Modelling protein digestion in the stomach

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

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Studying the blind spot

Demonstrating a method to determine where exactly the blind spot is in our visual field.

The effect of bile in fat dispersion

If bile contains no digestive enzymes, why does it play such an important role in digestion? How...

Studying adsorption

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

The change in respiratory rate during exercise

Through mild physical exercise, even a trained body doubles the number of breaths it takes...

The pupillary light reflex

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

Substances in tobacco smoke

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

Colour vision test

Red-green colour deficiency is a genetic condition.

What are lichens made of?

A combination of fungal hyphae and algal cells viewed under a light microscope at a hundred...

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