The Biology Classics Paramecium, Hydra, Planaria, and Daphnia DVD - 31 minutes Shipped in 8 days Cat.# BM-41D $170.00 ADD TO CART

The classics acquaint students with four
organisms often studied in biology.

This program introduces students to four organisms we call the Biology Classics, which are featured in most biology textbooks. Studying these “classics” broadens our concept of what it means to be alive. Structure, behavior, feeding, reproduction, and ecology are observed in each organism, allowing students to compare them. Detailed study guides that can be printed for student use are provided. (2006)

Paramecium
Observations show how Paramecium moves, feeds, digests, assimilates nutrients, achieves water balance, deploys defensive weapons, reproduces, and engages in the sexual exchange of genetic material. The narrated observations utilize state-of-the-art microscopy-techniques to present a compelling new picture of Paramecium’s life.

Hydra
Observations of Hydra show feeding behavior, detailed microscopy of stinging cells used in capturing prey, two digestive processes (cellular and extracellular), locomotion, reproduction by budding, development sex organs, and symbiotic guests, both external and internal.

Planaria
The cross-eyed flatworm, Planaria, is both scavenger and predator depending upon opportunity. Observations show food-seeking behavior, the flatworm’s feeding method, locomotion (produced by a carpet of cilia), internal anatomy, and reproduction through the remarkable process of regeneration.

Daphnia
Daphnia is a classic study in arthropod behavior and anatomy. In living subjects we examine: eye, brain, jaws, intenstine, swimming legs with gills, its beating heart, and two kinds of eggs: those that hatch directly into female daphnia, and resistant eggs that carry the species through periods of freezing and drying.

Visualising Cell Processes DVD - 130 minutes Shipped in 8 days Cat.# BM-27D $420.00 ADD TO CART

Visualising Cell Processes combines the 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. (2002)

Overview of Living Cells A Variety of Cells Cell Organization The Rise of Bacteria Cyanobacteria & Oxygen Eukarya Gets its Start DNA Stucture and Cell Division Chromosome Condensation Mitosis Cytokinesis Meiosis Nucleotide Structure & Bonding Replication Enzymes Replicating the Strands The Twisting Problem Proofreading & Repair Genetic Code and Protein Synthesis The Protein Nature of Life Protein Structure Transcription Translation & Protein Synthesis Gene Regulation in Prokaryotes Mutations Introns & Exons Organic Molecules Carbon Bonding Lip Structure Protein Structure Nucleic Acid Structure Carbohydrate Structure Cell Movement & Transport The Plasma Membrane Osmosis Phagocytosis Transport Proteins Pinocytosis Golgi Function Receptor-Mediated Endocytosis Microtubules Lysosomes & Digestion Cilia Motor Proteins Photosynthesis Chloroplast Structure Light Trapping by Chlorophyll The Light Dependent Reactions Light Independent Reactions Cellular Respiration Glycolysis Fermentation Mitochondria Krebs Cycle Electron Transport Chain ATP Viruses and HIV T-4 Bacteriophage HIV Structure & Life Cycle

Cells and Molecules DVD - 15 minutes Shipped in 8 days Cat.# BM-21D $120.00 ADD TO CART

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.

Cell Movement and Transport DVD - 15 minutes Shipped in 8 days Cat.# BM-22D $120.00 ADD TO CART

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.

Photosynthesis and Cellular Respiration DVD - 15 minutes Shipped in 8 days Cat.# BM-23D $120.00 ADD TO CART

Photosynthesis and Cellular Respiration is organized into
short-play learning modules, for concise instruction.

Cellular Respiration:

1. Glycolysis and Fermentation (2:17) Glycolysis produces a net gain of two ATPs from a molecule of glucose, breaking it down into pyruvic acid.

2. Mitochondrion Structure (1:36) The internal structure of a mitochondrion can be understood in terms of compartmentalizing ATP production.

3. Aerobic Respiration (1:36) This module presents an overview of how energy is extracted from organic molecules using oxygen.

