Insulin
Insulin is a peptide hormone produced by the pancreas.
It regulates the metabolism of carbohydrates, fats, and protein by promoting the absorption of glucose from the blood into cells of the liver, fat, and skeletal muscles and its conversion to glycogen.

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Key terms in this lesson
- globular protein
- A water-soluble, roughly spherical protein folded so that hydrophilic R groups face outwards, such as an enzyme or haemoglobin.
More in Biological Molecules
- Polypeptides
- Protein Structure
- Hydrolysis of Peptides
- Globular Proteins
- Conjugated Proteins
- Haemoglobin
- Catalase
- Fibrous Proteins
All 63 lessons in Biological Molecules · All OCR AS-level Biology topics