Inherited predispositions to neoplasms Animation Play

Insect egg cell Illustration Play

Interaction of amine and polypeptide hormones and cell receptors Animation Play

Interaction of steroid hormones and cell receptors Animation Play

Internal fertilization Animation Play

Invention of the voltaic cell Animation Play

Irreversible reactions Slideshow Play

Isolation of DNA from other cell structures Animation Play

Junction between an antigen and a helper T cell Whiteboard exercise Play

Kepler's First Law Simulation Play

Kepler's Laws Student activity Play

Leucocytes – always ready to fight Student activity Play

Levels of cell organization in the organism Slideshow Play

Life processes in plants Student activity Play

Light microscopy – magnifying the object Student activity Play

Light microscopy – magnifying the object Whiteboard exercise Play

Lipids – the energy source of the cell Whiteboard exercise Play

Lipids – the energy source of the cell Student activity Play

Liquid-vapour equilibrium Student activity Play

Liquids Animation Play

Macro-elements; trace elements and ultra-trace elements Slideshow Play

Macroelements Student activity Play

Macroelements in the cell Slideshow Play

Magnetic properties Student activity Play

Major sources of energy Slideshow Play