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Multicellular organisms range from basic to highly complex forms. This engaging program explores the level of organisation necessary for the structure and function of multicellular organisms including cells, tissues, organs and organ systems. It highlights the nervous system of multicellular organisms - both vertebrates and invertebrates - and features excellent dissections of a cane toad and a worm to illustrate the different forms and function of their nervous systems. The footage in the dissecting laboratory is particularly helpful in understanding structure and function of vertebrate and invertebrate nervous systems. This is a practical and information packed program made specifically for the modern classroom.
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Objectives: Students compare cells from different parts of plants and animals including roots, stems, leaves, epithelia, muscles and bones to show specialization of structure and function.
It is estimated that three million people worldwide have been conceived via in vitro fertilization, or IVF. Having this still relatively recent technology has led us to question who 'deserves' it, and the extent to which an embryo should be engineered. Some parents-to-be use IVF to avoid potential hereditary diseases, yet should parents be allowed to choose things like sex, hair and eye colour? Should IVF be free, and if so, should it be free for everyone? This program looks at how different countries have navigated this new ethical territory, and investigates the often opposing stances that various religions have towards the practice. How have the boundaries for artificial pro-creation been set?
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Everyone needs to eat and this program explains why. This program provides the breakdown of the six main types of nutrients that your body needs to fuel you everyday.
Join the Eco=Kids Explorers as they travel to the National Renewable Energy Laboratory (NREL) with an all-access pass to learn about Hydrogen Fuel Cells. After an explanation and history of what a Hydrogen Fuel Cell is, our explorers team up with NREL testers and explain a modern Hydrogen Fuel Cell car. Students will learn how close we are to having them in our driveways.
This program explores the need for multicellular animals to have specialised internal transport systems. Following veterinary experts, we get an exclusive insight into the day-to-day activities of domestic animal health. Seeing what they do to save the life of that beloved family pet and at its core we see how the transport systems can efficiently distribute materials to and from all parts of the body, providing nutrients to cells and removing waste products. They also provide the vital link with the exchange (respiratory and excretory) systems. The evolutionary aspect of internal transport mechanisms is discussed. Following this is a detailed look at circulatory systems, including the differences between the closed systems of vertebrates and the open systems of invertebrates.
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Professor Alan Trounson discusses his role in early IVF breakthroughs, and reviews a range of techniques and current issues related to stem cell research and genetics (including genomics and epigenetics). He highlights the tremendous challenges and opportunities these fields present for young people interested in a science career.
Take your students inside James Thomson's laboratory at the University of Wisconsin where stem cells were first cultured to learn why this breakthrough is so important in the 21st century. This new 2007 updated DVD will help you show your students what stem cells are, how they are cultured, why they offer such potential for the future of our health and welfare.
The program addresses both the science and the ethical dilemmas that accompany this advance in biology. Includes interviews with pioneers in stem cell technology and in stem cell ethics.
Begins by describing the basic structure of atoms and how ions are formed as atoms gain or lose electrons. Molecules and the covalent bonds that hold them together are then investigated. The program then explains the difference between organic and inorganic molecules, polar and non-polar molecules and how the hydrogen bonds that form between polar H2O molecules provide water with a number of unique characteristics critical to life. A look at the concept of pH and the role of buffers concludes the program.
Starts by explaining how polymers are synthesized out of smaller monomers through dehydration reactions that release H2O molecules in the process. The program goes on to look at the role of carbohydrates in energy storage and as structural building blocks; the use of lipids in synthesizing plasma membranes, fats and steroid hormones; proteins in their role as enzymes, hormones, and structural materials; and nucleic acids use in storing information and transferring energy.
Begins by examining cell wall structure and the major functions of cellular membranes before introducing the fluid mosaic model of the phospholipid bilayer, and transport, recognition, and receptor proteins. The concepts of simple and facilitated diffusion, passive and active transport, and osmosis are illustrated. Endocytosis and exocytosis, the role of contractile and central vacuoles, and how desmosomes and tight junctions tie cells together and how plasmodesmata and gap junctions facilitate communication are explained.
First explains the difference between prokaryotic and eukaryotic cells and then explores in detail the structure and function of the major organelles found in eukaryotic cells. Examined organelles include: the nucleus, ribosomes, smooth and rough endoplasmic reticulum, the Golgi complex, lysosomes, chloroplasts, mitochondria, plastids, contractile and central vacuoles, cilia, flagella and the microtubules, microfilaments, and intermediate filaments that make up the cytoskeleton. The program concludes by looking at how cellular shape varies with cellular function.
After looking at the processes of glycolysis and fermentation the program then looks in detail at cellular respiration beginning with the structure of mitochondria. Following the entry of pyruvic acid into the mitochondrial matrix and the formation of acetyl CoA the program continues with an in-depth examination of the citric acid cycle. An exploration of the endosymbiotic hypothesis which offers an explanation of how photosynthesis and cellular respiration arose in eukaryotic cells concludes the program.
