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E1 : L'adaptation aux changements

9 min 32 s
Using the example of fluctuating environmental temperatures and internal bodily responses, this introductory show illustrates how the process of homeostasis maintains the balance of the internal state.
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E2 : La mer intérieure

9 min 32 s
Through the five basic homeostatic mechanisms that control the exchange of intra and extracellular fluids, the body constantly regulates and balances itself to meet its internal needs and to adapt to external conditions.
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E3 : L'osmorégulation

9 min 33 s
The complex filtration process taking place in the kidneys is presented to illustrate the regulation of the body by osmosis.
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E4 : Le cycle de la rétroaction

9 min 33 s
The constant homeostatic monitoring to inhibit or stimulate the release of hormones is called a “feedback cycle”. This clip illustrates how the negative feedback cycle works and evokes the body's different responses to messages from receivers.
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E5 : L'équilibre biochimique

9 min 32 s
The program deals with the chemical inhibitory processes in the production of enzymes, the principle of massive action and the natural tendency of chemical reactions to behave in a double way.
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E6 : Les hormones messagères

9 min 34 s
Hormones play a role in homeostatic balance: their monitored production stimulates chemical reactions.
    Levels:
    Secondaire 12e année
    Subjects:
    Sciences et technologie Biologie
    Skills:
    Pensée critique
    French level:
    C1 : Autonome