Biologia

 
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Capa superior de la epidermis de una hoja caducifolia

Principle

The leaf of a deciduous plant consists of several layers. Cells containing chloroplasts are found in deeper layers. The externally exposed tissue layer protects the plant against evaporation losses, however, it must also be transparent to light needed for photosynthesis in the deeper ...

 
Detalles

Num.Producto: P1441801

Capa inferior de la epidermis con células guarda

Benefits
  • Experiment is part of a complete solution set with a total of 50 experiments for all microscopy applications
  • With student worksheet, appropriate for all class levels
  • With detailed instructor information, incl. sample microscopy image
  • Optimized for tight schedules, i.e. ...
 
Detalles

Num.Producto: P1441901

Sección transversal de una hoja caducifolia

Principle

The leaf of a deciduous plant consists of several layers. Cells with many chloroplasts are found in the deeper layers. The external tissue layer, the epidermis, protects the plant against moisture loss due to evaporation. It does not contain any chloroplasts and the cells appear ...

 
Detalles

Num.Producto: P1442001

Corte transversal de una hoja de conífera (gimnosperma) - adaptación a condiciones áridas

Principle
Some trees do not possess large deciduous leaves, instead they have green needle-shaped (acicular) leaves. Due to the reduction of their surface, these leaves are well adjusted to arid conditions. In addition, they are mostly covered by a layer of wax (cuticula) and the stomatal ...

 
Detalles

Num.Producto: P1442101

Tallo de una planta dicotiledónea - Indentificación del xylema y el floema

Benefits
  • Experiment is part of a complete solution set with a total of 50 experiments for all microscopy applications
  • With student worksheet, appropriate for all class levels
  • With detailed instructor information, incl. sample microscopy image
  • Optimized for tight schedules, i.e. ...
 
Detalles

Num.Producto: P1442201

El tallo de planta monocotiledónea

Principle

The stem of plants must accomplish various functions. It supports the leaves, the lateral branches, and the blossoms. The mechanical supportive tissue (collenchyma) is responsible for the necessary stability and elasticity. Did you ever come to think about how a 20m-tall tree is ...

 
Detalles

Num.Producto: P1442301

Raíz y células de los pelos radiculares

Benefits
  • Experiment is part of a complete solution set with a total of 50 experiments for all microscopy applications
  • With student worksheet, appropriate for all class levels
  • With detailed instructor information, incl. sample microscopy image
  • Optimized for tight schedules, i.e. ...
 
Detalles

Num.Producto: P1442401

Sección transversal del ovario de una planta

Benefits
  • Experiment is part of a complete solution set with a total of 50 experiments for all microscopy applications
  • With student worksheet, appropriate for all class levels
  • With detailed instructor information, incl. sample microscopy image
  • Optimized for tight schedules, i.e. ...
 
Detalles

Num.Producto: P1442501

Almidón como reserva nutricional en plantas

Principle
The most significant process on earth takes place inside the chloroplasts of the cell, i.e. photosynthesis. Energy-rich glucose (dextrose) and oxygen are synthesized from the energy-poor substances carbon dioxide and water. The energy comes from the
sun. The plant converts glucose ...

 
Detalles

Num.Producto: P1442601

Plumas en las alas de los pájaros

Principle

Feathers give the birds stability and enable flight. The stability, on the one hand, depends on the chemical structure. Feathers consist of the same resistant material as the scales of reptiles, which is β-keratin. On the other hand, the vane constitutes an almost impenetrable ...

 
Detalles

Num.Producto: P1442701

Comparación entre leche fresca y leche pasteurizada

Principle

Milk is an important basic food because it supplies the body with proteins for building up muscles, calcium for the stabilization of bones, and vitamins. Unprocessed fresh milk from the cow has a fat content ranging from 3.5 to 5 percent. The fat content of purchased milk is reported ...

 
Detalles

Num.Producto: P1442801

Comparación de medidas de peces

Benefits
  • Experiment is part of a complete solution set with a total of 50 experiments for all microscopy applications
  • With student worksheet, appropriate for all class levels
  • With detailed instructor information, incl. sample microscopy image
  • Optimized for tight schedules, i.e. ...
 
Detalles

Num.Producto: P1442901

Músculo esquelético

Principle

Your skeletal muscles make it possible that you can move, hold your body in an upright position when you are standing or sitting, or your face can smile. The muscles of all mammals possess a similar basic structure.

Benefits

  • Experiment is part of a complete solution set with ...
 
Detalles

Num.Producto: P1443001

Células sanguíneas

Principle

Every human being possesses 5 to 7 liters of blood which constantly circulates in the body. When circulating, it transports nutrients and heat to wherever needed. The blood also has many other functions, for example, it is responsible for the closure of wounds and it is capable ...

 
Detalles

Num.Producto: P1443101

Riñón

Principle

Compared to the liver, the kidney is a rather small organ, however, it is the most significant excretion organ in humans apart from the skin and the lungs. Water and the substances dissolved in it are first transferred to the renal corpuscle (Malpighian
body). The liquid travels ...

 
Detalles

Num.Producto: P1443201

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