Animal cell, cutaway artwork. The cell membrane (green) surrounds internal structures(organelles) that include the nucleus (purple), which contains the nucleolus (sphere, lower centre). The nucleus contains theDNA ( deoxyribonucleic acid ) that controlsprotein synthesis on ribosomes (chains ofsmall yellow spheres) in the rough ER( endoplasmic reticulum, membrane folds, above and at right of nucleus). The proteins arestored in the flattened membranes of the Golgi complex (above and at right of rough ER).Energy is generated by mitochondria (cylinders, one at bottom centre). Cells are themicroscopic structural and functional units of allliving organisms. See B060/063 for a plant cell.
NOT FOR USE IN EDUCATIONAL POSTERS
© Russell Kightley/Science Photo Library
Mostar, the Old Bidge over the Neretva river, Bosnia and Herzegovina
Old Bridge (Stari Most) reflected in Neretva River, Bosnia and Hercegovina, at dusk, long exposure. The bridge is a famous tourist destination and was destroyed in the Bosnian War in 1993 but rebuilt ten years later.
Mostar was named after the bridge keepers (mostari) who in the medieval times guarded the Stari Most (Old Bridge) over the Neretva. The Old Bridge, built by the Ottomans in the 16th century, is one of Bosnia and Herzegovina's most recognizable landmarks, and is considered one of the most exemplary pieces of Islamic architecture in the Balkans.
In 2005 the Old Bridge Area of the Old City of Mostar was added to the Unesco world heritage list
© 2016 Frans Sellies
Lochan na h-Achlaise Reflections Panoramic #2 crop
Spectacular dramatic weather creates an amazing light show over the Mountains of Loch na h-Achlaise. The tranquil water of the loch reflects the distant mountains, islands of trees, and foreground rocks in perfect symmetry. nLochan na h-Achlaise is a lake in Rannoch Moor - Scottish Highlands and is nearby to Black Mount, Achallader, and Stob a Choire Odhair. Near Glencoe, it'u2019s the gateway to the Scottish Highlands and not only produces some of the most dramatic scenery in the world, but also some of the most changeable weather. n'nThe four main peaks in this photo: nLeft: Meall Beag (475metres)'nMiddle Left: Clac Leathad (1098 metres)'nMiddle Right: Meall a Bhuiridh (1108 metres)'nFar Right in the Distance: Mamores Range
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