Final answer:
Angiotensin-converting enzyme (ACE) is an example of an enzyme located in the lung capillary membrane that acts on material in the blood. ACE catalyzes the reaction of inactive angiotensin I into active angiotensin II.
Step-by-step explanation:
An example of an enzyme located in the lung capillary membrane that acts on material in the blood is angiotensin-converting enzyme (ACE).
ACE is produced by the lungs and it catalyzes the reaction of inactive angiotensin I into active angiotensin II. This enzyme plays a crucial role in regulating blood pressure and fluid balance.