Which of the following is not an accurate completion of this sentence:

if enzymes were allowed to operate at a maximum rate at all times necessary products would not be made in some pathways.
cells would operate at maximum efficiency.
intermediates in a pathway would accumulate under some circumstances.
resources would be wasted.

cells would operate at maximum efficiency.

Explanation:

If enzymes were allowed to operate at a maximum rate at all times  it is not possible that the cells operation efficiency will be high because natural system of body have balance for everything i.e production and release of everything at correct time and proper amount. Enzymes are present in its inactive form when there is no need.if they are allowed to operate at maximum rate it will disturb the metabolic and other biological process of cells.