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Cell Movement and Transport is organized into
short-play learning modules, for concise instruction.
1. Structure and Behaviour of the Plasma Membrane
(00:57) Phospholipid bi-layers behave as a two dimensional fluid surrounding the
cell.
2. Osmosis
(2:25) Differences in water-potential between the cell interior and its
surroundings affect the net movement of water into and out of a cell.
3. Transport Proteins (00:54) Biological
membranes swarm with proteins that act as gates and channels, allowing
substances to enter and leave cells.
4. Phagocytosis
(1:39) Many types of free-living cells engulf food for digestion within food
vacuoles.
5. Pinocytosis
(00:25) Cells bring in nutrient fluids by incorporating them into small
vesicles.
6. Receptor Mediated Endocytosis (00:47)
Receptor proteins on the cell surface trap specific types of molecules that are
taken in by endocytosis.
7. Golgi Function (00:38) The Golgi apparatus is
a folded stack of membranes that sorts and packages cell products.
8. Lysosomes and Hydrolytic Digestion (1:20)
Demonstrates the action of lysosomes Ñ organelles that hold and transport
hydrolytic enzymes.
9. Microtubules
(1:04) Quickly assembling and breaking down, microtubules create support
structures and function in many kinds of cell movement.
10. Cilia
(1:10) An amazing molecular hook and claw action drives the ciliary beat.
11. Actin and Myosin Motor Proteins (1:15) The
interaction between these two proteins moves cell particles and produces the
contraction of muscles. | |
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The menu structure offers over 30 learning chapters that
can be discussed and repeated as needed to assure that
everyone is up to speed on the content. The DVD-ROM contains a
Teaching Guide (PDF format) for each topic. ©2004, Subtitle
Enabled
The Cell - Unit of Life: The Discovery of Cells,
Cell Structures, Organelle Function, Cell Varieties, The
Chemistry of Life
The Outer Envelope: Membrane Structure, Osmosis,
Transport Proteins, Active Transport, Cell Eating, Cell
Drinking, Receptor Proteins
How Cells Obtain Energy: ATP and Chemical Energy,
Mitochondria, Aerobic Respiration, Chloroplasts, The Reactions
of Photosynthesis
How Cells are Controlled: The Protein Nature of
Life, Enzymatic Reactions, Amino Acids and DNA, How Proteins
are Built, Turning on Genes
How Cells Reproduce: DNA Structure of Replicating
DNA, Mutations Change the Genetic Code, Proofreading and
Repair, The Stages of Mitosis |
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Cells and Molecules |
| PAL
Video - 15 minutes |
Shipped in 28 days |
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NTSC Video - 15 minutes |
Shipped in 10 days |
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Cells and Molecules Cells and Molecules
is organized into short-play learning modules, for concise
instruction.
1. A Variety of Cells (1:25)
Compares prokaryotes (spirilliform bacteria) and a eukaryote (small
amoeba with prominent nucleus) and shows some of the diverse types
of cells found in animals and plants.
2. Prokaryotes
(00:40) Shows a Daphnia carcass undergoing bacterial decomposition; spiral
bacteria 12 micrometers in length (from nutrient-rich pond water); a variety of
decomposer bacteria, size range: 2-40 micrometers; Oscillatoria (from slow
stream, near organic waste source).
3. Flagellates
(00:38) Scenes include: Euglena (from pond sample), 60 micrometers (note the
disc-shaped paramylum bodies used for starch storage); Peranema (from aquatic
vegetation) 70-100 micrometers; Eudorina (pond plankton) 300 micrometers;
Trichonympha (termite gut symbionts) 300-400 micrometers.
4. Amoebas
(00:40) Organisms shown are: Amoeba (pond vegetation) 200 to 400 micrometers;
Vahlkampfia (small amoeba from pond bottom), 20 micrometers; Arcella (pond
scum), 80 micrometers.
5. Ciliates
(1:00) Shows Paramecium (decomposing pond vegetation) 170 micrometers; Stentor
(pond vegetation) 200 to 600 micrometers (the green coloration of the first
species shown is due to symbiotic algae living in its cytoplasm); Euplotes (pond
vegetation, bottom ooze) 70 to 150 micrometers (Euplotes represents a large
group of ciliates that possess tendril-like cirri composed of fused cilia);
Vorticella (on duckweed root) cells are about 70 micrometers across.
6. The Endosymbiotic Theory (1:10) A eukaryotic
cell's energy transforming organelles, chloroplasts and mitochondria, appear to
have originated as symbiotic prokaryotes.
