Low frequency active sonar Illustration Play

Mechanism of enzymatic reactions Student activity Play

Notation and energy diagram Animation Play

Passive and active ecosystem conservation Slideshow Play

Passive and active immunisation Whiteboard exercise Play

Salts of weak acids and strong bases Student activity Play

Shampoo Animation Play

Steroid compounds – synthesis site and function Whiteboard exercise Play

Structure of enzymes Animation Play

Synapses – functioning and importance of junctions between neurones Student activity Play

The alveoli – the site of gas exchange Student activity Play

The enzyme-catalysed reaction Whiteboard exercise Play

The enzyme–substrate complex Student activity Play

The glomerulus – the site of glomerular filtrate production Student activity Play