i mean that when there is lactose and glucose how is lac operon?!! and when there is lactose without glucose how is lac operon?!!
2007-04-20 18:31:10 · 3 answers · asked by budi guo 1 in Science & Mathematics ➔ Chemistry
Lactose binds to a transcription factor which activates the lac operon.
Glucose, however, inhibits the activation of the lac operon.
When they are together the lac operon is inhibited, so no production of the lac enzyme will occur, and the operon is turned off.
2007-04-20 18:58:34 · answer #1 · answered by yamaguchi 2 · 0⤊ 0⤋
carbohydrates are source of potential for the human physique(no longer in straight forward terms)at the same time with starch, glycogen, or cellulose, the trouble-free carbohydrate instruments are mentioned as monosaccharides, at the same time with glucose, galactose, and fructose.. Disaccharides are the least puzzling polysaccharides. they are composed of two monosaccharide instruments certain at the same time. LACTOSE IS A DISACCHARIDES COMPOSED by making use of: LACTOSE= GLUCOSE+GALACTOSE Lactose, IS A disaccharide composed of one galactose molecule and one glucose molecule, happens clearly in straight forward terms in milk. The systematic call for lactose is O-?-D-galactopyranosyl-(a million?4)-D-glucopyra...
2016-10-03 08:11:48 · answer #2 · answered by fogleman 4 · 0⤊ 0⤋
It catalyses.
2007-04-20 18:48:12 · answer #3 · answered by ag_iitkgp 7 · 0⤊ 0⤋