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Question
Assertion :In most biological systems, the initial growth is slow (lag phase). Reason: With limited nutrient supply, the growth slows down, leading to a stationary phase.
Assertion :In most biological systems, the initial growth is slow (lag phase). Reason: With limited nutrient supply, the growth slows down, leading to a stationary phase.
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Solution
The correct option is B Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
The growth rate is termed as the increase in growth per unit time. The rate of growth of an organism is not always uniform during its lifespan. Sometimes it is slow and at other times rapid.There are three phases of growth:(i) Lag Phase- This is the initial phase of growth where the rate of growth is very slow.(ii) Log or Exponential Phase- Rate of growth rapidly increases during this phase.(iii) Stationary Phase- The rate of growth starts decreasing due to limited nutrient supply and finally.So, the answer is B.
The growth rate is termed as the increase in growth per unit time. The rate of growth of an organism is not always uniform during its lifespan. Sometimes it is slow and at other times rapid.
There are three phases of growth:
(i) Lag Phase- This is the initial phase of growth where the rate of growth is very slow.
(ii) Log or Exponential Phase- Rate of growth rapidly increases during this phase.
(iii) Stationary Phase- The rate of growth starts decreasing due to limited nutrient supply and finally.
So, the answer is B.
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