First documents how scientists unraveled the mystery of photosynthesis and then examines the structural adaptations in leaves that facilitate photosynthesis, the nature of visible light, and the structure of chloroplasts before going on to explain how the light dependent reactions that occur in photosystems I and II produce ATP and other high energy molecules that are then used to produce glucose via the light independent C3 and C4 cycles which are compared and contrasted to one another
Beginning with the basic concepts of a biological signal and receptor the definition of signal transduction is explained. We then explore various ways in which cells signal other cells: paracine, synaptic and endocrine. Extensive use of animated graphics brings the processes of signal processing to life, showing how the various types of signalling molecules enter cells and how their receptors operate, in particular channel-linked and G- protein receptors. Second messengers are explained. The final section deals with signal amplification, divergent and convergent pathways.
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This program comes to grips with the ethical issues raised by one of the most contentious areas of contemporary science: embryonic stem cell research. A range of viewpoints are presented, and speakers include: Professor Alan Trounson, prominent stem cell scientist; Father Norman Ford, an ethics commentator; Patients with life-threatening medical conditions. They clearly explain what they believe the important issues to be, and the reasons for their viewpoints. Each section is introduced with relevant facts explained in simple terms. Also includes two segments exploring moral/ethical questions raised by related areas of medical science: IVF; genetic testing of IVF embryos (known as PGD, or 'pre-implementation genetic diagnosis').
Look at the genetic, biochemical and environmental processes responsible for the differences and similarities among the same species and examine the history and basic rules of genetic studies. Then, explain chromosomes, mitosis, meiosis, sex determination, genes, DNA and RNA. Material is presented in an innovative, interactive format designed to enhance learning by combining discussion and evaluation into the subject matter.
The basic component for living organisms is the cell, but each cell is a microcosm, teeming with specialized organelles that direct the very forces of life.
Learning Objectives:
1) An overview of basic cellular structure will be provided.
2) An explanation of the functions of various organelles will be given.
3) Differences between eukaryotic and prokaryotic cells will be reviewed.
Learn about the intricacies of the basic unit of life in this fascinating examination of cell membranes.
Learning Objectives:
1) Information about the different components of the cell membrane will be provided.
2) There will be an explanation of how the cell membrane is organized to allow for passive and active cellular transport.
3) Important terms that relate to active and passive cellular transport will be learned.
Travel into the interior of a cell by means of advanced computer graphics. Thanks to amazing microscopy, you can observe real cells as they interact. Understanding the Cell is a program designed to bring the cellular world to the student. Learn about the differences between prokaryotic and eukaryotic cells.
Learning Objectives:
1) Students will become familiar with the basic features of both eukaryotic and prokaryotic cells and they'll learn the differences between them.
2) Students will be able to identify and explain the functions of most organelles.
3) Students will be able to categorize various life forms as being either single-celled or multicellular organisms.
Awards
Aegis Awards "Winner"
National Edicational Media Network's Apple Awards Film & Video Competition "Bronze Apple Award"
Cloning: How and Why
Cloning is one of the most controversial of the new biotechnologies in the 21st century. This up-to-date program takes students to Scotland where Dolly made history as the first cloned mammal. Then we move inside Neal First's laboratory at the University of Wisconsin-Madison where Dr. First explains some of the details of just how cloning is done. Students will be challenged to consider the implications of this revolutionary technology for life in the 21st century.
Stem Cells
Takes your students inside James Thomson's laboratory at the University of Wisconsin where stem cells were first cultured to learn why this breakthrough is so important in the 21st century. This new video will help you show your students what stem cells are; how they are cultured; why they offer such potential for the future of our health and welfare. The program addresses both the science and the ethical dilemmas that accompany this revolutionary advance in biology. Includes exclusive interviews with pioneers in stem cell technology and stem cell ethics.
This information-rich production takes viewers on a tour of a 'cell gallery', and using illustrations of electron microscope imagery and graphics, looks in detail at the structure and function of cellular organelles, including cell membranes, nuclei, mitochondria, chloroplasts, smooth and rough endoplasmic reticula, ribosomes, the Golgi complex, lysosomes, vacuoles, the cytoplasm, cytosol and cytoskeleton, microtubules and microfilaments. It covers the importance of internal cellular membranes, and compares the relative sizes of the different organelles within a cell.
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This program looks at the structure of cell membranes and their function, including compartmentalisation, regulation of the movement of materials, access to information, intercellular interaction, and as a location for biochemical activities. Using a combination of narration, video footage and graphics, the program covers how cell membranes operate and various ways in which materials can cross them, including diffusion, active and passive transport, osmosis, endo- and exocytosis. It also looks at some of the effects of osmosis, including plasmolysis and turgor in plants. Finally the program studies why the surface area to volume ratio of living things is important, and how organisms overcome the tendency for this ratio to decrease, as they grow larger.
Review
"Marvellous program - Covers the difficult idea of the current model of membrane structure very clearly. Good question sheet. Pace of program is good and review sections are also well done." - K.Caley, Grafton High School, Grafton, NSW.
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Note : The above titles may have some territorial restrictions. Please feel free to send us an enquiry.