When a cell is actively growing, the arg operon is , and arginine is .

The correct answer is - on, actively synthesize.

Explanation:

The arg operon is a negative regulator that releases or regulates the production of arginine in only the presence of arginine. Attaching the arginine to the arginine repressor protein causes the repressor to bind to the operator sequence.

When a cell is growing actively this operon is on and the synthesis of arginine in this cell is continuous. Arginine induces a conformational change in the protein structure.

explanation:

the universal gravitation equation. since the gravitational force is directly proportional to the mass of both interacting objects, more massive objects will attract each other with a greater gravitational force. if the mass of one of the objects is doubled, then the force of gravity between them is doubled.