![Diagram of casein micelles.](http://static.sciencelearn.org.nz/images/images/000/000/952/full/FS_TGCOWS_INF_01_CowsMakingModifiedMilk_CaseinMicelle.jpg?1674165204)
Scientists propose that casein micelles consist of a complex of submicelles. The calcium phosphate and hydrophobic interactions between submicelles contribute to the stability of the micelle. Kappa casein around the outside stabilises the micelles against aggregation.
Key
A: submicelle
B: protruding chain
C: calcium phosphate
D: kappa casein
E: phosphate group