Two intracellular molecules, x and y, are both normally synthesized at a constant rate of 1000 molecules per second per cell. molecule x is broken down slowly – each molecule of x survives on average for 100 seconds. molecule y is broken down 10 times faster – each molecule of y survives on average for 10 seconds. a) calculate how many molecules of x and y the cell contains at any time? and what if the rates of synthesis of both x and y are suddenly increased tenfold to 10,000 molecules per second per cell in response to a signaling cascade, without any changes in respective degradation rates, how many molecules of x and y will there be after one second?