When is the lac operon most active?
a)when glucose levels are high and lactose is present
b)when glucose levels are low and lactose is absent
c)when glucose levels are low and lactose is present
d)when glucose levels are high and lactose is absent

Could someone me with number one you

Membrane vesicles containing an internal sodium chloride (nacl) concentration of 0.14 m are placed into separate beakers each containing a different solution. the first beaker contains 0.14 m sucrose, while the second beaker contains 0.14 m calcium chloride (cacl2). the temperature is 25°c. what is the solute potential inside the vesicles, expressed in units of mpa?

How are agricultural practices used today