The angiotensin-converting enzyme (ACE) converts angiotensin I almost instantly to which substance?
1. Angiotensin II
2. Aldosterone
3. Angiotensinogen
4. Renin
Correct Answer: 1
Rationale 1: ACE converts angiotensin I to angiotensin II. This happens almost immediately because ACE lies on the membranes of the blood vessels.
Rationale 2: ACE does not convert angiotensin I to aldosterone.
Rationale 3: ACE does not convert angiotensin I to angiotensinogen.
Rationale 4: ACE does not convert angiotensin I to renin.
Global Rationale: ACE converts angiotensin I to angiotensin II. This happens almost immediately because ACE lies on the membranes of the blood vessels. ACE does not convert angiotensin I to aldosterone, angiotensinogen, or renin.
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