during the absolute refractory period a supramaximal stimulus can bring the cell to threshold

true or false

Absolutely not. Look at your definition of absolute refractory period.

I hope this helps. Thanks for asking.

False.

During the absolute refractory period, a cell is unable to generate another action potential, regardless of the strength of the stimulus applied. This is because the voltage-gated sodium channels responsible for initiating an action potential are inactivated and cannot be opened. Therefore, the cell is not able to reach the threshold and fire another action potential until the absolute refractory period is over.

To verify this, you can review the concept of the absolute refractory period in the context of the action potential and voltage-gated ion channels, particularly the inactivated state of sodium channels. Additionally, studying experimental evidence showing that no action potential can be generated during this period would support the statement that a supramaximal stimulus cannot bring the cell to threshold.