NEET2015BotanyPlant - Growth and DevelopmentActual
Typical growth curve in plants is:
Options
- ASigmoid
- BLinear
- CStair-steps shaped
- DParabolic
Correct answer
A. Sigmoid
Step-by-step solution
The growth pattern of cells, organisms is uniform under favourable conditions & a typical growth curve in plants is sigmoidal. Thus following phases of growth are recognized. (i) Lag phase: In the lag period the growth is slow. It represents the formative or cell division phase. (ii) Log phase: Also called as exponential phase. During this phase, growth is maximum & most rapid. It represents the cell elongation phase. (iii) Steady or stationary phase: It represents the cell maturation phase. Time taken in growth ph