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The cell cycle is a series of developmental and growth events that chart the normal life of a cell. This program uses easy-to-follow animation to illustrate the growth phases of the cell cycle and the processes of mitosis and cytokinesis that follow. The distinct phases of mitosis¡Xincluding prophase, metaphase, anaphase and telophase¡Xare described in detail. The program also explains meiosis, a variation of mitosis involving the formation of gametes in two stages. Apoptosis, or programmed cell death, is also covered, including the effects of uncontrolled cell division (cancer).
All living organisms need energy to perform day-to-day tasks. Using straightforward, vibrant animation to anchor otherwise complex ideas, this program shows how that energy is created through the metabolic processes of catabolism, aerobic cellular respiration, and anabolism. Respiration is covered in depth, with detailed explanations of glycolysis, the Krebs cycle and the electron transport chain. Also covered is fermentation and anaerobic cellular respiration, and how cells help build large, complex molecules through the process of anabolism.
This program explores the basic structure of both animal and plant cells and the specific functions that different cell components serve. After an overview of a complete cell, individual segments dive in to detail each of the specific parts. Discrete, pedagogical segments cover: the plasma membrane, extracellular matrix, flagellum and cilia, the nucleus, nucleolus, nuclear envelope, cytosol and cytoplasm, the rough and smooth endoplasmic reticula, the golgi apparatus, ribosomes, lysosomes, vacuoles, peroxisome, and mitochondria. Where plant and animal cells different is made clear, and separate segments on structures unique to plants include the cell wall, plasmodesmata, and chloroplasts.
That a tiny collection of cells can divide, multiply, and transform into the proper combination of lung cells, brain cells, bone, muscle, and more¡Xeventually becoming a fully formed human being¡Xis often referred to as the miracle of life. But at the cellular level, this is the story of stem cells, cellular differentiation, and gene expression. This program explores these topics, detailing the different types of stem cells (embryonic and adult), and when they leave the cell cycle to enter differentiation. Cell mutation, gene expression, and the process of epigenetics are also covered. Stem cell potency is also reviewed, as is the role and promise of stem cells in medical research, including the pros and cons of using embryonic versus adult-derived stem cells.
This program discusses plasma membrane structure; characteristics of prokaryotic cells and their structures; characteristics of eukaryotic cells and their structures; contrasting plant and animal cells; defines solutions; and discusses diffusion, osmosis, and dialysis.
Cells and their Structures covers the following topics:
~ the relationship between surface area and volume
~ types of microscopes
~ magnification vs. resolving power
~ characteristics of prokaryotic cells and their structures
~ characteristics of eukaryotic cells and their structures
~ contrasting plant and animal cells
~ cell fractionation
~ cellular organization in nature from cells to organism
~ a summary of cell theory
The Cellular Oxidation of Glucose revisits C4 and CAM plants before beginning a detailed look at glycolysis and cellular respiration. This program covers the following topics:
~ aerobic and anaerobic glycolysis
~ mitochondrial structure
~ pyruvate to acetyl CoA
~ Kreb's Cycle
~ mitochondrial electron transport system
~ ATP production
~ the role of oxygen
~ the metabolic relationship between carbohydrates, proteins, and lipids
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.
Cell Membranes DVD 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.
Cell Structure DVD 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.
Glycolysis and Cellular Respiration DVD looks first 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.
Photosynthesis DVD 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.
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').
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 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 advance in biology. Includes interviews with pioneers in stem cell technology and in stem cell ethics.
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.
It's time to investigate your inner real estate: your cells. You consist of over 75 trillion cells and the product will show you what they're like. You'll uncover the mysteries of DNA and crack the genetic codes inside of each and every one of us.
Can you say "semi-permeable'" Your cell membrane sure can. The program will show you why the cell membrane is one of the most important parts of the cell and how it's responsible for functions like active and passive transport, phagocytosis (cellular eating) and pinocytosis (cellular drinking).
The three concepts below, each run 5 minutes , and clearly show with a excellent experiments and computer animation what is happening visibly during the experiments and invisibly at the molecular level.
The three concepts below, each run 5 minutes , and clearly show with a excellent experiments and computer animation what is happening visibly during the experiments and invisibly at the molecular level.
Animal Cells: Structure and Tissues
Plant Cells: Structure and Tissues
Cell Division: Mitosis and Meiosis
This video uses microscope imaging and 3-D animation techniques to illustrate the cellular processes associated with being alive: eating, drinking, breathing and growing.