Question
Biology Question on Bacteria, Archea, Virus, and their broad classification
The lactose present in the growth medium of bacteria is transported to the cell by the action of
A
Beta-galactosidase
B
Acetylase
C
Permease
D
Polymerase
Answer
Permease
Explanation
Solution
Permease is a membrane-bound protein that facilitates the transport of lactose into bacterial cells. It is part of the lactose operon system in bacteria, which also includes beta-galactosidase (which breaks down lactose inside the cell) and transacetylase. Acetylase and polymerase are involved in different metabolic processes.