4. Krebs Cycle (1:03) Animation shows key steps in the energy extracting reactions that occur in the matrix of a mitochondrion.

5. Electron Transport Chain (1:16) Driven by oxygens thirst for electrons, proteins on the inner membrane pump hydrogen ions into the inner membrane space, creating conditions for ATP synthesis.

6. ATP Synthesis (00:51) Enzyme complexes on the inner mitochondrial membrane use a chemosynthetic process to synthesize ATP from ADP.

Photosynthesis:

7. Chloroplast Structure (00:44) The substructure of a chloroplast reflects its photosynthetic functions.

8. Light Trapping by Chlorophyll (00:55) Chlorophyll molecules form complexes that feed energized electrons into an electron transport chain.

9. The Light-Dependent Reactions of Photosynthesis (1:26) These reactions produce ATP and NADPH, the energy carriers that drive biosynthesis.

10. The Light-Independent Reactions of Photosynthesis (1:18) A cycle of reactions creates PGAL, the universal building block of sugars and starches.

DNA Replication and Cell Reproduction DVD - 15 minutes Shipped in 8 days Cat.# BM-24D $120.00 ADD TO CART

DNA and Cell Reproduction is organized into short-play
learning modules, for concise instruction.

1. Mitosis: Chromosome Condensation (1:04) Shows the remarkable packaging of DNA as it condenses into chromosomes.

2. Mitosis: Stages (2:24) Reviews the chromosome patterns seen at different stages of the mitotic cycle.

3. Cytokinesis (00:30) Shows the basic differences between protist, animal and plant cell division.

4. Meiosis (1:00) Shows how chromosome sorting and crossing over introduces new gene combinations into a population, while achieving the reduction of chromosomes to the haploid number.

5. Nucleotide Structure and Bonding (1:26) Illustrates DNA chemistry, the basis for encoding genetic information in molecular structure.

6. Replication Enzymes (1:02) Demonstrates the chemical steps in DNA replication and shows how each step is accomplished by means of an enzyme.

7. Replicating the Leading and Lagging Strands (1:57) Because the two strands of DNA must be replicated in opposite directions, two different replication strategies are used at each replication fork.

8. Topoisomerase and the Twisting Problem (00:43) To prevent tightening of the helix as it is opened, an enzyme nicks the strand and allows it to rotate, relieving tension and permitting the replication fork to advance.

9. Proofreading and Repair (00:53) Damage to DNA is common, but a fleet of repair enzymes races over the DNA and corrects errors.

The Genetic Code DVD - 15 minutes Shipped in 8 days Cat.# BM-25D $120.00 ADD TO CART

The Genetic Code video is organized into short-play
learning modules, for concise instruction.

1. The Protein Nature of Life (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. Protein Structure (0:36) This module shows how 20 amino acids can produce an almost infinite number of proteins and how the shape of a protein is achieved.

3. Transcription (1:37) Shows how the DNA code is transcribed onto nucleotides of mRNA. The mRNA strands are then shown migrating into the cytoplasm where they are used as templates for synthesizing proteins.

4. Translation and the Protein Synthesis (1:31) Animates the functions of ribosomal RNA and transfer RNA in the translation of mRNA into a protein.

5. Gene Regulation in Prokaryotes (1:46) Production of the enzyme beta-galactosidase by lactose-digesting bacteria creates a model of the first gene regulation mechanism to be clearly understood Ñ the lac operon.

6. Classes of Eukaryote DNA (1:08) Not all of a cells functional DNA codes for large proteins. Short repeated sections code for small ones in high production, such as histones, while other repeat sections from the caps and centromere of chromosomes.

7. Exons and Introns (1:25) One of the great surprises in molecular biology was the discovery that up to 90 percent of a cells DNA is silent.

8. Mutations (1:44) This module illustrates several types of mutations that occur in DNA. Frame-shift mutations are the most damaging, whereas point mutations are a potential source of variety for evolutionary processes.

Inside the Living Cell DVD - 50 minutes Shipped in 8 days Cat.# BM-35D $270.00 ADD TO CART

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

2006

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.