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Demonstration of the total potential in a crab nerve
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Purpose of the experiment:
The total potential of a nerve is a nervous message and thus it is of an electrical nature. Measuring the variations in the difference in potential on the surface of a nerve following increasing stimulations gives us a direct, detailed illustration of how a nerve responds.
2008 updated list of materials
Generis 5+ is replaced by Biology Science Studio (ref. 000 744)
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The Achilles reflex: myotatic reflex
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Purpose of the experiment:
By striking the Achilles tendon, you can record the Achillean myotatic reflex. Bearing in mind that a human nerve impulse travels at the average speed of 40 m / sec, you will calculate the distance travelled by the nerve impulse from the delay in the response.
2008 updated list of materials
Generis 5+ is replaced by Biology Science Studio (ref. 000 744)
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Chlorophyll absorption spectrum
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| Purpose of the experiment:
When placed in a CCD spectrophotometer in the path of light, a chlorophyll extract will absorb certain wavelengths, which can be identified by comparing them with a control. |
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Change in human breathing rate during exertion
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Purpose of the experiment:
To breathe into a mouth funnel, prior to and after physical exertion, in order to demonstrate the variations in breathing induced by this exertion.
2008 updated list of materials
Generis 5+ is replaced by Biology Science Studio (ref. 000 744)
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Climatic factors
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What are the variations of environmental conditions?
Generis 5+ is replaced by Biology Science Studio (ref. 000 744)
Various observations in the nature (behaviour of animals, growth of plants...) should be interpreted based on climatic factors.
2008 updated list of materials
Generis 5+ is replaced by Biology Science Studio (ref. 000 744)
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Water quality in the field
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How to evaluate the quality of water in a river?
What is the impact of urbanisation, the discharge of wastewaters...?
2008 updated list of materials
Generis 5+ is replaced by Biology Science Studio (ref. 000 744)
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Activity and skin temperature
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| - How to evaluate the changes in the circulatory system of the body depending on the activity of a person?
2008 updated list of materials
Generis 5+ is replaced by Biology Science Studio (ref. 000 744)
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Simulation of a seismic wave
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| - How is a vibration propagated?The damages caused by the earthquakes depend, for a same type of wave, on the conditions of propagation. The indirect study of the structure of the Earth is also based on the analysis of the behaviour of waves depending on the state, the hardness or the nature of materials the waves are passing through.
2008 updated list of materials
Generis 5+ is replaced by Biology Science Studio (ref. 000 744)
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Measurement of human 02 exchanges during respiration
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- How to demonstrate the respiration (cellular mechanism) in man?
This experiment allows evaluating the human metabolism by measuring the total consumption of oxygen.
2008 updated list of materials
Generis 5+ is replaced by Biology Science Studio (ref. 000 744)
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Performing an ECG
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| - This experiment allows showing the different phases of a cardiac cycle |
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Cell respiration and O2 consumption
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- How to evaluate the modifications of the respiration (cellular mechanism) in man?
The production of ATP by the cells increases with the work performed. This production requires the supply of oxygen. We can therefore evaluate the cellular activity in man by evaluating its total consumption
2008 updated list of materials
Generis 5+ is replaced by Biology Science Studio (ref. 000 744)
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Spirometry and ventilation
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- What are the pulmonary volumes available during the ventilation? What is the thoracic capacity?
This experiment allows showing the current volume, the volume of inspiratory reserve, the volume of expiratory reserve and the residual volume
2008 updated list of materials
Generis 5+ is replaced by Biology Science Studio (ref. 000 744)
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Spirography and ventilation
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- What are the volumes of gases exchanged during the ventilation? How do these volumes vary?
This experiment allows showing the rhythm and the amplitude of the ventilation, whatever the state of the person or his activity
2008 updated list of materials
Generis 5+ is replaced by Biology Science Studio (ref. 000 744)
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Determination of MEVS
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- What are the pulmonary capacities of an individual?
