1. Transhydrogenase is an enzyme that plays a crucial role in energy metabolism.

转氢酶是一种在能量代谢中起着重要作用的酶。

2. The activity of transhydrogenase can be measured by monitoring the transfer of hydrogen ions between different substrates.

通过监测不同底物之间氢离子的转移来测量转氢酶的活性。