The film explores the structure and function of plant ... cells using a microscope. It begins with observing onion cells, highlighting their components such as the cell wall, nucleus, and vacuoles.

This makes a big vacuole more effective at volume expansion. Gilroy, S. & Trewavas, A. Signal processing and transduction in plant cells: the end of the beginning? Nature Reviews Molecular Cell ...

Chloroplasts also have a third internal membrane called the thylakoid membrane, which is extensively folded and appears as stacks of flattened disks in electron micrographs. The thylakoids contain ...