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29 de sept. de 2011 · A cell is the simplest unit of a self-contained living organism, and the vast majority of life on Earth consists of single-celled microbes, mostly bacteria. These consist of a simple ‘prokaryotic’ cell, with no nucleus. The bodies of more complex plants and animals consist of billions of ‘eukaryotic’ cells, of varying kinds, adapted to ...
Introduction to the cell. Cells are the most basic unit of life. All cells have a membrane that separates them from the outside world. Although cells are small, they are not simple. Cells contain different components, such as the cytoplasm, ribosomes, and genetic information in the form of DNA. Created by Sal Khan.
Compares and contrasts prokaryote cells and eukaryote cells before exploring organelle structures and functions! Video includes the modern cell theory and p...
The first person to observe cells as microscopic structures was the British scientist Robert Hooke. In fact, he was the person who gave cells their name. In his book Micrographia, he used the term cell to refer to the box-like structures he saw when he looked at dead cork tissue through a simple microscope 1 .
Key points: All cells have a cell membrane that separates the inside and the outside of the cell, and controls what goes in and comes out. The cell membrane surrounds a cell’s cytoplasm, which is a jelly-like substance containing the cell’s parts. Cells contain parts called organelles. Each organelle carries out a specific function in the cell.
Entrega 121. Bad Boys Ride or Die y otras buddy movies. Ante el estreno de "Bad Boys Ride or Die", cuarta entrega de la saga de "Dos policías rebeldes", con Will Smith y Martin Lawrence, José María Aresté, Pablo de Santiago y Juan Luis Sánchez –del equipo de Decine21–, comentan el film y repasan las buddy movies más recordadas.
Ficha de la película: La celda (Título original: The Cell). Una película de cine dirigida por: Tarsem Singh el año: 2000. Interpretada por: Jennifer Lopez, Vince Vaughn, Vincent D’Onofrio, Marianne Jean-Baptiste, Dylan Baker… Argumento: Un asesino en serie parece detrás de una cadena de secuestros que tienen como
