Vesikkelissä

Vesikkelissä is the Finnish phrase meaning “in a vesicle,” used especially in biological texts to indicate that an object or substance is located inside a vesicle. Vesikkelissä is the inessive form of vesikkeli (vesicle) with the locative suffix -issä, and it functions as a grammatical marker rather than a standalone concept.

Vesikkeli refers to a membrane-bound compartment that stores, transports, or processes substances. Vesicles are formed by budding from membranes such as the endoplasmic reticulum, Golgi apparatus, or plasma membrane. They play key roles in endocytosis, exocytosis, and intracellular trafficking. Types include endosomes, lysosomes, synaptic vesicles, secretory vesicles, and extracellular vesicles such as exosomes.

In scientific Finnish, vesikkelissä is used when describing molecules or organelles enclosed within a vesicle, for example, “aineet säilyvät vesikkelissä.” The phrase reflects grammar rather than a separate concept, and it is widely used in reporting observations about cellular transport and vesicle content.

Related topics include vesicle biology, vesicle trafficking, endocytosis, exocytosis, and extracellular vesicles.