7. Cell Organization (1:39) Provides an overview
of the primary cell organelles: plasma membrane, nucleus, endoplasmic reticulum,
Golgi bodies, lysosomes, mitochondria, and chloroplasts.
8. Overview of Organic Molecules (3:39) This
module shows basic carbon bonding patterns, including the assembly and enzymatic
breakdown of polymers.
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Visualising Cell Processes combines the
previous five titles, Cells & Molecules, Cell Movement and
Transport, Photosynthesis & Cellular Respiration, DNA
& Cell Reproduction, and The Genetic Code. Information on
these five titles can be found under their respective titles on this
page.
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NO IMAGE AVAILABLE |
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Cell Structure |
| Media:
DVD - 11 minutes |
Shipped in 8 days |
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Media: PAL Video - 11 minutes |
Shipped in 24 hours |
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Cells as microscopic building blocks of all animals and plants. The cell wall,
cytoplasm, chloroplasts, nucleus and cell vacuole in plant cells. Structure of
human cheek cells and comparison with plant cell structures.
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Food |
| Media: DVD - 14
minutes |
Shipped in 8 days |
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The basic biochemistry, origin, function of the major food classes and
consequences of their deficiency in the diet. The relationship between society
and diet. Obesity and malnutrition. |
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The importance of fungi and bacteria in industry, health and society.
Structure and function of fungal hyphae and bacteria. Harmful and beneficial
effects of bacteria and fungi. |
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Physiological effects of hormones. Endocrine glands: the pancreas and the
function of insulin, the adrenal gland and the function of adrenalin. Sex
hormones. Effects of plant hormones and isolation of growth hormones from maize
coleoptiles.
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Nervous
System |
| Media:
DVD - 11 minutes |
Shipped in 8 days |
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The sensitivity reaction. The eye and ear as receptor organs. The structure of
the nervous system. The reflex action and its importance in preventing injury.
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Science programs on the following topics: Food; Photosynthesis and Leaf
Structure; The Nervous System; Reproduction in the Flowering Plant; Fungi and
Bacteria; Cell Structure; Hormones in Plants and Animals; Ecosystems. The
programmes are available separately, or on a single video cassette as the GCSE
Biology Series (87 minutes). Each individual programme is approximately 11
minutes long.
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Twelve filmed experiments and demonstrations of
practical work designed to test pupils' ability to follow procedural
instructions and to handle biological apparatus and materials.
CONTENTS:
Experiments: The Iodine Test; Benedicts Test; The Biuret Test; The
Emulsification Test; Dialysis; The Presence of Starch in Leaves;
Light and Photosynthesis; Respiration in Yeast; Digestion of Starch
by Amylase; The Effect of Temperature on Amylase. Techniques: The
Light Microscope; Measuring Liquids. A 36 page accompanying booklet
contains teachers' notes and photocopyable worksheets.
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Microscopy for Biology allows teachers to demonstrate aspects
of microscopy which may otherwise by difficult to show. The program
is divided into six sections and is composed of original material
and includes footage of advanced equipment such as electron
microscopes, a fluorescence microscope and a cryostat.
CONTENTS:
Part 1: the cellular construction of living things. A
brief history of the compound microscope. The cell theory. Principle
of the light microscope. Part 2:
The light microscope and the limit to its resolving power. The numerical
aperture. Limit to useful magnification.
Part 3: Histology and wax embedding. The use of the microtome and
cryostat. Part 4:
Problems of interpretation. Scale in relation to small objects. Brownian
motion. Movement at low Reynolds numbers. Action of cilia and
flagella. Part 5: Principles of transmission and scanning
electron microscopy. Preparation of material for electron
microscopy. Part 6: Interpretation of electron micrographs.
Introduction to recent developments in microscopy. Suitable for
A-level, AS-level, BTEC and other further and higher education
courses.
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The Biology of Viruses
introduces these strange parasitic entities - little more than
packages of genetic information that subvert cells into producing
more viruses. This program presents: the discovery of viruses, their
structures, how they are studied, and their various modes of
infection and replication from the T-4 bacteriaphage to complex
retroviruses such as HIV.
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The Biology of Bacteria
shows: the surprising range of behaviour seen in living
bacteria, how bacteria obtain nutrients through "external
digestion," and how to use sterile techniques for culturing
and studying them. The program shows the vital roles bacteria
play in maintaining the biosphere through oxygen production
(by cyanobacteria), decomposition and nitrogen fixation. |
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