the dough had risen. There was a sour smell too.
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