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Academic session 2026-27, Chapter 11 in the current curriculum.
Welcome to the NCERT Solutions for Class 12 Biology - Chapter Organisms and Population. This page offers a step-by-step solution to the specific question from Exercise 0, Question 5:
A population of Paramoecium caudatum was grown in a culture medium. After 5 days the culture medium became overcrowed with Paramoeium and had depleted nutrients. What will happen to the population and what type of growth curve will the population attain? Draw the growth curve.
. With detailed answers and explanations for each chapter, students can strengthen their understanding and prepare confidently for exams. Ideal for CBSE and other board students, this resource will simplify your study experience.A population of Paramoecium caudatum was grown in a culture medium. After 5 days the culture medium became overcrowed with Paramoeium and had depleted nutrients. What will happen to the population and what type of growth curve will the population attain? Draw the growth curve.
Firstly, after the lag phase, the population will grow in an exponential manner where the nutrients and space will be abundant.
When the food sources get depleted, the population density starts decreasing and ends in an asymptote phase, then the population density reaches the carrying capacity (K). Population shows logistic growth curve and S- shaped growth curve. The S- shaped curve is also known as Verhulst- Pearl Logistic curve, which is represented by the following equation:

Where, N is the population size
r is the intrinsic rate of increase;
dN/dt is the rate of change in population numbers over the time
K is the carrying capacity.
Diagram of S- shaped growth curve:
NCERT questions are designed to test your understanding of the concepts and theories discussed in the chapter. Here are some tips to help you answer NCERT questions effectively:
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Welcome to the NCERT Solutions for Class 12 Biology - Chapter . This page offers a step-by-step solution to the specific question from Excercise 0 , Question 5: A population of Paramoecium caudatum was grown in a culture medium. After 5 days the culture medium ....
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