hormones

Question

Insulin is a:

RankGuru · Accepted Answer

**Insulin** is a **Peptide Hormone** (a small protein) secreted by the $\beta$-cells of the pancreatic islets.
- It consists of 51 amino acids arranged in two polypeptide chains ($A$ and $B$) linked together by **disulfide bridges**.
- It plays a crucial role in regulating carbohydrate metabolism by facilitating the uptake of glucose into cells.
- In contrast, hormones like testosterone or cortisol are **Steroid Hormones** (lipid-derived).

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hormones

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