Question

Biologically active adrenaline and ephedrine used to increase blood pressure contain :

• A. Primary amino group
• B. Secondary amino group
• C. Tertiary amino group
• D. Quaternary ammonium salt

Answer 1

The Correct Option is B

• Adrenaline and ephedrine are both sympathomimetic amines that act on the sympathetic nervous system, primarily used to increase blood pressure.
• These compounds both contain a secondary amino group, which means the nitrogen atom is bonded to two carbon atoms (part of an alkyl or aryl group) and one hydrogen atom.
• The secondary amino group is critical for their biological activity, as it plays a key role in interacting with receptors that regulate blood pressure.

Thus, the correct answer is (B) Secondary amino group.

Answer 2

Both adrenaline (epinephrine) and ephedrine have a secondary amino group in their structure, which is crucial for their biological activity in stimulating the central nervous system and increasing blood pressure.