Why do yeast cells stick together?

Yeast cells stick together primarily due to the production of flocculins, which are adhesive proteins that promote clumping. This aggregation can be advantageous for survival, as it enhances the yeast's ability to access nutrients and resist environmental stressors. Additionally, the formation of multicellular structures can aid in reproduction and improve fermentation efficiency in certain conditions. Overall, these interactions help yeast thrive in their environments.