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Basics of Biology III
What is the importance and function of enzymes? The lock-and-key principle is explained and, based on amylase and katalase, the dependence of reaction speed and intensity of effect on temperature and pH-value can be seen. With microscopic pictures and graphs the structure of animal cells is explained. But their appearance is very different depending on their functions. Nerve cells differ from blood cells just like the latter from sperm cells. A tissue is a combination of many cells that perform specific functions in the body. Any kind of growth of an organism is only possible when new cells are created. The process of cell division is called mitosis. This is then differentiated from the multiplication of reproductive cells, as in them the number of chromosomes must be reduced to half. Impressive shots and graphs illustrate these processes. Together with the extensive accompanying material the DVD is ideally suited for use in the classroom.
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Lynx and wildcat
The film introduces two native large carnivores - the lynx and the wildcat.
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Neuronen
Was wir fühlen, wie wir reagieren, das wird gesteuert durch die Nervenbahnen unseres Gehirns. In dem Film wird das Nervensystem dargestellt und der Aufbau der einzelnen Nervenzellen erläutert. Welche Übertragungswege ein Reiz nimmt und auf welchen Wegen eine Reaktion ausgelöst wird, wird in anschaulichen Grafiken gezeigt.
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Alkohol
Jenke von Wilmsdorff startet ein Experiment, das ihn an seine Grenzen bringen soll. Er trinkt über einen langen Zeitraum täglich exzessiv Alkohol und will herausfinden, was die „Volksdroge Nummer 1“ mit ihm macht.
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Fossils
Is it possible for a stone to tell us a story about what animals and plants used to be there in former times?
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Human Lung
Only rarely do we notice that we need them: our lungs. Mostly, we breathe unconsciously and shallowly – especially if we have a sitting job.
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Horses
They are the epitome of power and elegance. Man domesticated them long after dog and cat, they provided meat, were strong agricultural helpers pulling ploughs and other implements. These hard times are over for the animals – their range of service has changed. The most favourite animal of many children and grown-ups, it has changed from former working animal to today’s companion for sport and leisure. The horse breeds known today are descended from a primeval horse. It lived about 50 million years ago – that is fifty with six zeros after it!
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Contraception
In view of a considerable number of teenage pregnancies and commencement of sexual activities at an average age of 15, the topic of contraception is extremely important in lower secondary school. This DVD offers a complete film as well as working materi- al that allows for a discussion of the topic according to the requirements of the respective type of school as well as to the socio-cultural circumstances. Apart from the film itself, which outlines the most important contraceptive methods, selected animations can be accessed via the menu. They illustrate complex content such as a woman’s cycle, structure and function of the male sexual organs and the effects of different contraceptives in terms understandable to pupils. The film is suitable for an entire series of lessons, with the teachers deciding themselves on the basis of the menu struc- ture what content is appropriate for a class.
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Microcosm
We perceive the world we live in with our sense organs. However, perception with our senses represents only a limited part of the cosmos we live in. There is a world eluding the perception of our eyes. It exists hidden away for its cosmos is extremely small. The world of microcosm. This world is full of fascination and surprises. Up to the 1930s a deeper penetration into the microcosm was impossible. Only the invention of a new technology enabled us to render still smaller details of the microcosm visible to the human eye. A magnification of up to a thousandth millimetre has become possible. This film provides a profound insight into the microcosm. Rare pictures of mites, water bears and other creatures, made visible by means of various microscopes make the film an extraordinary experience. In addition, the DVD includes bonus material explaining the functions of the different microscopes with the help of diagrams. Due to the combination of the subjects of microcosm and microscopes, this DVD is perfectly suited for biology classes as well as physics lessons.
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MedienLB has been producing award-winning school films and interactive modules for the classroom since 2006.
Penguins
Most people know penguins only from the zoological garden. There they arouse many visitors’ interest. This is, on the one hand, because of their peculiar black-and-white colouring, which reminds you of a tail coat, on the other hand, because of their upright walk. We find penguins amusing or funny; but if we knew more about their extraordinary skills, we would not laugh about them but gaze at them in wonder and reverence.
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Dachs
Der Dachs ist ein nachtaktiver Bewohner der heimischen Wälder. In teilweise jahrzehntealten, bis zu 5m tiefen Bauen verbringt er den Tag und begibt sich nachts auf Nahrungssuche.
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Huhn und Ei
Erstaunliche Zahlen im Zeitalter der Vogelgrippe: Über 18 Milliarden Eier werden jährlich in Deutschland verzehrt und über 10 Kilo Geflügelfleisch landen durchschnittlich im Magen eines jeden Bürgers. „Schau Dich schlau!“ widmet sich heute einer der leckersten Erfindungen der Natur: dem Ei und dem Huhn.
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