Key concepts in Biology

This video shows Greg Foot explains the main differences between light and electron microscopes.

A science video with Dr Maggie Aderin-Pocock and Dr Alex Lathbridge about how to investigate osmosis

Gab Astorga explains how to calculate cell size and scale.

Gab Astorga explains the similarities and differences between plant and animal cells.

Gab Astorga explains the factors that affect the rate of diffusion.

Gab Astorga explains how active transport helps living things get the nutrients they need.

Gab Astorga explains how enzymes help speed up the metabolism.