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प्रश्न
Colonies of yeast fail to multiply in water, but multiply in sugar solution. Give one reason for this.
उत्तर
An organism requires energy to perform various life processes such as nutrition, respiration, etc. so as to sustain its life and also to reproduce. Since water lacks source of energy, colonies of yeast fail to multiply in it whereas sugar solution provides source of energy, colonies of yeast multiply in it.
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