NEETBotanyPlant - Growth and Development
What type of curve is obtained when the parameter of growth is plotted against time in geometrical growth?
Options
- ALinear curve
- BParabolic curve
- CExponential curve
- DSigmoid curve
Correct answer
D. Sigmoid curve
Step-by-step solution
In most systems, the initial growth is slow (lag phase), and it increases rapidly thereafter – at an exponential rate (log or exponential phase). Here, both the progeny cells following mitotic cell division retain the ability to divide and continue to do so.However, with limited nutrient supply, the growth slows down leading to a stationary phase. If we plot the parameter of growth against time, we get a typical sigmoid or S-curve.