2007-03-17 19:16:24 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Biology
by only producing the enzyme when it is needed the cell is conserving energy
2007-03-17 23:43:28 · answer #1 · answered by ALM 6 · 0⤊ 1⤋
In E. coli, ?-galactosidase is produced by making use of activation of the lac operon, because of the fact the lacZ gene. it rather is barely produced whilst there is not any glucose and the micro organism desires to hydrolyse lactose as a source of power. So, is produced whilst needed.
2016-12-18 16:35:33 · answer #2 · answered by ? 4 · 0⤊ 0⤋
If lactose isn't present, the bacterium wouldn' t need to worry about trying to metabolize it (so, no enzyme).
2007-03-17 19:30:43 · answer #3 · answered by Silly me 4 · 0⤊ 0⤋
Because they are not utilizing galactose for their metabolism...DUH!
2007-03-17 19:18:53 · answer #4 · answered by nomo_homo_s 1 · 0⤊ 2⤋