This experiment allows showing the functional state of the respiratory organs by calculating the volume expired during the first second (MEVS). However, the protocol applied here is not precise enough for the results to be used medically |
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Plotting volume output curves
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- What is the physiological state of the respiratory organs of a person?
This experiment demonstrates the functional state of the respiratory organs by calculating the volume and the output of the expired gas. The results are represented in the form of a curve "Output as a function of volume" |
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O2 and respiratory metabolism
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- What is the activity of plant cells without chlorophyll? How to evaluate them?
This experiment allows demonstrating the metabolism of the plant cells without chlorophyll by measuring the variations in the quantity of oxygen in the medium
2008 updated list of materials
Generis 5+ is replaced by Biology Science Studio (ref. 000 744)
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O2 and photosynthetic metabolism in the cell
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- How does the activity of chlorophyllous cells vary depending on the available light?
This experiment allows demonstrating the exchanges of oxygen by the chlorophyllous plant cells, firstly in the darkness, then in the presence of light
2008 updated list of materials
Generis 5+ is replaced by Biology Science Studio (ref. 000 744)
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O2, CO2 and cell respiration
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- How to measure cellular activity? What is the involvement of organic matter in the respiration?
This experiment demonstrates the metabolism of yeasts by measuring the variations in the quantities of oxygen consumed and carbon dioxide released
2008 updated list of materials
Generis 5+ is replaced by Biology Science Studio (ref. 000 744)
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O2, CO2 and photosynthesis
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- How does the activity of chlorophyllous cells vary depending on the available light?
This experiment allows demonstrating the gaseous exchanges of chlolrophyllous plant cells by measuring the variations in the quantity of oxygen and carbon dioxide in the medium, firstly in darkness, then in the presence of light
2008 updated list of materials
Generis 5+ is replaced by Biology Science Studio (ref. 000 744)
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Hill's reaction
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| - What are the conditions necessary for a transfer of energy during the photosynthesis? What happens to the electrons resulting from the photolysis of water?
2008 updated list of materials
Generis 5+ is replaced by Biology Science Studio (ref. 000 744)
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Changes in heart rate and adaptation to effort
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- What are the variations in the cardiac rate when a person performs increasingly intense exercises?
This experiment is conducted without requiring the subject to go to the limit of his abilities; that is possible only under medical supervision
2008 updated list of materials
Generis 5+ is replaced by Biology Science Studio (ref. 000 744)
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Heart rate and adaptation to effort (ECG performed)
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- How does the heart react to a modification of the activity of the organism?
This experiment allows showing the variations of the cardiac activity (rhythm and electrical activity) by taking an electrocardiogram during different types of activities |
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Heart rate and adaptation to effort (effort test)
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- What are the abilities of a person to practice a physical activity?
The Ruffier-Dickson test proposed here allows observing the reactions of the heart to an increasingly intense pre-programmed activity. This experiment allows comparing individuals or monitoring the changes in the same person. The experimental results cannot however be used formedical purposes |
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Evaporation-transpiration in plants
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| - What are the exchanges of water taking place in a plantat the level of aerial parts?We shall evaluate quantitatively the evaporation-transpiration in an aerial green plant of modest size
2008 updated list of materials
Generis 5+ is replaced by Biology Science Studio (ref. 000 744)
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Enzymatic activity: the Glucose Oxydase
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- What is the rate of an enzymatic reaction depending on its concentration of substrate?
This experiment demonstrates that the rate of reaction increases with the concentration of substrate up to a threshold value that depends on the quantity of enzyme present
2008 updated list of materials
Generis 5+ is replaced by Biology Science Studio (ref. 000 744)
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The transmembrane exchanges
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| - How to demonstrate the passive exchanges across a membrane?
2008 updated list of materials
Generis 5+ is replaced by Biology Science Studio (ref. 000 744)
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Demonstration of muscle tone by electromyography (EMG)
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Changing the body's posture induces variations in the activity of the muscles working to maintain muscle tone.
These variations are measured by electromyography.
2008 updated list of materials
Generis 5+ is replaced by Biology Science Studio (ref. 000 744)
Purpose of the experiment:
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