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BIOLOGY

JAMB 2008 - Question 26

Biology 2008 JAMB Past Questions - Question 26: The part labelled I represents the

use the diagram below to answer the questions 26 and 27

The part labelled I represents the

A: stationary phase

B: lag phase

C: log phase

D: steady phase.

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Correct Answer

Explanation

Fig.I is the lag phase with a period of slow growth because only few cells arepresent in the environment. Figures II and III are the log phase marking the period of rapid growth because many cells are involved. The rapid growth continues until it readied it's maximum (i.e. Under optimal environmental resistence).Fig. IV is the stationary phase when there is no further increase in the number of cells because the carrying capacity of the environment has been reached.