Question 39

Releasing

In the context of the extract, 'emitting' refers to the heart's ability to release electric currents in waves. This aligns directly with the definition of 'releasing' as it indicates the act of sending out or discharging something.

A) Repelling

'Repelling' implies pushing something away or resisting. This definition does not fit the context of the word 'emitting' in the extract since the heart is not pushing away electric currents but rather sending them out.

B) Releasing

'Releasing' accurately captures the essence of 'emitting' in the extract, where the heart is described as discharging electric currents. This term conveys the action of allowing something to flow out, which is precisely what is taking place in the electrical activity of the heart.

C) Closing

'Closing' indicates the action of shutting or sealing something. This definition is contrary to the meaning of 'emitting,' as it suggests a cessation of activity rather than the active process of sending out electric currents.

D) Charging

'Charging' refers to the process of storing electrical energy or increasing voltage. While it relates to electricity, it does not accurately describe the action of 'emitting' in the context of the heart's function, which is about the release of electric currents rather than accumulating them.

Conclusion

The correct interpretation of 'emitting' as 'releasing' is clearly supported by the extract, which describes the heart's function in generating and discharging electric currents. Other options fail to capture the active nature of this process, either suggesting resistance, cessation, or accumulation rather than the crucial act of release that characterizes the heart's electrical activity.