Question

Describe the logistic population growth curve.

Answer 1

The logistic populace boom curve is commonly found in yeast cells which might be grown below laboratory conditions. It consists of five levels: the lag section, nice acceleration section, exponential segment, bad acceleration segment, and stationary section.

(a) Lag phase: first of all, the populace of the yeast mobile could be very small. this is because of the restricted useful resource present inside the habitat.

(b) tremendous acceleration segment: all through this segment, the yeast mobile adapts to the brand new environment and starts growing its populace. but, at the beginning of this segment, the growth of the cell is very confined.

(c) Exponential segment: at some stage in this phase, the populace of the yeast cell increases unexpectedly because of speedy increase. The populace grows exponentially because of the supply of enough food sources, consistent surroundings, and the absence of any interspecific opposition. As a end result, the curve rises steeply upwards.

(d) terrible acceleration section: during this phase, the environmental resistance increases and the boom fee of the population decreases. This occurs due to an expanded competition most of the yeast cells for food and refuge.

(e) stationary phase: throughout this segment, the populace becomes solid. The quantity of cells produced in a populace equals the variety of cells that die. additionally, the population of the species is said to have reached nature’s carrying-capacity in its habitat. A Verhulst−pearl logistic curve is also known as an S-formed growth curve.