Which one of the following enzymes is required for the entry of lactose into the $E. coli$ cell?

  • A
    Lactase
  • B
    Galactosidase
  • C
    Permease
  • D
    Transacetylase

Explore More

Similar Questions

When do bacteria $NOT$ produce $\beta$-galactosidase?

Jacob and Monod studied lactose metabolism in $E. coli$ and proposed the operon concept,which is applicable for:

The lac operon consists of

Define an operon,give an example,and explain an inducible operon.

An $E. coli$ cell with a mutated $z$ gene of the $lac$ operon cannot grow in a medium containing only lactose as the source of energy because:

Vedclass Products

For Students

Vedclass Test Series

Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.

Start Free Trial
For Teachers

Exam Paper Generator

Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.

Try Free
For Institutes

Online Exam Module

Live online exams with unlimited students, 360° analytics & white-label branding.

See Demo