Question

In a synthetic medium containing glucose and lactose, the growth curve of
e. Coli will be

Answer 1

Answer:

Answr is given below....

Explanation:

Growth of Escherichia coli in media containing

two carbon sources at concentrations insufficient

to support full growth is often diphasic, depend-

ing on the specific carbon sources supplied; the

phenomenon has been termed diauxie. When

lactose is supplied, the presence of either glucose

or gluconate gives rise to diauxie.

Answer 2

coli first grows rapidly on glucose, and when glucose runs out shifts to grow more slowly on lactose or other sugars1. Glucose prevents the use of other carbon sources, a phenomena termed carbon catabolic repression (CCR)2.