Insulin is the example of
Answer & explanation
Correct answer: option 1
The correct answer is Option (1) → Peptide Hormones
Hormones are grouped by chemical nature: steroids (estrogens, androgens, the adrenal cortical hormones), polypeptides (insulin, endorphins) and amino acid derivatives (epinephrine, norepinephrine, thyroxine). Insulin is a polypeptide (peptide) hormone of 51 amino acids in two chains joined by disulphide bridges; it is released by the pancreas when the blood glucose level rises.
NCERT (2026-27 edition):
Hormones

Note: The same/similar question has been asked in different years by NTA as per the details given below:
| 2026 | 2025 | 2024 | 2023 | 2022 |
|---|---|---|---|---|
| – | – | – | 02-06 S3 31-05 S1 | – |