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The Cell

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Linda Kozaj

on 6 June 2013

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Transcript of The Cell

The Plant Cell (Eukaryotic) Endoplasmatic Reticulum Ribosomes Chloroplast Vacuole Cellulose Cell Wall Differences: The Animal Cell (Eukaryotic) Nucleus Cytoplasm Cell Membrane Analogies: Golgi Apparatus Lysosomes Mitochondria The Cell The smallest unit of life and the building block of all living organisms. Plant Tissue Animal Tissue Tissues: made by cells similar in structure and function. Organ: group of tissues working together. Plant Organ (Pistil) Animal Organ (Lung) System: interaction between different organs. Organism: all the previous levels make up this level of organization, which is member of a species. Eukaryotic (from the Greek word 'Truly Nuclear'): Cells whose DNA is contained within a nucleus, they are complex and have several other organelles in addition to the nucleus. Prokaryotic (from the Greek word 'Before the Nucleus'): Less structured cells whose DNA is not located in the nucleus. Unlike Eukaryotic cells, these ones do not have nucleus nor organelles. Population: more organisms of one species. Community: population of different species and kingdoms living in a habitat. -Animals (Eukaryotes);
-Plants (Eukaryotes);
-Bacteria (Prokaryotes):
microscopic, one-celled forms of life living everywhere.
-Protoctista (Eukaryotes):
Catch-all category which includes all those organisms that do not fit much into the other kingdoms.
-Fungi (Eukaryotes):
Organisms that obtain their food molecules by absorbing them from other living or non-living organic sources. They produce spores which develop to branching multi-cellular threads, called hyphae. Ecosystem: interaction between living (a community) and non-living part (light, temperature, water (H2O), oxygen.) Characteristics:
-Own movement;
-Sensitivity. Thanks for attention, by Linda Kozaj, Lorenzo Rondanini, Bristi Upama. Membranous sacs that transforms proteins that come to it from the Endoplasmatic Reticulum and packs them in small sacs. Membrane-bound sacs of enzymes that recycle useless cellular material into small organic molecules that can be reused. Large organelles where the production of ATP (Adenosine Triphosphate, the main energy source of the cell) takes place due to the combination of oxygen and food. Organelles made of RNA and proteins. They're the site of protein synthesis. Network of tubular tunnels. There are two different sorts of Endoplasmatic Reticulum:
-Rough ER, has ribosomes attached and aids the protein synthesis;
-Smooth ER, hasn't ribosomes attached and is involved in fats production. Fluid made of water and protein material. Here reside the organelles and it's where most of the cellular activities take place. It's called the cell's control centre, because it contains chromosomes, which produce proteins, that determine the activities of the cell. It contains the genetic heritage. Membrane which covers the cell content. Its primary function is to regulate the movements of the materials that enter and leave the cell. Layer that covers the cell to give structural support. A large organelle which contains the 'cell sap' (water and dissolved substances). The vacuole gives structural support and it's the main storage of materials of the plant cell. The site of Photosyntesis.
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