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Cell Models

Cell Models
For life all cells have basic needs. Cells have diverged in their structure and function to accommodate these survival requirements. Here are some KEY TERMS to help you think, explore and search for similarities and significant differences that have become the characteristics of eukaryote (animal, plant) and prokaryotic (bacteria) cells. Examples might be searching: eukaryote prokaryote reproduction or animal plant cell energy. Reproduction / cell division Energy trapping, storage and consumption Form / shape / structure Cell specialization Compartmentalization of cell functions Communication within and beyond the cell Cell / organism survival

Interactive Ear tool showing how the ear works by Amplifon The ear is the organ which controls hearing and balance, allowing us to understand our surroundings and position ourselves correctly. It is split into three parts: outer, middle and inner. This guide will take you through each part of the ear in turn, answering those essential questions – what are the parts, what do they do, and how? Pinna Helix Antihelix Concha Antitragus Lobe Cartilage Temporal Muscle (Temporalis) Temporal Bone Semicircular Canals Ganglia of the Vestibular Nerve Facial Nerve Ear Canal (External acoustic meatus) Mastoid Process Internal Jugular Vein Styloid Process Internal Cartoid Artery Eardrum (Tympanic Membrane) Auditory Tube (Eustachian Tube) Outer Ear – Welcome to the Interactive Ear! This is the part of the ear that people can see, and funnels sound into your ear canal. The rim of the pinna. A curved panel of cartridge. Bowl-shaped part of pinna. The small, hard bump above your ear lobe. The earlobe contains a large blood supply, helping to keep the ears warm.

The Cell and its Organelles Lists of Nobel Prizes and Laureates The Cell and its Organelles Play the Incredible Megacell Game About the game An ultracentrifuge is used for separating the organelles in the cell according to their size, shape and density. Read More » The Nobel Prize The 1974 Nobel Laureates in Physiology or Medicine developed methods that made it possible to see and identify organelles, the specialised compartments inside all our cells.Read More » Share this: Share on facebook Share on google_plusone_share Share on twitter More Sharing Services Share on email To cite this pageMLA style: "The Cell and its Organelles". Recommended: The Legacy of Alfred Nobel On 27 November 1895 Alfred Nobel signed his last will in Paris. Play the Blood Typing Game Try to save some patients and learn about human blood types! Unlocking the Secrets of Our Cells Discover the 2012 awarded research on stem cells and cell signalling. Contact E-mail us Press Sitemap A-Z Index Frequently Asked Questions Terms Follow Copyright © Nobel Media AB 2014

Observación de tejidos y células (prácticas de laboratorio) Material Microscopio Portaobjetos y cubreobjetos Cuchilla Pinzas Bulbos de cebolla Método Mediante una cuchilla y unas pinzas, aislar una parte de la epidermis correspondiente a la zona cóncava de la tercera o cuarta escama de la cebolla y colocarla extendida en un portaobjetos; a continuación se coloca el cubreobjetos y se observa al microscopio óptico. Observación Con el objetivo de menor aumento, se examinará la preparación entera, observando que está formada por células alargadas que encierran el núcleo. La estructura, aunque no se pueda observar en su totalidad con este método, es la típica de una célula vegetal. Los plastos son orgánulos citoplasmáticos típicamente vegetales. Los cloroplastos son los responsables de la asimilación fotosintética del carbono en las plantas verdes, los cromoplastos lo son del color anaranjado o rojizo de distintas estructuras vegetales (flores, frutos, etc.). Material Cuentagotas Lanceta y aguja enmangada Lugol Algas filamentosas Pulpa de tomate Tubérculo de patata

DNA from the Beginning - An animated primer of 75 experiments that made modern genetics. The PCR Method - a DNA Copying Machine Lists of Nobel Prizes and Laureates The PCR Method - a DNA Copying Machine Play the Eye of the Donkey Game About the game PCR is a method by which a few fragments of DNA can be duplicated into millions in a couple of hours. This makes PCR a very useful method in, amongst other fields, forensic science. The Nobel Prize The 1993 Nobel Prize in Chemistry was awarded for the invention of PCR, a method that made it possible to copy a large numbers of DNA fragments in only a few hours. Share this: Share on facebook Share on google_plusone_share Share on twitter More Sharing Services Share on email To cite this pageMLA style: "The PCR Method - a DNA Copying Machine". Recommended: The Legacy of Alfred Nobel On 27 November 1895 Alfred Nobel signed his last will in Paris. Play the Blood Typing Game Try to save some patients and learn about human blood types! Unlocking the Secrets of Our Cells Discover the 2012 awarded research on stem cells and cell signalling. Contact E-mail us Press Sitemap A-Z Index Terms

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