Biologia

 
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Osmotic behaviour of plant cells

 
Detalles

Num.Producto: P0540500

Determination of the osmotic value of a cell

 
Detalles

Num.Producto: P0540700

Permeability of living and denatured cell membranes

 
Detalles

Num.Producto: P0540800

Effect of the quantity of the fermentable substrate on alco- holic fermentation

 
Detalles

Num.Producto: P0797800

Combinación sojetiva de colores

Principle

If a circular disc separated into various differently coloured sectors is rotated by a motor so fast that the eye can no longer distinguish the colours, a mixed colour is then perceived. By varying the composition and size of the sectors, it is possible to give the impression of any ...

 
Detalles

Num.Producto: P0872500

Influence of temperature on the enzyme action

 
Detalles

Num.Producto: P0906500

Influence of the hydrogen ion concentration on the enzyme action

 
Detalles

Num.Producto: P0906600

Photosynthesis and carbon dioxide

 
Detalles

Num.Producto: P0966500

 
Detalles

Num.Producto: P0966600

Limpieza del agua por filtración via carbón activo

Principle

Active carbon is a good absorbent and as such is excellent when used as a filter. During water treatment, for example, active carbon filters are used to remove pesticides and detergents (soap and washing-up liquid). The cleansing of water can be demonstrated impressively by ...

 
Detalles

Num.Producto: P0988100

Descomposición de celulosa

Study of microbial activity:decomposition of cellulose by soilmicroorganisms.Microbial decomposition of cellulose isa major factor in the carbon cycle, as40 to 70% of plant dry matter consistsof cellulose.
 
Detalles

Num.Producto: P0988700

Influencia de la temperatura sobre precesos microbianos de descomposición

 
Detalles

Num.Producto: P0988800

Efecto de aceite mineral o salsobre la descomposición de ce- lulosas

 
Detalles

Num.Producto: P0988900

Descomposición microbiana de aceite mineral

 
Detalles

Num.Producto: P0989100

Efecto de la temperatura sobre la germinación y el creci- miento del berro

Eight petri dishes are filled nearly to the brim with finely sieved, moist garden soil and 50 cress seeds are planted in each one. They are then placed inside a device which keeps each of the samples at a different temperature, whereby they are evenly distributed between cold and warm regions. ...

 
Detalles

Num.Producto: P0989600

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