Sound localisation

Sound localisation is an important element in orientation. A sound reaches the ear closest to it first.

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Protein denaturation

Proteins are sensitive to environmental changes. In this video we demonstrate how easy it is to...

The patellar reflex

When the patellar ligament is lightly tapped, the extensor muscle stretches slightly.

Making a tissue sample

Examination of the cells and stomas on the epidermis of a pelargonium at 100x magnification.

Modelling protein digestion in the stomach

Let’s simulate protein digestion in the stomach using a mixture of hydrochloric acid and pepsin.

Substances in tobacco smoke

Don’t smoke! This video demonstrates what happens in the lungs when a person smokes.

Studying adsorption

Purifying a solution coloured with fuchsine dye with finely ground activated carbon granules and...

Preparing a tissue sample from an onion

Examination of long, rectangular onion epidermal cells under the microscope at 100x magnification.

The pupillary light reflex

In strong light the pupil contracts, while in low light it dilates.

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